2007 INFINITI FX35 wiring

EC-8Revision: 2006 July 2007 FX35/FX45
Precautions for Procedures without Cowl Top Cover
.685
On Board Diagnostic (OBD) System of Engine and
A/T ....................................................................... .685
Precaution ........................................................... .686
PREPARATION ...................................................... .689
Special Service Tools .......................................... .689
Commercial Service Tools ................................... .690
ENGINE CONTROL SYSTEM ............................... .691
System Diagram .................................................. .691
Multiport Fuel Injection (MFI) System .................. .692
Electronic Ignition (EI) System ............................ .694
Fuel Cut Control (at No Load and High Engine
Speed) ................................................................. .695
AIR CONDITIONING CUT CONTROL ................... .696
Input/Output Signal Chart .................................... .696
System Description .............................................. .696
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .697
System Description .............................................. .697
Component Description ....................................... .698
CAN COMMUNICATION ........................................ .699
System Description .............................................. .699
EVAPORATIVE EMISSION SYSTEM .................... .700
Description ........................................................... .700
Component Inspection ......................................... .703
Removal and Installation ..................................... .704
How to Detect Fuel Vapor Leakage ..................... .704
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ................................................................... .707
System Description .............................................. .707
Diagnostic Procedure .......................................... .708
Component Inspection ......................................... .710
POSITIVE CRANKCASE VENTILATION .............. .712
Description ........................................................... .712
Component Inspection ......................................... .712
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ..................................................................... .714
Description ........................................................... .714
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......... .715
Introduction .......................................................... .715
Two Trip Detection Logic ..................................... .715
Emission-related Diagnostic Information ............. .716
Malfunction Indicator Lamp (MIL) ........................ .730
OBD System Operation Chart ............................. .732
BASIC SERVICE PROCEDURE ............................ .738
Basic Inspection .................................................. .738
Idle Speed and Ignition Timing Check ................. .743
Procedure After Replacing ECM ......................... .744
VIN Registration .................................................. .744
Accelerator Pedal Released Position Learning ... .745
Throttle Valve Closed Position Learning .............. .745
Idle Air Volume Learning ..................................... .745
Fuel Pressure Check ........................................... .747
TROUBLE DIAGNOSIS ......................................... .749
Trouble Diagnosis Introduction ............................ .749
DTC Inspection Priority Chart .............................. .755
Fail-Safe Chart .................................................... .757
Symptom Matrix Chart ......................................... .758
Engine Control Component Parts Location ......... .762
Vacuum Hose Drawing ........................................ .769 Circuit Diagram ....................................................
.770
ECM Harness Connector Terminal Layout ........... .772
ECM Terminals and Reference Value .................. .772
CONSULT-II Function (ENGINE) ......................... .781
Generic Scan Tool (GST) Function ...................... .793
CONSULT-II Reference Value in Data Monitor .... .796
Major Sensor Reference Graph in Data Monitor
Mode .................................................................... .800
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .802
Description ........................................................... .802
Testing Condition ................................................. .802
Inspection Procedure ........................................... .802
Diagnostic Procedure ........................................... .803
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ...................................................................... .812
Description ........................................................... .812
Diagnostic Procedure ........................................... .812
POWER SUPPLY AND GROUND CIRCUIT .......... .813
Wiring Diagram .................................................... .813
Diagnostic Procedure ........................................... .814
Ground Inspection ................................................ .819
DTC U1000, U1001 CAN COMMUNICATION LINE .820
Description ........................................................... .820
On Board Diagnosis Logic ................................... .820
DTC Confirmation Procedure ............................... .820
Wiring Diagram .................................................... .821
Diagnostic Procedure ........................................... .822
DTC U1010 CAN COMMUNICATION .................... .823
Description ........................................................... .823
On Board Diagnosis Logic ................................... .823
DTC Confirmation Procedure ............................... .823
Diagnostic Procedure ........................................... .824
DTC P0011, P0021 IVT CONTROL ........................ .825
Description ........................................................... .825
CONSULT-II Reference Value in Data Monitor Mode .826
On Board Diagnosis Logic ................................... .826
DTC Confirmation Procedure ............................... .827
Wiring Diagram .................................................... .828
Diagnostic Procedure ........................................... .831
Component Inspection ......................................... .835
Removal and Installation ...................................... .836
DTC P0031, P0032, P0051, P0052 A/F SENSOR 1
HEATER .................................................................. .837
Description ........................................................... .837
CONSULT-II Reference Value in Data Monitor Mode .837
On Board Diagnosis Logic ................................... .837
DTC Confirmation Procedure ............................... .837
Wiring Diagram .................................................... .838
Diagnostic Procedure ........................................... .841
Component Inspection ......................................... .843
Removal and Installation ...................................... .843
DTC P0037, P0038, P0057, P0058 HO2S2 HEATER .844
Description ........................................................... .844
CONSULT-II Reference Value in Data Monitor Mode .844
On Board Diagnosis Logic ................................... .844
DTC Confirmation Procedure ............................... .845

EC-9
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Wiring Diagram ...................................................
. 846
Diagnostic Procedure .......................................... . 849
Component Inspection ........................................ . 851
Removal and Installation ..................................... . 851
DTC P0075, P0081 IVT CONTROL SOLENOID
VALVE .................................................................... . 852
Component Description ....................................... . 852
CONSULT-II Reference Value in Data Monitor Mode . 852
On Board Diagnosis Logic .................................. . 852
DTC Confirmation Procedure .............................. . 852
Wiring Diagram ................................................... . 853
Diagnostic Procedure .......................................... . 857
Component Inspection ........................................ . 858
Removal and Installation ..................................... . 858
DTC P0101 MAF SENSOR ................................... . 859
Component Description ....................................... . 859
CONSULT-II Reference Value in Data Monitor Mode . 859
On Board Diagnosis Logic .................................. . 859
DTC Confirmation Procedure .............................. . 860
Overall Function Check ....................................... . 861
Wiring Diagram ................................................... . 862
Diagnostic Procedure .......................................... . 863
Component Inspection ........................................ . 866
Removal and Installation ..................................... . 867
DTC P0102, P0103 MAF SENSOR ....................... . 868
Component Description ....................................... . 868
CONSULT-II Reference Value in Data Monitor Mode . 868
On Board Diagnosis Logic .................................. . 868
DTC Confirmation Procedure .............................. . 869
Wiring Diagram ................................................... . 870
Diagnostic Procedure .......................................... . 871
Component Inspection ........................................ . 873
Removal and Installation ..................................... . 874
DTC P0112, P0113 IAT SENSOR .......................... . 875
Component Description ....................................... . 875
On Board Diagnosis Logic .................................. . 875
DTC Confirmation Procedure .............................. . 875
Wiring Diagram ................................................... . 877
Diagnostic Procedure .......................................... . 878
Component Inspection ........................................ . 879
Removal and Installation ..................................... . 879
DTC P0117, P0118 ECT SENSOR ........................ . 880
Component Description ....................................... . 880
On Board Diagnosis Logic .................................. . 880
DTC Confirmation Procedure .............................. . 881
Wiring Diagram ................................................... . 882
Diagnostic Procedure .......................................... . 883
Component Inspection ........................................ . 885
Removal and Installation ..................................... . 885
DTC P0122, P0123 TP SENSOR .......................... . 886
Component Description ....................................... . 886
CONSULT-II Reference Value in Data Monitor Mode . 886
On Board Diagnosis Logic .................................. . 886
DTC Confirmation Procedure .............................. . 887
Wiring Diagram ................................................... . 888 Diagnostic Procedure ..........................................
.889
Component Inspection ......................................... .892
Removal and Installation ..................................... .892
DTC P0125 ECT SENSOR .................................... .893
Component Description ....................................... .893
On Board Diagnosis Logic ................................... .893
DTC Confirmation Procedure .............................. .894
Diagnostic Procedure .......................................... .894
Component Inspection ......................................... .895
Removal and Installation ..................................... .895
DTC P0127 IAT SENSOR ...................................... .896
Component Description ....................................... .896
On Board Diagnosis Logic ................................... .896
DTC Confirmation Procedure .............................. .896
Diagnostic Procedure .......................................... .897
Component Inspection ......................................... .898
Removal and Installation ..................................... .898
DTC P0128 THERMOSTAT FUNCTION ................ .899
On Board Diagnosis Logic ................................... .899
DTC Confirmation Procedure .............................. .899
Diagnostic Procedure .......................................... .899
Component Inspection ......................................... .900
Removal and Installation ..................................... .900
DTC P0130, P0150 A/F SENSOR 1 ...................... .901
Component Description ....................................... .901
CONSULT-II Reference Value in Data Monitor Mode .901
On Board Diagnosis Logic ................................... .901
DTC Confirmation Procedure .............................. .902
Overall Function Check ....................................... .903
Wiring Diagram .................................................... .904
Diagnostic Procedure .......................................... .907
Removal and Installation ..................................... .910
DTC P0131, P0151 A/F SENSOR 1 ...................... .911
Component Description ....................................... .911
CONSULT-II Reference Value in Data Monitor Mode .911
On Board Diagnosis Logic ................................... .911
DTC Confirmation Procedure .............................. .912
Wiring Diagram .................................................... .913
Diagnostic Procedure .......................................... .916
Removal and Installation ..................................... .919
DTC P0132, P0152 A/F SENSOR 1 ...................... .920
Component Description ....................................... .920
CONSULT-II Reference Value in Data Monitor Mode .920
On Board Diagnosis Logic ................................... .920
DTC Confirmation Procedure .............................. .921
Wiring Diagram .................................................... .922
Diagnostic Procedure .......................................... .925
Removal and Installation ..................................... .928
DTC P0133, P0153 A/F SENSOR 1 ...................... .929
Component Description ....................................... .929
CONSULT-II Reference Value in Data Monitor Mode .929
On Board Diagnosis Logic ................................... .929
DTC Confirmation Procedure .............................. .930
Wiring Diagram .................................................... .932

EC-10Revision: 2006 July 2007 FX35/FX45
Diagnostic Procedure ..........................................
.935
Removal and Installation ..................................... .940
DTC P0137, P0157 HO2S2 .................................... .941
Component Description ....................................... .941
CONSULT-II Reference Value in Data Monitor Mode .941
On Board Diagnosis Logic ................................... .941
DTC Confirmation Procedure .............................. .942
Overall Function Check ....................................... .943
Wiring Diagram .................................................... .944
Diagnostic Procedure .......................................... .947
Component Inspection ......................................... .950
Removal and Installation ..................................... .951
DTC P0138, P0158 HO2S2 .................................... .952
Component Description ....................................... .952
CONSULT-II Reference Value in Data Monitor Mode .952
On Board Diagnosis Logic ................................... .952
DTC Confirmation Procedure .............................. .953
Overall Function Check ....................................... .954
Wiring Diagram .................................................... .955
Diagnostic Procedure .......................................... .958
Component Inspection ......................................... .963
Removal and Installation ..................................... .964
DTC P0139, P0159 HO2S2 .................................... .965
Component Description ....................................... .965
CONSULT-II Reference Value in Data Monitor Mode .965
On Board Diagnosis Logic ................................... .965
DTC Confirmation Procedure .............................. .966
Overall Function Check ....................................... .967
Wiring Diagram .................................................... .968
Diagnostic Procedure .......................................... .971
Component Inspection ......................................... .974
Removal and Installation ..................................... .975
DTC P0171, P0174 FUEL INJECTION SYSTEM
FUNCTION ............................................................. .976
On Board Diagnosis Logic ................................... .976
DTC Confirmation Procedure .............................. .976
Wiring Diagram .................................................... .978
Diagnostic Procedure .......................................... .982
DTC P0172, P0175 FUEL INJECTION SYSTEM
FUNCTION ............................................................. .987
On Board Diagnosis Logic ................................... .987
DTC Confirmation Procedure .............................. .987
Wiring Diagram .................................................... .989
Diagnostic Procedure .......................................... .993
DTC P0181 FTT SENSOR ..................................... .998
Component Description ....................................... .998
On Board Diagnosis Logic ................................... .998
DTC Confirmation Procedure .............................. .998
Wiring Diagram .................................................... 1000
Diagnostic Procedure .......................................... 1001
Component Inspection ......................................... 1003
Removal and Installation ..................................... 1003
DTC P0182, P0183 FTT SENSOR ......................... 1004
Component Description ....................................... 1004
On Board Diagnosis Logic ................................... 1004
DTC Confirmation Procedure .............................. 1004 Wiring Diagram ....................................................
1005
Diagnostic Procedure ........................................... 1006
Component Inspection ......................................... 1008
Removal and Installation ...................................... 1008
DTC P0222, P0223 TP SENSOR ........................... 1009
Component Description ....................................... 1009
CONSULT-II Reference Value in Data Monitor Mode 1009
On Board Diagnosis Logic ................................... 1009
DTC Confirmation Procedure ............................... 1010
Wiring Diagram .................................................... 1011
Diagnostic Procedure ........................................... 1012
Component Inspection ......................................... 1015
Removal and Installation ...................................... 1015
DTC P0300 - P0308 MULTIPLE CYLINDER MIS-
FIRE, NO. 1 - 8 CYLINDER MISFIRE .................... 1016
On Board Diagnosis Logic ................................... 1016
DTC Confirmation Procedure ............................... 1017
Diagnostic Procedure ........................................... 1018
DTC P0327, P0328, P0332, P0333 KS .................. 1026
Component Description ....................................... 1026
On Board Diagnosis Logic ................................... 1026
DTC Confirmation Procedure ............................... 1026
Wiring Diagram .................................................... 1027
Diagnostic Procedure ........................................... 1028
Component Inspection ......................................... 1030
Removal and Installation ...................................... 1030
DTC P0335 CKP SENSOR (POS) ......................... 1031
Component Description ....................................... 1031
CONSULT-II Reference Value in Data Monitor Mode 1031
On Board Diagnosis Logic ................................... 1031
DTC Confirmation Procedure ............................... 1032
Wiring Diagram .................................................... 1033
Diagnostic Procedure ........................................... 1034
Component Inspection ......................................... 1037
Removal and Installation ...................................... 1037
DTC P0340 CAMSHAFT POSITION (CMP) SEN-
SOR (PHASE) ........................................................ 1038
Component Description ....................................... 1038
CONSULT-II Reference Value in Data Monitor Mode 1038
On Board Diagnosis Logic ................................... 1038
DTC Confirmation Procedure ............................... 1039
Wiring Diagram .................................................... 1040
Diagnostic Procedure ........................................... 1041
Component Inspection ......................................... 1044
Removal and Installation ...................................... 1044
DTC P0420, P0430 THREE WAY CATALYST FUNC-
TION ....................................................................... 1045
On Board Diagnosis Logic ................................... 1045
DTC Confirmation Procedure ............................... 1045
Overall Function Check ........................................ 1046
Diagnostic Procedure ........................................... 1047
DTC P0441 EVAP CONTROL SYSTEM ................ 1051
System Description .............................................. 1051
On Board Diagnosis Logic ................................... 1051
DTC Confirmation Procedure ............................... 1051

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Overall Function Check .......................................
1052
Diagnostic Procedure .......................................... 1053
DTC P0442 EVAP CONTROL SYSTEM ............... 1056
On Board Diagnosis Logic .................................. 1056
DTC Confirmation Procedure .............................. 1057
Diagnostic Procedure .......................................... 1059
DTC P0443 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ............................. 1065
Description .......................................................... 1065
CONSULT-II Reference Value in Data Monitor Mode 1065
On Board Diagnosis Logic .................................. 1066
DTC Confirmation Procedure .............................. 1066
Wiring Diagram ................................................... 1067
Diagnostic Procedure .......................................... 1069
Component Inspection ........................................ 1072
Removal and Installation ..................................... 1072
DTC P0444, P0445 EVAP CANISTER PURGE VOL-
UME CONTROL SOLENOID VALVE .................... 1073
Description .......................................................... 1073
CONSULT-II Reference Value in Data Monitor Mode 1073
On Board Diagnosis Logic .................................. 1074
DTC Confirmation Procedure .............................. 1074
Wiring Diagram ................................................... 1075
Diagnostic Procedure .......................................... 1077
Component Inspection ........................................ 1078
Removal and Installation ..................................... 1079
DTC P0447 EVAP CANISTER VENT CONTROL
VALVE .................................................................... 1080
Component Description ....................................... 1080
CONSULT-II Reference Value in Data Monitor Mode
1080
On Board Diagnosis Logic .................................. 1080
DTC Confirmation Procedure .............................. 1081
Wiring Diagram ................................................... 1082
Diagnostic Procedure .......................................... 1083
Component Inspection ........................................ 1085
DTC P0448 EVAP CANISTER VENT CONTROL
VALVE .................................................................... 1087
Component Description ....................................... 1087
CONSULT-II Reference Value in Data Monitor Mode 1087
On Board Diagnosis Logic .................................. 1087
DTC Confirmation Procedure .............................. 1088
Wiring Diagram ................................................... 1089
Diagnostic Procedure .......................................... 1090
Component Inspection ........................................ 1091
DTC P0451 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................ 1093
Component Description ....................................... 1093
CONSULT-II Reference Value in Data Monitor Mode 1093
On Board Diagnosis Logic .................................. 1093
DTC Confirmation Procedure .............................. 1094
Diagnostic Procedure .......................................... 1094
Component Inspection ........................................ 1095
DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR ................................................................
1096
Component Description ....................................... 1096
CONSULT-II Reference Value in Data Monitor Mode 1096
On Board Diagnosis Logic ................................... 1096
DTC Confirmation Procedure .............................. 1097
Wiring Diagram .................................................... 1098
Diagnostic Procedure .......................................... 1099
Component Inspection ......................................... 11 0 1
DTC P0453 EVAP CONTROL SYSTEM PRESSURE
SENSOR ................................................................ 110 2
Component Description ....................................... 11 0 2
CONSULT-II Reference Value in Data Monitor Mode 11 0 2
On Board Diagnosis Logic ................................... 11 0 2
DTC Confirmation Procedure .............................. 11 0 3
Wiring Diagram .................................................... 11 0 4
Diagnostic Procedure .......................................... 11 0 5
Component Inspection ......................................... 11 0 9
DTC P0455 EVAP CONTROL SYSTEM ................ 111 0
On Board Diagnosis Logic ...................................1110
DTC Confirmation Procedure ..............................1111
Diagnostic Procedure ..........................................1112
DTC P0456 EVAP CONTROL SYSTEM ................ 111 8
On Board Diagnosis Logic ...................................1118
DTC Confirmation Procedure ..............................1119
Overall Function Check ....................................... 11 2 0
Diagnostic Procedure .......................................... 11 2 1
DTC P0460 FUEL LEVEL SENSOR ...................... 112 7
Component Description ....................................... 11 2 7
On Board Diagnosis Logic ................................... 11 2 7
DTC Confirmation Procedure .............................. 11 2 7
Diagnostic Procedure .......................................... 11 2 8
Removal and Installation ..................................... 11 2 8
DTC P0461 FUEL LEVEL SENSOR ...................... 112 9
Component Description ....................................... 11 2 9
On Board Diagnosis Logic ................................... 11 2 9
Overall Function Check ....................................... 11 2 9
Diagnostic Procedure .......................................... 11 3 0
Removal and Installation ..................................... 11 3 0
DTC P0462, P0463 FUEL LEVEL SENSOR ......... 113 1
Component Description ....................................... 11 3 1
On Board Diagnosis Logic ................................... 11 3 1
DTC Confirmation Procedure .............................. 11 3 1
Diagnostic Procedure .......................................... 11 3 2
Removal and Installation ..................................... 11 3 2
DTC P0500 VSS ..................................................... 113 3
Description ........................................................... 11 3 3
On Board Diagnosis Logic ................................... 11 3 3
DTC Confirmation Procedure .............................. 11 3 3
Overall Function Check ....................................... 11 3 4
Diagnostic Procedure .......................................... 11 3 4
DTC P0506 ISC SYSTEM ...................................... 113 5
Description ........................................................... 11 3 5
On Board Diagnosis Logic ................................... 11 3 5
DTC Confirmation Procedure .............................. 11 3 5
Diagnostic Procedure .......................................... 11 3 6
DTC P0507 ISC SYSTEM ...................................... 113 7
Description ........................................................... 11 3 7

EC-12Revision: 2006 July 2007 FX35/FX45
On Board Diagnosis Logic ...................................
11 3 7
DTC Confirmation Procedure .............................. 11 3 7
Diagnostic Procedure .......................................... 11 3 8
DTC P0550 PSP SENSOR ..................................... 113 9
Component Description ....................................... 11 3 9
CONSULT-II Reference Value in Data Monitor Mode 11 3 9
On Board Diagnosis Logic ................................... 11 3 9
DTC Confirmation Procedure .............................. 11 3 9
Wiring Diagram .................................................... 11 4 0
Diagnostic Procedure .......................................... 11 4 1
Component Inspection ......................................... 11 4 3
Removal and Installation ..................................... 11 4 3
DTC P0603 ECM POWER SUPPLY ...................... 114 4
Component Description ....................................... 11 4 4
On Board Diagnosis Logic ................................... 11 4 4
DTC Confirmation Procedure .............................. 11 4 4
Wiring Diagram .................................................... 11 4 5
Diagnostic Procedure .......................................... 11 4 6
DTC P0605 ECM .................................................... 114 8
Component Description ....................................... 11 4 8
On Board Diagnosis Logic ................................... 11 4 8
DTC Confirmation Procedure .............................. 11 4 8
Diagnostic Procedure .......................................... 11 4 9
DTC P0643 SENSOR POWER SUPPLY ............... 115 1
On Board Diagnosis Logic ................................... 11 5 1
DTC Confirmation Procedure .............................. 11 5 1
Wiring Diagram .................................................... 11 5 2
Diagnostic Procedure .......................................... 11 5 4
DTC P0850 PNP SWITCH ..................................... 115 6
Component Description ....................................... 11 5 6
CONSULT-II Reference Value in Data Monitor Mode
11 5 6
On Board Diagnosis Logic ................................... 11 5 6
DTC Confirmation Procedure .............................. 11 5 6
Overall Function Check ....................................... 11 5 7
Wiring Diagram .................................................... 11 5 8
Diagnostic Procedure .......................................... 11 5 9
DTC P1140, P1145 IVT CONTROL POSITION SEN-
SOR ........................................................................ 116 1
Component Description ....................................... 11 6 1
CONSULT-II Reference Value in Data Monitor Mode 11 6 1
On Board Diagnosis Logic ................................... 11 6 1
DTC Confirmation Procedure .............................. 11 6 1
Wiring Diagram .................................................... 11 6 3
Diagnostic Procedure .......................................... 11 6 6
Component Inspection ......................................... 11 6 9
Removal and Installation ..................................... 11 6 9
DTC P1148, P1168 CLOSED LOOP CONTROL ... 117 0
On Board Diagnosis Logic ................................... 11 7 0
DTC P1211 TCS CONTROL UNIT ......................... 117 1
Description ........................................................... 11 7 1
On Board Diagnosis Logic ................................... 11 7 1
DTC Confirmation Procedure .............................. 11 7 1
Diagnostic Procedure .......................................... 11 7 1
DTC P1212 TCS COMMUNICATION LINE ........... 117 2
Description ........................................................... 11 7 2
On Board Diagnosis Logic ................................... 11 7 2 DTC Confirmation Procedure ...............................
11 7 2
Diagnostic Procedure ........................................... 11 7 2
DTC P1217 ENGINE OVER TEMPERATURE ....... 11 73
Description ........................................................... 11 7 3
CONSULT-II Reference Value in Data Monitor Mode 11 7 4
On Board Diagnosis Logic ................................... 11 7 4
Overall Function Check ........................................ 11 7 5
Wiring Diagram .................................................... 11 7 7
Diagnostic Procedure ........................................... 11 7 9
Main 13 Causes of Overheating .......................... 11 8 3
Component Inspection ......................................... 11 8 4
DTC P1225 TP SENSOR ....................................... 11 85
Component Description ....................................... 11 8 5
On Board Diagnosis Logic ................................... 11 8 5
DTC Confirmation Procedure ............................... 11 8 5
Diagnostic Procedure ........................................... 11 8 6
Removal and Installation ...................................... 11 8 6
DTC P1226 TP SENSOR ....................................... 11 87
Component Description ....................................... 11 8 7
On Board Diagnosis Logic ................................... 11 8 7
DTC Confirmation Procedure ............................... 11 8 7
Diagnostic Procedure ........................................... 11 8 8
Removal and Installation ...................................... 11 8 8
DTC P1421 COLD START CONTROL ................... 11 89
Description ........................................................... 11 8 9
On Board Diagnosis Logic ................................... 11 8 9
DTC Confirmation Procedure ............................... 11 8 9
Diagnostic Procedure ........................................... 11 8 9
DTC P1564 ICC STEERING SWITCH ................... 11 91
Component Description ....................................... 11 9 1
CONSULT-II Reference Value in Data Monitor Mode
11 9 1
On Board Diagnosis Logic ................................... 11 9 1
DTC Confirmation Procedure ............................... 11 9 2
Wiring Diagram .................................................... 11 9 3
Diagnostic Procedure ........................................... 11 9 4
Component Inspection ......................................... 11 9 7
DTC P1564 ASCD STEERING SWITCH ............... 11 98
Component Description ....................................... 11 9 8
CONSULT-II Reference Value in Data Monitor Mode 11 9 8
On Board Diagnosis Logic ................................... 11 9 8
DTC Confirmation Procedure ............................... 11 9 9
Wiring Diagram .................................................... 1200
Diagnostic Procedure ........................................... 1201
Component Inspection ......................................... 1204
DTC P1568 ICC FUNCTION .................................. 1205
On Board Diagnosis Logic ................................... 1205
DTC Confirmation Procedure ............................... 1205
Diagnostic Procedure ........................................... 1205
DTC P1572 ICC BRAKE SWITCH ......................... 1206
Component Description ....................................... 1206
CONSULT-II Reference Value in Data Monitor Mode 1206
On Board Diagnosis Logic ................................... 1206
DTC Confirmation Procedure ............................... 1207
Wiring Diagram .................................................... 1208

EC-13
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Diagnostic Procedure ..........................................
1209
Component Inspection ........................................ 1214
DTC P1572 ASCD BRAKE SWITCH .................... 1215
Component Description ....................................... 1215
CONSULT-II Reference Value in Data Monitor Mode 1215
On Board Diagnosis Logic .................................. 1215
DTC Confirmation Procedure .............................. 1216
Wiring Diagram ................................................... 1217
Diagnostic Procedure .......................................... 1218
Component Inspection ........................................ 1222
DTC P1574 ICC VEHICLE SPEED SENSOR ....... 1223
Component Description ....................................... 1223
On Board Diagnosis Logic .................................. 1223
DTC Confirmation Procedure .............................. 1223
Diagnostic Procedure .......................................... 1224
DTC P1574 ASCD VEHICLE SPEED SENSOR ... 1225
Component Description ....................................... 1225
On Board Diagnosis Logic .................................. 1225
DTC Confirmation Procedure .............................. 1225
Diagnostic Procedure .......................................... 1226
DTC P1715 INPUT SPEED SENSOR (TURBINE
REVOLUTION SENSOR) ...................................... 1227
Description .......................................................... 1227
CONSULT-II Reference Value in Data Monitor Mode 1227
On Board Diagnosis Logic .................................. 1227
Diagnostic Procedure .......................................... 1227
DTC P1800 VIAS CONTROL SOLENOID VALVE 1228 Component Description ....................................... 1228
CONSULT-II Reference Value in Data Monitor Mode 1228
On Board Diagnosis Logic .................................. 1228
DTC Confirmation Procedure .............................. 1228
Wiring Diagram ................................................... 1229
Diagnostic Procedure .......................................... 1230
Component Inspection ........................................ 1231
Removal and Installation ..................................... 1232
DTC P1805 BRAKE SWITCH ............................... 1233
Description .......................................................... 1233
CONSULT-II Reference Value in Data Monitor Mode 1233
On Board Diagnosis Logic .................................. 1233
DTC Confirmation Procedure .............................. 1233
Wiring Diagram ................................................... 1234
Diagnostic Procedure .......................................... 1235
Component Inspection ........................................ 1237
DTC P2100, P2103 THROTTLE CONTROL MOTOR
RELAY ................................................................... 1238
Component Description ....................................... 1238
CONSULT-II Reference Value in Data Monitor Mode 1238
On Board Diagnosis Logic .................................. 1238
DTC Confirmation Procedure .............................. 1238
Wiring Diagram ................................................... 1240
Diagnostic Procedure .......................................... 1241
DTC P2101 ELECTRIC THROTTLE CONTROL
FUNCTION ............................................................. 1244
Description .......................................................... 1244 On Board Diagnosis Logic ...................................
1244
DTC Confirmation Procedure .............................. 1244
Wiring Diagram .................................................... 1245
Diagnostic Procedure .......................................... 1246
Component Inspection ......................................... 1250
Removal and Installation ..................................... 1250
DTC P2118 THROTTLE CONTROL MOTOR ........ 1251
Component Description ....................................... 1251
On Board Diagnosis Logic ................................... 1251
DTC Confirmation Procedure .............................. 1251
Wiring Diagram .................................................... 1252
Diagnostic Procedure .......................................... 1253
Component Inspection ......................................... 1254
Removal and Installation ..................................... 1255
DTC P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ 1256
Component Description ....................................... 1256
On Board Diagnosis Logic ................................... 1256
DTC Confirmation Procedure .............................. 1256
Diagnostic Procedure .......................................... 1257
DTC P2122, P2123 APP SENSOR ........................ 1258
Component Description ....................................... 1258
CONSULT-II Reference Value in Data Monitor Mode 1258
On Board Diagnosis Logic ................................... 1258
DTC Confirmation Procedure .............................. 1259
Wiring Diagram .................................................... 1260
Diagnostic Procedure .......................................... 1261
Component Inspection ......................................... 1263
Removal and Installation ..................................... 1264
DTC P2127, P2128 APP SENSOR ........................ 1265
Component Description ....................................... 1265
CONSULT-II Reference Value in Data Monitor Mode 1265
On Board Diagnosis Logic ................................... 1265
DTC Confirmation Procedure .............................. 1266
Wiring Diagram .................................................... 1267
Diagnostic Procedure .......................................... 1268
Component Inspection ......................................... 1271
Removal and Installation ..................................... 1271
DTC P2135 TP SENSOR ....................................... 1272
Component Description ....................................... 1272
CONSULT-II Reference Value in Data Monitor Mode 1272
On Board Diagnosis Logic ................................... 1272
DTC Confirmation Procedure .............................. 1273
Wiring Diagram .................................................... 1274
Diagnostic Procedure .......................................... 1275
Component Inspection ......................................... 1278
Removal and Installation ..................................... 1278
DTC P2138 APP SENSOR .................................... 1279
Component Description ....................................... 1279
CONSULT-II Reference Value in Data Monitor Mode 1279
On Board Diagnosis Logic ................................... 1279
DTC Confirmation Procedure .............................. 1280
Wiring Diagram .................................................... 1281
Diagnostic Procedure .......................................... 1282

EC-14Revision: 2006 July 2007 FX35/FX45
Component Inspection .........................................
1286
Removal and Installation ..................................... 1286
DTC P2A00, P2A03 A/F SENSOR 1 ..................... 1287
Component Description ....................................... 1287
CONSULT-II Reference Value in Data Monitor Mode 1287
On Board Diagnosis Logic ................................... 1287
DTC Confirmation Procedure .............................. 1288
Wiring Diagram .................................................... 1289
Diagnostic Procedure .......................................... 1292
Removal and Installation ..................................... 1298
ASCD BRAKE SWITCH ......................................... 1299
Component Description ....................................... 1299
CONSULT-II Reference Value in Data Monitor Mode 1299
Wiring Diagram .................................................... 1300
Diagnostic Procedure .......................................... 1301
Component Inspection ......................................... 1305
ASCD INDICATOR ................................................. 1306
Component Description ....................................... 1306
CONSULT-II Reference Value in Data Monitor Mode 1306
Wiring Diagram .................................................... 1307
Diagnostic Procedure .......................................... 1308
ELECTRICAL LOAD SIGNAL ............................... 1309
Description ........................................................... 1309
CONSULT-II Reference Value in Data Monitor Mode 1309
Diagnostic Procedure .......................................... 1309
FUEL INJECTOR ................................................... 1311
Component Description ....................................... 1311
CONSULT-II Reference Value in Data Monitor Mode
1311
Wiring Diagram .................................................... 1312
Diagnostic Procedure .......................................... 1313
Component Inspection ......................................... 1317
Removal and Installation ..................................... 1317
FUEL PUMP ........................................................... 1318
Description ........................................................... 1318
CONSULT-II Reference Value in Data Monitor Mode 1318
Wiring Diagram .................................................... 1319
Diagnostic Procedure .......................................... 1320
Component Inspection ......................................... 1323
Removal and Installation ..................................... 1323
ICC BRAKE SWITCH ............................................. 1324
Component Description ....................................... 1324
CONSULT-II Reference Value in Data Monitor Mode 1324
Wiring Diagram .................................................... 1325
Diagnostic Procedure ........................................... 1326
Component Inspection ......................................... 1331
IGNITION SIGNAL ................................................. 1332
Component Description ....................................... 1332
Wiring Diagram .................................................... 1333
Diagnostic Procedure ........................................... 1338
Component Inspection ......................................... 1343
Removal and Installation ...................................... 1344
REFRIGERANT PRESSURE SENSOR ................. 1345
Component Description ....................................... 1345
Wiring Diagram .................................................... 1346
Diagnostic Procedure ........................................... 1347
Removal and Installation ...................................... 1349
SNOW MODE SWITCH .......................................... 1350
Description ........................................................... 1350
CONSULT-II Reference Value in the Data Monitor
Mode .................................................................... 1350
Wiring Diagram .................................................... 1351
Diagnostic Procedure ........................................... 1352
Component Inspection ......................................... 1354
VARIABLE INDUCTION AIR CONTROL SYSTEM
(VIAS) ..................................................................... 1355
Description ........................................................... 1355
CONSULT-II Reference Value in Data Monitor Mode 1356
Wiring Diagram .................................................... 1357
Diagnostic Procedure ........................................... 1359
Component Inspection ......................................... 1362
Removal and Installation ...................................... 1363
MIL AND DATA LINK CONNECTOR ..................... 1364
Wiring Diagram .................................................... 1364
SERVICE DATA AND SPECIFICATIONS (SDS) ... 1366
Fuel Pressure ....................................................... 1366
Idle Speed and Ignition Timing ............................. 1366
Calculated Load Value ......................................... 1366
Mass Air Flow Sensor .......................................... 1366
Intake Air Temperature Sensor ............................ 1366
Engine Coolant Temperature Sensor ................... 1366
Fuel Tank Temperature Sensor ............................ 1366
Crankshaft Position Sensor (POS) ...................... 1366
Camshaft Position Sensor (PHASE) .................... 1366
A/F Sensor 1 Heater ............................................ 1366
Heated Oxygen sensor 2 Heater ......................... 1367
Throttle Control Motor .......................................... 1367
Fuel Injector ......................................................... 1367
Fuel Pump ............................................................ 1367

PRECAUTIONS EC-23
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EC
Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NBS003KW
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Procedures without Cowl Top CoverNBS006SD
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
On Board Diagnostic (OBD) System of Engine and A/TNBS003KX
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-71, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MIL to light up due to the short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to the malfunction of the EVAP system or fuel injection system,
etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PIIB3706J