2004 INFINITI FX35 control

EC-12Revision: 2004 November 2004 FX35/FX451095
On Board Diagnosis Logic ...................................1095
DTC Confirmation Procedure ..............................1095
Wiring Diagram ....................................................1096
Diagnostic Procedure ..........................................1099
Component Inspection .........................................11 0 2
Removal and Installation .....................................11 0 2
DTC P1143, P1163 HO2S1 ....................................110 3
Component Description .......................................11 0 3
CONSULT-II Reference Value in Data Monitor Mode
11 0 3
On Board Diagnosis Logic ...................................11 0 3
DTC Confirmation Procedure ..............................11 0 4
Overall Function Check .......................................11 0 5
Diagnostic Procedure ..........................................11 0 5
Component Inspection .........................................11 0 7
Removal and Installation .....................................11 0 8
DTC P1144, P1164 HO2S1 ....................................110 9
Component Description .......................................11 0 9
CONSULT-II Reference Value in Data Monitor Mode
11 0 9
On Board Diagnosis Logic ...................................11 0 9
DTC Confirmation Procedure ..............................111 0
Overall Function Check .......................................1111
Diagnostic Procedure ..........................................1111
Component Inspection .........................................111 3
Removal and Installation .....................................111 5
DTC P1146, P1166 HO2S2 ....................................111 6
Component Description .......................................111 6
CONSULT-II Reference Value in Data Monitor Mode
111 6
On Board Diagnosis Logic ...................................111 6
DTC Confirmation Procedure ..............................111 7
Overall Function Check .......................................111 7
Wiring Diagram ....................................................111 9
Diagnostic Procedure ..........................................11 2 2
Component Inspection .........................................11 2 5
Removal and Installation .....................................11 2 6
DTC P1147, P1167 HO2S2 ....................................112 7
Component Description .......................................11 2 7
CONSULT-II Reference Value in Data Monitor Mode
11 2 7
On Board Diagnosis Logic ...................................11 2 7
DTC Confirmation Procedure ..............................11 2 8
Overall Function Check .......................................11 2 8
Wiring Diagram ....................................................11 3 0
Diagnostic Procedure ..........................................11 3 3
Component Inspection .........................................11 3 6
Removal and Installation .....................................11 3 7
DTC P1148, P1168 CLOSED LOOP CONTROL ...113 8
On Board Diagnosis Logic ...................................11 3 8
DTC Confirmation Procedure ..............................11 3 8
Overall Function Check .......................................11 3 9
Diagnostic Procedure ..........................................11 3 9
DTC P1211 TCS CONTROL UNIT .........................114 0
Description ...........................................................11 4 0
On Board Diagnosis Logic ...................................11 4 0
DTC Confirmation Procedure ..............................11 4 0
Diagnostic Procedure ..........................................11 4 0DTC P1212 TCS COMMUNICATION LINE ............11 41
Description ...........................................................11 4 1
On Board Diagnosis Logic ...................................11 4 1
DTC Confirmation Procedure ...............................11 4 1
Diagnostic Procedure ...........................................11 4 1
DTC P1217 ENGINE OVER TEMPERATURE .......11 42
Description ...........................................................11 4 2
CONSULT-II Reference Value in Data Monitor Mode
11 4 3
On Board Diagnosis Logic ...................................11 4 3
Overall Function Check ........................................11 4 3
Wiring Diagram ....................................................11 4 5
Diagnostic Procedure ...........................................11 4 7
Main 12 Causes of Overheating ..........................11 5 0
Component Inspection .........................................11 5 1
DTC P1225 TP SENSOR .......................................11 52
Component Description .......................................11 5 2
On Board Diagnosis Logic ...................................11 5 2
DTC Confirmation Procedure ...............................11 5 2
Diagnostic Procedure ...........................................11 5 3
Removal and Installation ......................................11 5 3
DTC P1226 TP SENSOR .......................................11 54
Component Description .......................................11 5 4
On Board Diagnosis Logic ...................................11 5 4
DTC Confirmation Procedure ...............................11 5 4
Diagnostic Procedure ...........................................11 5 5
Removal and Installation ......................................11 5 5
DTC P1229 SENSOR POWER SUPPLY ...............11 56
On Board Diagnosis Logic ...................................11 5 6
DTC Confirmation Procedure ...............................11 5 6
Wiring Diagram ....................................................11 5 7
Diagnostic Procedure ...........................................11 5 8
DTC P1444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ..............................11 60
Description ...........................................................11 6 0
CONSULT-II Reference Value in Data Monitor Mode
11 6 0
On Board Diagnosis Logic ...................................11 6 1
DTC Confirmation Procedure ...............................11 6 1
Wiring Diagram ....................................................11 6 2
Diagnostic Procedure ...........................................11 6 4
Component Inspection .........................................11 6 7
Removal and Installation ......................................11 6 7
DTC P1446 EVAP CANISTER VENT CONTROL
VALVE .....................................................................11 68
Component Description .......................................11 6 8
CONSULT-II Reference Value in Data Monitor Mode
11 6 8
On Board Diagnosis Logic ...................................11 6 8
DTC Confirmation Procedure ...............................11 6 9
Wiring Diagram ....................................................11 7 0
Diagnostic Procedure ...........................................11 7 1
Component Inspection .........................................11 7 2
DTC P1564 ICC STEERING SWITCH ...................11 74
Component Description .......................................11 7 4
CONSULT-II Reference Value in Data Monitor Mode
11 7 4
On Board Diagnosis Logic ...................................11 7 4
DTC Confirmation Procedure ...............................11 7 4

EC-13
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Revision: 2004 November 2004 FX35/FX45Wiring Diagram ...................................................1176
Diagnostic Procedure ..........................................1177
Component Inspection ........................................1180
DTC P1564 ASCD STEERING SWITCH ...............1181
Component Description .......................................1181
CONSULT-II Reference Value in Data Monitor Mode
1181
On Board Diagnosis Logic ..................................1181
DTC Confirmation Procedure ..............................1182
Wiring Diagram ...................................................1183
Diagnostic Procedure ..........................................1184
Component Inspection ........................................1187
DTC P1568 ICC FUNCTION ..................................1188
On Board Diagnosis Logic ..................................1188
DTC Confirmation Procedure ..............................1188
Diagnostic Procedure ..........................................1188
DTC P1572 ICC BRAKE SWITCH ........................1189
Component Description .......................................1189
CONSULT-II Reference Value in Data Monitor Mode
1189
On Board Diagnosis Logic ..................................1189
DTC Confirmation Procedure ..............................1190
Wiring Diagram ...................................................1191
Diagnostic Procedure ..........................................1192
Component Inspection ........................................1197
DTC P1572 ASCD BRAKE SWITCH ....................1199
Component Description .......................................1199
CONSULT-II Reference Value in Data Monitor Mode
1199
On Board Diagnosis Logic ..................................1199
DTC Confirmation Procedure ..............................1200
Wiring Diagram ...................................................1201
Diagnostic Procedure ..........................................1202
Component Inspection ........................................1206
DTC P1574 ICC VEHICLE SPEED SENSOR .......1207
Component Description .......................................1207
On Board Diagnosis Logic ..................................1207
DTC Confirmation Procedure ..............................1207
Diagnostic Procedure ..........................................1208
DTC P1574 ASCD VEHICLE SPEED SENSOR ...1209
Component Description .......................................1209
On Board Diagnosis Logic ..................................1209
DTC Confirmation Procedure ..............................1209
Diagnostic Procedure ..........................................1210
DTC P1706 PNP SWITCH .....................................1211
Component Description .......................................1211
CONSULT-II Reference Value in Data Monitor Mode
1211
On Board Diagnosis Logic ..................................1211
DTC Confirmation Procedure ..............................1211
Overall Function Check .......................................1212
Wiring Diagram ...................................................1213
Diagnostic Procedure ..........................................1214
DTC P1720 VEHICLE SPEED SENSOR (A/T OUT-
PUT) .......................................................................1216
Description ..........................................................1216
CONSULT-II Reference Value in Data Monitor Mode
1216
On Board Diagnosis Logic ..................................1216DTC Confirmation Procedure ..............................1216
Diagnostic Procedure ..........................................1217
DTC P1780 SHIFT CHANGE SIGNAL ..................1218
Description ...........................................................1218
On Board Diagnosis Logic ...................................1218
DTC Confirmation Procedure ..............................1218
Diagnostic Procedure ..........................................1218
DTC P1805 BRAKE SWITCH ................................1220
Description ...........................................................1220
CONSULT-II Reference Value in Data Monitor Mode
1220
On Board Diagnosis Logic ...................................1220
DTC Confirmation Procedure ..............................1220
Wiring Diagram ....................................................1221
Diagnostic Procedure ..........................................1222
Component Inspection .........................................1224
DTC P2122, P2123 APP SENSOR ........................1225
Component Description .......................................1225
CONSULT-II Reference Value in Data Monitor Mode
1225
On Board Diagnosis Logic ...................................1225
DTC Confirmation Procedure ..............................1226
Wiring Diagram ....................................................1227
Diagnostic Procedure ..........................................1228
Component Inspection .........................................1230
Removal and Installation .....................................1231
DTC P2127, P2128 APP SENSOR ........................1232
Component Description .......................................1232
CONSULT-II Reference Value in Data Monitor Mode
1232
On Board Diagnosis Logic ...................................1232
DTC Confirmation Procedure ..............................1233
Wiring Diagram ....................................................1234
Diagnostic Procedure ..........................................1235
Component Inspection .........................................1238
Removal and Installation .....................................1238
DTC P2135 TP SENSOR .......................................1239
Component Description .......................................1239
CONSULT-II Reference Value in Data Monitor Mode
1239
On Board Diagnosis Logic ...................................1239
DTC Confirmation Procedure ..............................1240
Wiring Diagram ....................................................1241
Diagnostic Procedure ..........................................1242
Component Inspection .........................................1245
Removal and Installation .....................................1245
DTC P2138 APP SENSOR ....................................1246
Component Description .......................................1246
CONSULT-II Reference Value in Data Monitor Mode
1246
On Board Diagnosis Logic ...................................1246
DTC Confirmation Procedure ..............................1247
Wiring Diagram ....................................................1248
Diagnostic Procedure ..........................................1249
Component Inspection .........................................1253
Removal and Installation .....................................1253
VARIABLE INDUCTION AIR CONTROL SYSTEM
(VIAS) .....................................................................1254
Description ...........................................................1254

EC-14Revision: 2004 November 2004 FX35/FX45CONSULT-II Reference Value in Data Monitor Mode
1255
Wiring Diagram ....................................................1256
Diagnostic Procedure ..........................................1257
Component Inspection .........................................1260
Removal and Installation .....................................1261
IGNITION SIGNAL .................................................1262
Component Description .......................................1262
Wiring Diagram ....................................................1263
Diagnostic Procedure ..........................................1268
Component Inspection .........................................1272
Removal and Installation .....................................1273
INJECTOR CIRCUIT ..............................................1274
Component Description .......................................1274
CONSULT-II Reference Value in Data Monitor Mode
1274
Wiring Diagram ....................................................1275
Diagnostic Procedure ..........................................1276
Component Inspection .........................................1279
Removal and Installation .....................................1279
FUEL PUMP CIRCUIT ...........................................1280
Description ...........................................................1280
CONSULT-II Reference Value in Data Monitor Mode
1280
Wiring Diagram ....................................................1281
Diagnostic Procedure ..........................................1282
Component Inspection .........................................1285
Removal and Installation .....................................1286
REFRIGERANT PRESSURE SENSOR .................1287
Component Description .......................................1287
Wiring Diagram ....................................................1288
Diagnostic Procedure ..........................................1289
Removal and Installation .....................................1291
ELECTRICAL LOAD SIGNAL ...............................1292
Description ...........................................................1292
CONSULT-II Reference Value in Data Monitor Mode
1292
Diagnostic Procedure ..........................................1292
ICC BRAKE SWITCH .............................................1293
Component Description .......................................1293
CONSULT-II Reference Value in Data Monitor Mode
1293
Wiring Diagram ....................................................1294
Diagnostic Procedure ..........................................1295
Component Inspection .........................................1301
ASCD BRAKE SWITCH .........................................1302
Component Description .......................................1302
CONSULT-II Reference Value in Data Monitor Mode
1302Wiring Diagram ....................................................1303
Diagnostic Procedure ...........................................1304
Component Inspection .........................................1308
ASCD INDICATOR .................................................1309
Component Description .......................................1309
CONSULT-II Reference Value in Data Monitor Mode
1309
Wiring Diagram ....................................................1310
Diagnostic Procedure ...........................................1311
SNOW MODE SWITCH ..........................................1312
Description ...........................................................1312
CONSULT-II Reference Value in the Data Monitor
Mode ....................................................................1312
Wiring Diagram ....................................................1313
Diagnostic Procedure ...........................................1314
Component Inspection .........................................1317
MIL AND DATA LINK CONNECTOR .....................1318
Wiring Diagram ....................................................1318
EVAPORATIVE EMISSION SYSTEM ....................1320
Description ...........................................................1320
Component Inspection .........................................1323
Removal and Installation ......................................1324
How to Detect Fuel Vapor Leakage .....................1324
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ...................................................................1327
System Description ..............................................1327
Diagnostic Procedure ...........................................1328
Component Inspection .........................................1330
POSITIVE CRANKCASE VENTILATION ...............1332
Description ...........................................................1332
Component Inspection .........................................1332
AUTOMATIC SPEED CONTROL DEVICE (ASCD) 1334
System Description ..............................................1334
Component Description .......................................1335
SERVICE DATA AND SPECIFICATIONS (SDS) ...1336
Fuel Pressure .......................................................1336
Idle Speed and Ignition Timing .............................1336
Calculated Load Value .........................................1336
Mass Air Flow Sensor ..........................................1336
Intake Air Temperature Sensor ............................1336
Engine Coolant Temperature Sensor ...................1336
Heated Oxygen Sensor 1 Heater .........................1336
Heated Oxygen Sensor 2 Heater .........................1336
Crankshaft Position Sensor (POS) ......................1336
Camshaft Position Sensor (PHASE) ....................1336
Throttle Control Motor ..........................................1336
Injector .................................................................1337
Fuel Pump ............................................................1337

EC-18
[VQ35DE]
INDEX FOR DTC
Revision: 2004 November 2004 FX35/FX45
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
*7: For models with ICC or ASCD system.
*8: For models with ICC system.PW ST P SEN/CIRC P0550 0550 2 —EC-396
SENSOR POWER/CIRC P1229 1229 1×EC-489
TCC SOLENOID/CIRC P0740 0740 2×AT-123
TCS C/U FUNCTN P1211 1211 2 —EC-470
TCS/CIRC P1212 1212 2 —EC-471
THERMSTAT FNCTN P0128 0128 2×EC-203
TP SEN 1/CIRC P0222 0222 1×EC-284
TP SEN 1/CIRC P0223 0223 1×EC-284
TP SEN 2/CIRC P0122 0122 1×EC-190
TP SEN 2/CIRC P0123 0123 1×EC-190
TP SEN/CIRC A/T P1705 1705 1×AT-136
TP SENSOR P2135 2135 1×EC-569
TURBINE REV S/CIRC P1716 1716 2×AT-143
TW CATALYST SYS-B1 P0420 0420 2×EC-316
TW CATALYST SYS-B2 P0430 0430 2×EC-316
VEH SPD SEN/CIR AT*6P0720 0720 2×AT- 11 6
VEH SPEED SEN/CIRC*6P0500 0500 2×EC-390
VENT CONTROL VALVE P0447 0447 2×EC-342
VENT CONTROL VALVE P1446 1446 2×EC-502
Items
(CONSULT-II screen terms)DTC*
1
TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-20
[VQ35DE]
INDEX FOR DTC
Revision: 2004 November 2004 FX35/FX45
P0159 0159 HO2S2 (B2) 2×EC-245
P0171 0171 FUEL SYS-LEAN-B1 2×EC-256
P0172 0172 FUEL SYS-RICH-B1 2×EC-265
P0174 0174 FUEL SYS-LEAN-B2 2×EC-256
P0175 0175 FUEL SYS-RICH-B2 2×EC-265
P0181 0181 FTT SENSOR 2×EC-273
P0182 0182 FTT SEN/CIRCUIT 2×EC-279
P0183 0183 FTT SEN/CIRCUIT 2×EC-279
P0222 0222 TP SEN 1/CIRC 1×EC-284
P0223 0223 TP SEN 1/CIRC 1×EC-284
P0300 0300 MULTI CYL MISFIRE 2×EC-291
P0301 0301 CYL 1 MISFIRE 2×EC-291
P0302 0302 CYL 2 MISFIRE 2×EC-291
P0303 0303 CYL 3 MISFIRE 2×EC-291
P0304 0304 CYL 4 MISFIRE 2×EC-291
P0305 0305 CYL 5 MISFIRE 2×EC-291
P0306 0306 CYL 6 MISFIRE 2×EC-291
P0327 0327 KNOCK SEN/CIRC-B1 2 —EC-297
P0328 0328 KNOCK SEN/CIRC-B1 2 —EC-297
P0335 0335 CKP SEN/CIRCUIT 2×EC-302
P0340 0340 CMP SEN/CIRC-B1 2×EC-308
P0345 0345 CMP SEN/CIRC-B2 2×EC-308
P0420 0420 TW CATALYST SYS-B1 2×EC-316
P0430 0430 TW CATALYST SYS-B2 2×EC-316
P0441 0441 EVAP PURG FLOW/MON 2×EC-321
P0442 0442 EVAP SMALL LEAK 2×EC-326
P0444 0444 PURG VOLUME CONT/V 2×EC-335
P0445 0445 PURG VOLUME CONT/V 2×EC-335
P0447 0447 VENT CONTROL VALVE 2×EC-342
P0451 0451 EVAP SYS PRES SEN 2×EC-349
P0452 0452 EVAP SYS PRES SEN 2×EC-352
P0453 0453 EVAP SYS PRES SEN 2×EC-358
P0455 0455 EVAP GROSS LEAK 2×EC-366
P0456 0456 EVAP VERY SML LEAK 2×EC-374
P0460 0460 FUEL LEV SEN SLOSH 2×EC-384
P0461 0461 FUEL LEVEL SENSOR 2×EC-386
P0462 0462 FUEL LEVL SEN/CIRC 2×EC-388
P0463 0463 FUEL LEVL SEN/CIRC 2×EC-388
P0500 0500
VEH SPEED SEN/CIRC*62×EC-390
P0506 0506 ISC SYSTEM 2×EC-392
P0507 0507 ISC SYSTEM 2×EC-394
P0550 0550 PW ST P SEN/CIRC 2 —EC-396
DTC*1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC
EC-21
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Revision: 2004 November 2004 FX35/FX45P0605 0605 ECM 1 or 2× or —EC-401
P0705 0705 PNP SW/CIRC 2×AT- 11 2
P0710 0710 ATF TEMP SEN/CIRC 2×AT- 1 3 9
P0720 0720
VEH SPD SEN/CIR AT*62×AT- 11 6
P0725 0725 ENGINE SPEED SIG 2×AT- 1 2 1
P0740 0740 TCC SOLENOID/CIRC 2×AT- 1 2 3
P0744 0744 A/T TCC S/V FNCTN 2×AT- 1 2 5
P0745 0745 L/PRESS SOL/CIRC 2×AT- 1 2 7
P1065 1065 ECM BACK UP/CIRCUIT 2×EC-404
P 1111 1111 I N T / V T I M V / C I R - B 1 2×EC-408
P1121 1121 ETC ACTR 1×EC-415
P1122 1122 ETC FUNCTION/CIRC 1×EC-417
P1124 1124 ETC MOT PWR 1×EC-423
P1126 1126 ETC MOT PWR 1×EC-423
P1128 1128 ETC MOT 1×EC-428
P1136 1136 INT/V TIM V/CIR-B2 2×EC-408
P1143 1143 HO2S1 (B1) 2×EC-433
P1144 1144 HO2S1 (B1) 2×EC-439
P1146 1146 HO2S2 (B1) 2×EC-446
P1147 1147 HO2S2 (B1) 2×EC-457
P1148 1148 CLOSED LOOP-B1 1×EC-468
P1163 1163 HO2S1 (B2) 2×EC-433
P1164 1164 HO2S1 (B2) 2×EC-439
P1166 1166 HO2S2 (B2) 2×EC-446
P1167 1167 HO2S2 (B2) 2×EC-457
P1168 1168 CLOSED LOOP-B2 1×EC-468
P1211 1211 TCS C/U FUNCTN 2 —EC-470
P1212 1212 TCS/CIRC 2 —EC-471
P1217 1217 ENG OVER TEMP 1×EC-472
P1225 1225 CTP LEARNING 2 —EC-485
P1226 1226 CTP LEARNING 2 —EC-487
P1229 1229 SENSOR POWER/CIRC 1×EC-489
P1444 1444 PURG VOLUME CONT/V 2×EC-494
P1446 1446 VENT CONTROL VALVE 2×EC-502
P1564 1564
ASCD SW*71—EC-508, EC-515
P1568 1568
ACC COMMAND VALUE*81—EC-521
P1572 1572
ASCD BRAKE SW*71—EC-522, EC-532
P1574 1574
ASCD VHL SPD SEN*71—EC-541, EC-543
P1610 - P1615 1610 - 1615 NATS MALFUNCTION 2 —EC-68
P1705 1705 TP SEN/CIRC A/T 1×AT- 1 3 6
P1706 1706 P-N POS SW/CIRCUIT 2×EC-545
P1716 1716 TURBINE REV S/CIRC 2×AT- 1 4 3
DTC*1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

EC-22
[VQ35DE]
INDEX FOR DTC
Revision: 2004 November 2004 FX35/FX45
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: When the fail-safe operations for both self-diagnoses occur, the MIL illuminates.
*7: For models with ICC or ASCD system.
*8: For models with ICC system.P1730 1730 A/T INTERLOCK 1×AT-147
P1752 1752 I/C SOLENOID/CIRC 1×AT-152
P1754 1754 I/C SOLENOID FNCTN 1×AT-154
P1757 1757 FR/B SOLENOID/CIRC 1×AT-156
P1759 1759 FR/B SOLENOID FNCT 1×AT-158
P1762 1762 D/C SOLENOID/CIRC 1×AT-160
P1764 1764 D/C SOLENOID FNCTN 1×AT-162
P1767 1767 HLR/C SOL/CIRC 1×AT-164
P1769 1769 HLR/C SOL FNCTN 1×AT-166
P1772 1772 LC/B SOLENOID/CIRC 1×AT-168
P1774 1774 LC/B SOLENOID FNCT 1×AT-170
P1805 1805 BRAKE SW/CIRCUIT 2 —EC-550
P2122 2122 APP SEN 1/CIRC 1×EC-555
P2123 2123 APP SEN 1/CIRC 1×EC-555
P2127 2127 APP SEN 2/CIRC 1×EC-562
P2128 2128 APP SEN 2/CIRC 1×EC-562
P2135 2135 TP SENSOR 1×EC-569
P2138 2138 APP SENSOR 1×EC-576
DTC*1
Items
(CONSULT-II screen terms)TripMIL lighting
upReference page
CONSULT-II
GST*
2ECM*3

PRECAUTIONS
EC-23
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Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ABS00A2R
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.
On Board Diagnostic (OBD) System of Engine and A/TABS006JZ
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-74, "
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.
PrecautionABS006K0

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cables while engine is
running.

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

Before removing parts, turn ignition switch OFF and then
disconnect negative battery cable.
SEF289H