2004 NISSAN PATROL engine wiring

ENGINECONTROLSYSTEM
SECTION
EC
MODIFICATION NOTICE:
+Wiring diagrams have been modi®ed.
+ MAF sensor has been changed for ZD30DDTi engine models.
CONTENTS
TB45E
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM .....................................................................4003
Circuit Diagram ......................................................4003
TROUBLE DIAGNOSIS FOR NON-DETECTABLE
ITEMS ........................................................................\
.4004
Vehicle Speed Sensor (VSS) ................................4004
TB48DE M/T
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.....................................................................4005
Circuit Diagram ......................................................4005
VEHICLE SPEED SENSOR (VSS) ...........................4007
Wiring Diagram ......................................................4007
ELECTRICAL LOAD SIGNAL ...................................4008
Wiring Diagram ......................................................4008
Diagnostic Procedure ............................................4009
TB48DE A/T
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.....................................................................4013
Circuit Diagram ......................................................4013
SNOW MODE SWITCH .............................................4015
Wiring Diagram ......................................................4015
ELECTRICAL LOAD SIGNAL ...................................4016
Wiring Diagram ......................................................4016
Diagnostic Procedure ............................................4018
TB48DE A/T (WITH EURO-OBD)
TROUBLE DIAGNOSIS .............................................4022
Circuit Diagram ......................................................4022
SNOW MODE SWITCH .............................................4024
Wiring Diagram ......................................................4024
ELECTRICAL LOAD SIGNAL ...................................4025 Wiring Diagram ......................................................4025
Diagnostic Procedure ............................................4027
TD42
QUICK-GLOW SYSTEM ............................................4031
Circuit Diagram ......................................................4031
Wiring Diagram ......................................................4033
FAST IDLE CONTROL CIRCUIT ..............................4036
Wiring Diagram ......................................................4036
ZD30DDTi
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.....................................................................4037
Circuit Diagram ......................................................4037
TROUBLE DIAGNOSIS Ð GENERAL
DESCRIPTION ...........................................................4038
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................4038
ECM Terminals and Reference Value ...................4040
DTC 0102 MASS AIR FLOW SEN ............................4047
Component Description .........................................4047
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................4047
ECM Terminals and Reference Value ...................4047
On Board Diagnosis Logic.....................................4047
DTC Con®rmation Procedure ................................4048
Wiring Diagram ......................................................4049
Diagnostic Procedure ............................................4050
DTC 0104 VEHICLE SPEED SEN ............................4053
Wiring Diagram ......................................................4053
HEAT UP SWITCH ....................................................4054
Wiring Diagram ......................................................4054
Diagnostic Procedure ............................................4055
AIR CONDITIONER CONTROL ................................4058
Wiring Diagram ......................................................4058
EC-4001

TD42Ti
ENGINE AND EMISSION CONTROL OVERALL
SYSTEM.....................................................................4059
Circuit Diagram ......................................................4059TROUBLE DIAGNOSES FOR NON-DETECTABLE
ITEMS.........................................................................4060
Vehicle Speed Sensor (VSS) ................................4060
When you read wiring diagrams:
+Read GI section, ªHOW TO READ WIRING DIAGRAMSº.
+See EL section, ªPOWER SUPPLY ROUTINGº for power distribution circuit.
When you perform trouble diagnoses, read GI section, ªHOW TO FOLLOW FLOW CHART IN
TROUBLE DIAGNOSESº and ªHOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL
INCIDENTº.
CONTENTS(Cont'd)
EC-4002

jB
CHECK REAR WINDOW DEFOGGER
FUNCTION.
1. Start engine.
2. Turn ON the rear window defogger
switch.
3. Check the rear windshield.
Is the rear windshield heated up?
Ye s
cNo
Refer to EL section.
CHECK POWER SUPPLY CIRCUIT.
1. Stop engine.
2. Disconnect rear window defogger relay.
3. Check voltage between rear window
defogger relay terminalj
3and ground
with CONSULT-II or tester.
Voltage: Battery voltage
OK
cNG
Check the following.
+15A fuse
+Harness for open or
short between rear win-
dow defogger relay and
battery
If NG, repair open circuit or
short to ground or short to
power in harness or con-
nectors.
CHECK INPUT SIGNAL CIRCUIT FOR
OPEN OR SHORT.
1. Disconnect ECM harness connector.
2. Check harness continuity between rear
window defogger relay terminalj
5and
ECM terminalj
96.
Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground
and short to power.
OK
cNG
Check the following.
+Harness connectors
E127,M21
+Harness connectors
M50,F5
+Harness for open or
short between rear win-
dow defogger relay and
ECM
If NG, repair open circuit or
short to ground or short to
power in harness or con-
nectors.
CHECK REAR WINDOW DEFOGGER
RELAY.
Refer to EL section.
OK
cNG
Replace rear window
defogger relay.
CHECK INTERMITTENT INCIDENT.
Refer to ªTROUBLE DIAGNOSIS FOR
INTERMITTENT INCIDENTº, EC-125 in
Service Manual (Publication No. SM1E-
Y61EG1).
INSPECTION END
PBIB0302E
.
.
.
.
.
.
ELECTRICAL LOAD SIGNALTB48DE M/T
Diagnostic Procedure (Cont'd)
EC-4011

2 CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
With CONSULT-II
Check ªLOAD SIGNALº indication under the following conditions.
PBIB0103E
MTBL1595
OK or NG
OKcINSPECTION END
NGcGO TO 7.
3 CHECK REAR WINDOW DEFOGGER FUNCTION
1. Start engine.
2. Turn ªONº the rear window defogger switch.
3. Check the rear windshield. Is the rear windshield heated up?
YesorNo
Ye scGO TO 4.
NocCheck rear window defogger circuit. Refer to EL section.
4 CHECK REAR WINDOW DEFOGGER INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect rear window defogger relay.
3. Disconnect combination meter harness connector.
4. Check harness continuity between rear window defogger relay terminal 5 and combination meter terminal 27.
Refer to Wiring Diagram.
Continuity should exist.
5. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 6.
NGcGO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E127, M21
+Harness for open or short between rear window defogger relay and combination meter
cRepair open circuit or short to ground or short to power in harness or connectors.
ELECTRICAL LOAD SIGNALTB48DE A/T
Diagnostic Procedure (Cont'd)
EC-4019

2 CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
With CONSULT-II
Check ªLOAD SIGNALº indication under the following conditions.
PBIB0103E
MTBL1595
OK or NG
OKcINSPECTION END
NGcGO TO 7.
3 CHECK REAR WINDOW DEFOGGER FUNCTION
1. Start engine.
2. Turn ªONº the rear window defogger switch.
3. Check the rear windshield. Is the rear windshield heated up?
YesorNo
Ye scGO TO 4.
NocCheck rear window defogger circuit. Refer to EL section.
4 CHECK REAR WINDOW DEFOGGER INPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1. Stop engine.
2. Disconnect rear window defogger relay.
3. Disconnect combination meter harness connector.
4. Check harness continuity between rear window defogger relay terminal 5 and combination meter terminal 27.
Refer to Wiring Diagram.
Continuity should exist.
5. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 6.
NGcGO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E127, M21
+Harness for open or short between rear window defogger relay and combination meter
cRepair open circuit or short to ground or short to power in harness or connectors.
ELECTRICAL LOAD
SIGNALTB48DE A/T (WITH EURO-OBD)
Diagnostic Procedure (Cont'd)
EC-4028

3 CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screws.
SEF227Z
3. Disconnect ECM harness connector.
4. Disconnect TCM harness connector.
5. Check harness continuity between mass air ¯ow sensor terminal 3 and ECM terminal 50, TCM terminal 42. Refer to Wiring Dia-
gram.
Continuity should exist.
6. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 5.
NGcGO TO 4.
4 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E230, F12
+Harness connectors M51, F6
+Harness connectors E106, M88
+Harness for open or short between mass air ¯ow sensor and ECM
+Harness for open or short between mass air ¯ow sensor and TCM (Transmission control module)
cRepair open circuit or short to ground or short to power in harness or connectors.
5 CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between mass air ¯ow sensor terminal 4 and ECM terminal 35. Refer to Wiring Diagram.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 7.
NGcGO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E230, F12
+Harness for open or short between mass air ¯ow sensor and ECM
cRepair open circuit or short to ground or short to power in harness or connectors.
DTC 0102 MASS AIR FLOW SENZD30DDTi
Diagnostic Procedure (Cont'd)
EC-4051

7 CHECK SHIELD CIRCUIT
1. Disconnect harness connectors E230, F12.
2. Check harness continuity between harness connector F12 terminal 5 and ground.
Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to power.
OK or NG
OKcGO TO 9.
NGcGO TO 8.
8 DETECT MALFUNCTIONING PART
Check the following.
+Joint connector-4
+Harness for open or short between harness connector F12 and ground
cRepair open circuit or short to power in harness or connectors.
9 CHECK MASS AIR FLOW SENSOR
1. Reconnect harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Check voltage between ECM terminal 35 (Mass air ¯ow sensor signal) and ground.
SEF400YA
4. If the voltage is out of speci®cation, proceed the following.
a. Check for the cause of uneven air ¯ow through mass air ¯ow sensor. Refer to the following.
+Crushed air ducts
+Malfunctioning seal of air cleaner element
+Uneven dirt of air cleaner element
+Improper speci®cation of intake air system parts
b. If NG, repair or replace malfunctioning part and perform steps 2 to 4 again.
5. Turn ignition switch ªOFFº.
6. Disconnect MAFS harness connector and connect it again.
7. Perform steps 2 and 3 again.
OK or NG
OKcGO TO 10.
NGcReplace mass air ¯ow sensor.
10 CHECK INTERMITTENT INCIDENT
Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-107 in Service Manual (Publication No. SM9E-Y61CG3).
cINSPECTION END
DTC 0102 MASS AIR FLOW SENZD30DDTi
Diagnostic Procedure (Cont'd)
EC-4052

ELECTRICALSYSTEM
SECTION
EL
When you read wiring diagrams:
+ Read GI section, ªHOW TO READ WIRING DIAGRAMSº.
When you perform trouble diagnoses, read GI section, ªHOW TO FOLLOW FLOW
CHART IN TROUBLE DIAGNOSESº and ªHOW TO PERFORM EFFICIENT DIAGNOSIS
FOR AN ELECTRICAL INCIDENTº.
+ Check for any service bulletins before servicing the vehicle.
MODIFICATION NOTICE:
+ Wiring Diagrams have been changed.
CONTENTS
POWER SUPPLY ROUTING/WAGON AND
HARDTOP MODELS .................................................4005
Schematic ..............................................................4005
Wiring Diagram Ð POWER Ð..............................4006
GROUND DISTRIBUTION/WAGON AND
HARDTOP MODELS .................................................4016
Main Harness/LHD Models....................................4016
Main Harness/RHD Models ...................................4019
Engine Room Harness/LHD Models .....................4022
Engine Room Harness/RHD Models .....................4024
Body Harness/LHD Models ...................................4026
Body Harness/RHD Models...................................4028
Body No. 2 Harness/LHD Models .........................4030
Body No. 2 Harness/RHD Models.........................4031
Back Door and Rear Window Defogger Harness/
LHD Models ...........................................................4032
Back Door and Rear Window Defogger Harness/
RHD Models ..........................................................4033
COMBINATION SWITCH ...........................................4034
Check .....................................................................4034
STEERING SWITCH ..................................................4036
Check/RHD Models for Europe and LHD Models.4036
Check/RHD Models Except for Europe .................4038
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Conventional Type Ð ..........................................4040
Wiring Diagram Ð H/LAMP Ð ..............................4040
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Xenon Type Ð ......................................................4041
Bulb Replacement .................................................4041
Wiring Diagram Ð H/LAMP Ð ..............................4042 HEADLAMP/WAGON AND HARDTOP MODELS
Ð Headlamp Aiming Control Ð
.............................4044
Wiring Diagram Ð H/AIM Ð/Except for the
Middle East ............................................................4044
HEADLAMP/WAGON AND HARDTOP MODELS
Ð Daytime Light System Ð ....................................4047
Wiring Diagram Ð DTRL Ð ..................................4047
PARKING, LICENSE AND TAIL LAMPS/WAGON
AND HARDTOP MODELS ........................................4049
Wiring Diagram Ð TAIL/L Ð/Type A .....................4049
Wiring Diagram Ð TAIL/L Ð/Type B.....................4051
Wiring Diagram Ð TAIL/L Ð/Type C ....................4053
BACK-UP LAMP/WAGON AND HARDTOP
MODELS ....................................................................4055
Wiring Diagram Ð BACK/L Ð/LHD Models
Except TB48 Engine with A/T................................4055
Wiring Diagram Ð BACK/L Ð/LHD Models for
TB48 Engine with A/T ............................................4056
Wiring Diagram Ð BACK/L Ð/RHD Models
Except TB48 Engine with A/T................................4057
Wiring Diagram Ð BACK/L Ð/RHD Models
for TB48 Engine with A/T ......................................4058
STOP LAMP/WAGON AND HARDTOP MODELS ...4059
Wiring Diagram Ð STOP/L Ð/Type A ..................4059
Wiring Diagram Ð STOP/L Ð/Type B ..................4060
FRONT FOG LAMP/WAGON AND HARDTOP
MODELS ....................................................................4061
Wiring Diagram Ð F/FOG Ð/Except for Europe
and China ..............................................................4061
EL-4001