2001 NISSAN PICK-UP fuse diagram

DIAGNOSTIC PROCEDURE=NEEC0049
1 INSPECTION START
Start engine.
Is engine running?
YesorNo
Ye s©GO TO 9.
No©GO TO 2.
2 CHECK POWER SUPPLY-I
1. Turn ignition switch OFF and then ON.
2. Check voltage between ECM terminal 24 and ground with CONSULT-II or tester.
SEF600P
Voltage: Battery voltage
OK or NG
OK©GO TO 4.
NG©GO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
+40A fusible link
+Harness connectors E101, M5
+Ignition switch
+Fuse block M10, M12
+10A fuse
+Harness for open or short between ECM and battery
©Repair harness or connectors.
4 CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals 10, 19, 25, 32, 116, 124 and engine ground.
Refer to WIRING DIAGRAM.
Continuity should exist.
4. Also check harness for short to power.
OK or NG
OK©GO TO 5.
NG©Repair open circuit or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER
SUPPLY
KA24DE (EURO OBD)
Main Power Supply and Ground Circuit
EC-3127

5 CHECK POWER SUPPLY-II
1. Disconnect ECM relay.
LEC106A
2. Check voltage between ECM relay terminals 1, 3 and ground with CONSULT-II or tester.
SEC313D
Voltage: Battery voltage
OK or NG
OK©GO TO 7.
NG©GO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
+10A fuse
+Harness for open or short between ECM relay and battery
©Repair open circuit or short to ground or short to power in harness or connectors.
7 CHECK OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 4 and ECM relay terminal 2. Refer to WIRING DIAGRAM.
Continuity should exist.
2. Also check harness for short to ground and short to power.
OK or NG
OK©Go to ªIGNITION SIGNALº, EC-3361.
NG©GO TO 8.
8 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E101, M5
+Harness for open or short between ECM relay and ECM
©Repair open circuit or short to ground or short to power in harness or connectors.
TROUBLE DIAGNOSIS FOR POWER
SUPPLY
KA24DE (EURO OBD)
Main Power Supply and Ground Circuit
EC-3128

Diagnostic ProcedureNEEC1600
1 CHECK POWER SUPPLY
1. Stop engine.
2. Disconnect IACV-AAC valve harness connector.
SEF342V
3. Turn ignition switch ON.
4. Check voltage between terminal 2 and ground with CONSULT-II or tester.
SEC271D
Voltage: Battery voltage
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
+10A fuse
+Harness for open or short between IACV-AAC valve and 10A fuse
©Repair harness or connectors.
3 CHECK OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 101 and terminal 1. Refer to wiring diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 4.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0505 ISC SYSTEMKA24DE (EURO OBD)
Diagnostic Procedure
EC-3299

4 CHECK POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect ignition coil harness connector.
SEC276D
3. Turn ignition switch ON.
4. Check voltage between terminal 7 and ground with CONSULT-II or tester.
AEC698
Voltage: Battery voltage
OK or NG
OK©GO TO 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors E101, M5
+Harness for open or short between ignition coil and ECM relay
+Harness for open or short between ECM relay and fuse
©Repair harness or connectors.
6 CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power transistor harness connector.
3. Check harness continuity between power transistor terminal 2 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to power.
OK or NG
OK©GO TO 7.
NG©Repair open circuit or short to power in harness or connectors.
IGNITION SIGNALKA24DE (EURO OBD)
Diagnostic Procedure
EC-3366

2 CHECK POWER SUPPLY
1. Stop engine.
2. Disconnect injector harness connector.
3. Turn ignition switch ON.
4. Check voltage between injector terminal 2 and ground with CONSULT-II or tester.
SEC277D
Voltage: Battery voltage
OK or NG
OK©GO TO 4.
NG©GO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
+10A fuse
+Harness for open or short between injector and fuse
©Repair harness or connectors.
4 CHECK OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between injector terminal 1 and ECM terminals 102, 104, 109, 111. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the harness for open or short between ECM and injector.
©Repair open circuit or short to ground or short to power in harness or connectors.
INJECTORKA24DE (EURO OBD)
Diagnostic Procedure
EC-3372

4 DETECT MALFUNCTIONING PART
Check the following.
+40A fuse
+Harness connectors E101, M5
+Harness for open or short between ignition switch and 40A fuse
OK or NG
OK©GO TO 5.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
5 CHECK INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector and ignition switch.
3. Check harness continuity between ECM terminal 20 and ignition switch terminal 6. Refer to wiring diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 7.
NG©GO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
+Fuse block connectors M10, M12
+Harness for open or short between ECM and ignition switch
OK or NG
OK©GO TO 7.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
7 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-3123.
©INSPECTION END
START SIGNALKA24DE (EURO OBD)
Diagnostic Procedure
EC-3377

3 DETECT MALFUNCTIONING PART
Check the following.
+15A fuse
+Harness for open or short between fuse and fuel pump relay
©Repair harness or connectors.
4 CHECK FUEL PUMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuel level sensor unit and fuel pump harness connector.
SEF334VA
3. Check harness continuity between fuel pump terminal 4 and body ground, fuel pump terminal 2 and fuel pump relay
terminal 3. Refer to wiring diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 6.
NG©GO TO 5.
5 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors M121, C9
+Harness for open or short between fuel pump and body ground
+Harness for open or short between fuel pump and fuel pump relay
©Repair open circuit or short to ground or short to power in harness or connectors.
6 CHECK OUTPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 11 or (14)* and fuel pump relay terminal 1. Refer to wiring diagram.
*: Model with NATS (Nissan Anti-Theft System)
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 8.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
FUEL PUMPKA24DE (EURO OBD)
Diagnostic Procedure
EC-3382

DIAGNOSTIC PROCEDURE
1 INSPECTION START
Start engine.
Is engine running?
Yes or No
YescGO TO 14.
NocGO TO 2.
2 CHECK ECM POWER SUPPLY CIRCUIT-I
1. Turn ignition switch ªONº.
2. Check voltage between ECM terminal 38 and ground with CONSULT-II or tester.
SEF397Y
OK or NG
OKcGO TO 4.
NGcGO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors M47, F55 (RHD models)
+Fuse block (J/B) connector M10, M12
+10A fuse
+Harness for open or short between ECM and fuse
cRepair open circuit or short to ground or short to power in harness or connectors.
4 CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminals 39, 43, 106, 112, 118 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OKcGO TO 6.
NGcGO TO 5.
TROUBLE DIAGNOSIS FOR POWER SUPPLYYD25DDTi
Main Power Supply and Ground Circuit
(Cont'd)
EC-3475