Nissan Juke Service and Repair Manual : Power supply and ground circuit
Diagnosis Procedure
1.INSPECTION START
Start engine.
Is engine running? YES >> GO TO 6.
NO >> GO TO 2.
2.CHECK GROUND CONNECTION-I
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground Inspection in GI-44, "Circuit Inspection".
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace ground connection.
3.CHECK ECM POWER SUPPLY CIRCUIT-I
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M77, E105
• 10A fuse (No. 2)
• Harness for open or short between ECM and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-I
1. Disconnect ECM harness connectors.
2. Check the continuity between ECM harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair open circuit or short to power in harness or connectors.
6.CHECK ECM POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Check the voltage between ECM harness connector and ground.
Is the inspection result normal? YES >> GO TO 13.
NO-1 >> Battery voltage does not exist: GO TO 7.
NO-2 >> Battery voltage exists for more than a few seconds: GO TO 10.
7.CHECK ECM POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Check the voltage between ECM harness connector and ground.
Is the inspection result normal? YES >> GO TO 8.
NO >> GO TO 10.
8.CHECK ECM POWER SUPPLY CIRCUIT-IV
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 15.
NO >> GO TO 9.
9.DETECT MALFUNCTIONING PART
Check the following.
• Harness or connectors E8, F1 • Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
10.CHECK ECM POWER SUPPLY CIRCUIT-V
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 12.
NO >> GO TO 11.
11.DETECT MALFUNCTIONING PART
Check the following.
• Harness or connectors E8, F1 • Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
12.CHECK 20A FUSE
1. Disconnect 20A fuse (No. 43) from IPDM E/R.
2. Check 20A fuse.
Is the inspection result normal? YES >> GO TO 15.
NO >> Replace 20A fuse.
13.CHECK GROUND CONNECTION-II
1. Turn ignition switch OFF.
2. Check ground connection E38. Refer to Ground Inspection in GI-44, "Circuit Inspection".
Is the inspection result normal? YES >> GO TO 14.
NO >> Repair or replace ground connection.
14.CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect ECM harness connector.
2. Check the continuity between ECM harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal? YES >> GO TO 15.
NO >> Repair open circuit or short power in harness or connectors.
15.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident", ???INCIDENT SIMULATION TESTS??? and ???GROUND INSPECTION???.
Is the inspection result normal? YES >> Replace IPDM E/R.
NO >> Repair open circuit or short to power in harness or connectors.
P0001 fuel pump
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0001 is displayed with DTC P0560 or P0657, first perform trouble
diagnosis for DTC P0560 or P0657.
Refer to EC-963, "DTC Logic" (DTC P05 ...
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