Nissan Juke Service and Repair Manual : Power supply and ground circuit

Diagnosis Procedure

1.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY

1. Turn the ignition switch OFF.

2. Disconnect ABS actuator and electric unit (control unit) harness connector.

3. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.

4. Turn the ignition switch ON


4. Turn the ignition switch ON CAUTION:
Never start engine

.

5. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.

2. Check 10 A fuse (#57).

3. Disconnect IPDM E/R harness connector.

4. Check continuity between ABS actuator and electric unit (control unit) harness connector and IPDM E/R harness connector

5. Check for continuity between ABS actuator and electric unit (control unit)


5. Check for continuity between ABS actuator and electric unit (control unit) harness connector and the ground.

Is the inspection result normal?


Is the inspection result normal? YES >> Perform trouble diagnosis for ignition power supply. Refer to PG-15, "Wiring Diagram - IGNITION POWER SUPPLY -".

NO >> Repair or replace error-detected parts.

3.CHECK MOTOR AND MOTOR RELAY POWER SUPPLY

1. Turn the ignition switch OFF.

2. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.

3. Turn the ignition switch ON.


3. Turn the ignition switch ON.

CAUTION:
Never start engine.

4. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 5.

NO >> GO TO 4.

4.CHECK MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.

2. Check 30 A fusible link (K).

3. Check continuity and short circuit between ABS actuator and electric unit (control unit) harness connector terminal (1) and 30 A fusible link (K).

Is the inspection result normal? YES >> Perform trouble diagnosis for battery power supply. Refer to PG-10, "Wiring Diagram - BATTERY POWER SUPPLY -".

NO >> Repair or replace error-detected parts.

5.CHECK ACTUATOR RELAY, ABS IN VALVE, ABS OUT VALVE POWER SUPPLY

1. Turn the ignition switch OFF.

2. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.

3. Turn the ignition switch ON


3. Turn the ignition switch ON CAUTION:
Never start engine.

4. Check voltage between ABS actuator and electric unit (control unit) harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 7.

NO >> GO TO 6.

6.CHECK ACTUATOR RELAY, ABS IN VALVE, ABS OUT VALVE POWER SUPPLY CIRCUIT

1. Turn the ignition switch OFF.

2. Check 50 A fusible link (I).

3. Check continuity and short circuit between ABS actuator and electric unit (control unit) harness connector terminal (2) and 50 A fusible link (I).

Is the inspection result normal? YES >> Perform trouble diagnosis for battery power supply. Refer to PG-10, "Wiring Diagram - BATTERY POWER SUPPLY -".

NO >> Repair or replace error-detected parts.

7.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

Check for continuity between ABS actuator and electric unit (control unit) harness connector and the ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 8.

NO >> Repair or replace error-detected parts.

8.CHECK TERMINAL

• Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector.

• Check IPDM E/R pin terminals for damage or loose connection with harness connector.

Is the inspection result normal? YES >> INSPECTION END

NO >> Repair or replace error-detected parts.

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