Nissan Juke Service and Repair Manual : C1142 press sensor

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

>> GO TO 2.

2.CHECK DTC DETECTION

1. Turn the ignition switch OFF to ON.With CONSULT-III.


1. Turn the ignition switch OFF to ON.

2. Perform self-diagnosis for “ABS”.

Is DTC “C1142” detected? YES >> Proceed to BRC-186, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

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

Check ABS actuator and electric unit (control unit) power supply system. Refer to BRC-205, "Diagnosis Procedure".

Is the inspection result normal? YES >> GO TO 2.

NO >> Repair or replace error-detected parts.

2.CHECK BRAKE FLUID LEACKAGE

Check brake fluid leakage.

• LHD: Refer to BR-12, "Inspection".

• RHD: Refer to BR-80, "Inspection".

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

NO >> Repair or replace error-detected parts.

3.CHECK CONNECTOR

1. Turn ignition switch OFF.

2. Check ABS actuator and electric unit (control unit) harness connector for disconnection or looseness.

3. Check ESP pressure sensor harness connector for disconnection or looseness.

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair or replace error-detected parts, securely lock the connector, and GO TO 4.

4.PERFORM SELF-DIAGNOSIS

Perform self-diagnosis for “ABS” again.

Is DTC“C1142” detected? YES >> GO TO 5.

NO >> INSPECTION END 5.CHECK ESP PRESSURE SENSOR CIRCUIT

1. Turn ignition switch OFF.

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

3. Disconnect ESP pressure sensor harness connector.

4. Check continuity between ESP pressure sensor harness connector and ABS actuator and electric unit (control unit) harness connecto

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 6.

NO >> Repair or replace error-detected parts.

6.CHECK ESP PRESSURE SENSOR POWER SUPPLY

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Turn the ignition switch ON.

CAUTION:
Never start the engine.

3. Check voltage ESP pressure sensor harness connector terminals.

Is the inspection result normal?


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

NO >> Replace ABS actuator and electric unit (control unit). Refer to BRC-233, "Removal and Installation".

7.CHECK ESP PRESSURESENSOR (1)

1. Turn ignition switch OFF.

2. Secure connect ESP pressure sensor harness connector.

3. Check loose connection with harness connector.

4. Turn ignition switch ON.

CAUTION:
Never start the engine.

5. In 1 second or more after ignition switch ON, check pressure sensor voltage.

NOTE:


NOTE:

Voltage changes according to the degree of the application of the brake pedal.

Is the inspection result normal? YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-233, "Removal and Installation".

NO >> Replace ESP pressure sensor.

• LHD: Refer to BR-24, "FRONT : Exploded View".

• RHD: Refer to BR-91, "FRONT : Exploded View".

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