Nissan Sentra manuals

Nissan Sentra Service Manual: C1111 PUMP MOTOR

DTC Logic

DTC DETECTION LOGIC

DTC

Display Item

Malfunction detected condition

Possible causes

C1111 PUMP MOTOR
  • When a malfunction is detected in motor or motor relay.
  • When a low pressure malfunction is detected in accumulator.
  • When a malfunction is detected in accumulator pressure sensor.
  • Harness or connector
  • ABS actuator and electric unit (control unit)
  • Fusible link
  • Battery power supply system
  • Motor/accumulator assembly

DTC CONFIRMATION PROCEDURE

1.CHECK SELF DIAGNOSTIC RESULT

With CONSULT


  1. Turn ignition switch OFF.

  2. Depress brake pedal 20 times or more.

  3. Start the engine and wait for 3 minutes or more.

  4. Perform self diagnostic result.

Is DTC C1111 detected? YES >> Proceed to diagnosis procedure. Refer to BRC-65, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis Procedure

Regarding Wiring Diagram information, refer to BRC-44, "Wiring Diagram".

1.CONNECTOR INSPECTION

  1. Turn ignition switch OFF.

  2. Disconnect ABS actuator and electric unit (control unit) connectors.

  3. Check connectors and terminals for deformation, disconnection, looseness or damage.

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

NO >> Repair or replace as necessary.

2.Check abs motor and motor relay battery power supply

Check voltage between ABS actuator and electric unit (control unit) connector E33 terminal 1 and ground.

Is the inspection result normal?


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

NO >> Repair or replace malfunctioning components.

3.Check ABS Actuator and electric unit (control unit) ground circuit

Check continuity between ABS actuator and electric unit (control unit) connector E33 terminals 13, 38 and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC-110, "Removal and Installation".

NO >> Repair or replace malfunctioning components.

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