Nissan Sentra Service Manual: C1111 PUMP MOTOR

Nissan Sentra Service Manual / Brakes / Brake control system / Dtc/circuit diagnosis / 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

Turn ignition switch OFF.
Depress brake pedal 20 times or more.
Start the engine and wait for 3 minutes or more.
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

Turn ignition switch OFF.
Disconnect ABS actuator and electric unit (control unit) connectors.
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.

1110, C1170 ABS Actuator and electric unit (control unit)

DTC Logic DTC DETECTION LOGIC DTC Display item Malfunction detected condition Possible cause C1110 CONTROLLER FAILURE When there is an internal malfunction in the ABS ...

C1113, C1145, C1146 Yaw rate/side/decel G Sensor

DTC Logic DTC DETECTION LOGIC DTC Display Item Malfunction detected condition Possible causes C1113 G SENSOR When a malfunction is detected in longitunal G sensor s ...

Other materials:

Periodic maintenance
REAR WHEEL HUB Inspection COMPONENT PART Check the mounting conditions (looseness, back lash) of each component and component conditions (wear, damage) are normal. WHEEL HUB ASSEMBLY (BEARING-INTEGRATED TYPE) Check the following items, and replace the part it necessary. Move wheel hub as ...

C1113, C1145, C1146 Yaw rate/side/decel G Sensor
DTC Logic DTC DETECTION LOGIC DTC Display Item Malfunction detected condition Possible causes C1113 G SENSOR When a malfunction is detected in longitunal G sensor signal. ABS actuator and electric unit (control unit) C1145 YAW RATE ...

Basic inspection
Diagnosis and repair work flow Work Flow Overall sequence Detailed flow 1. Get information for symptom Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). >> Go to 2. 2. Check dtc Check ...