Nissan Maxima Service and Repair Manual: C1142 press sen circuit

Nissan Maxima Service and Repair Manual / Brakes / Brake control system / DTC/circuit diagnosis / C1142 press sen circuit

Description

The pressure sensor converts the brake fluid pressure to an electric signal and transmits it to the ABS actuator and electric unit (control unit). (The pressure sensor is integrated in the ABS actuator and electric unit (control unit).)

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.CHECK SELF-DIAGNOSIS RESULTS

Check the self-diagnosis results.

Nissan Maxima. CHECK SELF-DIAGNOSIS RESULTS

Diagnosis Procedure

1.CONNECTOR INSPECTION

  1. Turn ignition switch OFF.
  2. Disconnect ABS actuator and electric unit (control unit) connector and stop lamp switch connector.
  3. Check terminals for deformation, disconnection, looseness and damage. If any malfunction is found, repair or replace terminals.
  4. Reconnect connectors securely.
  5. Start engine.
  6. Pump brake pedal carefully several times, and perform self-diagnosis.

2.CHECK STOP LAMP SWITCH

Nissan Maxima. CHECK STOP LAMP SWITCH

  1. Turn ignition switch OFF.
  2. Disconnect stop lamp switch connector.
  3. Check continuity between stop lamp switch terminals 3 and 4.

Nissan Maxima. CHECK STOP LAMP SWITCH

3.CHECK STOP LAMP SWITCH CIRCUIT

Nissan Maxima. CHECK STOP LAMP SWITCH CIRCUIT

  1. Disconnect ABS actuator and electric unit (control unit) connector.
  2. Connect stop lamp switch connector.
  3. Check voltage between ABS actuator and electric unit (control unit) connector E26 terminal 20 and ground.

Nissan Maxima. CHECK STOP LAMP SWITCH CIRCUIT

4.CHECK SELF-DIAGNOSIS RESULTS

Check self-diagnosis results.

Nissan Maxima. CHECK SELF-DIAGNOSIS RESULTS

Component Inspection

1.CHECK DATA MONITOR

On "DATA MONITOR", select "PRESS SENSOR" and check the brake fluid pressure.

Nissan Maxima. CHECK DATA MONITOR

Special Repair Requirement

1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION

Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit).

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