Nissan Maxima Service and Repair Manual: C1143, C1144 steering angle sensor

Description

The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel, and transmits the data to the ABS actuator and electric unit (control unit) via CAN communication.

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.
  3. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals.
  4. Reconnect connector and perform self-diagnosis

2.CHECK STEERING ANGLE SENSOR HARNESS

Nissan Maxima. CHECK STEERING ANGLE SENSOR HARNESS

  1. Check CAN communication system. Refer to LAN-15, "Trouble Diagnosis Flow Chart".
  2. Turn ignition switch OFF.
  3. Disconnect steering angle sensor connector.
  4. Check continuity between steering angle sensor harness connector M53 terminal 1 and ground

Nissan Maxima. CHECK STEERING ANGLE SENSOR HARNESS

Nissan Maxima. CHECK STEERING ANGLE SENSOR HARNESS

  1. Turn ignition switch ON.
  2. Check voltage between steering angle sensor connector M53 terminal 4 and ground.

Nissan Maxima. CHECK STEERING ANGLE SENSOR HARNESS

3.CHECK DATA MONITOR

  1. Turn ignition switch OFF.
  2. Connect steering angle sensor connector and ABS actuator and electric unit (control unit) connector.
  3. Perform the steering angle sensor component inspection.

Component Inspection

1.CHECK DATA MONITOR

Select "STR ANGLE SIG" in "DATA MONITOR" and check steering angle sensor signal.

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).

    C1142 press sen circuit

    C1145, C1146 yaw rate/side/decel G sensor