Nissan Maxima Service and Repair Manual: C1115 ABS sensor [abnormal signal]

Nissan Maxima Service and Repair Manual / Brakes / Brake control system / DTC/circuit diagnosis / C1115 ABS sensor [abnormal signal]

Description

When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current signals (rectangular wave) and transmits them to 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

CAUTION: Do not check between wheel sensor terminals.

1.CONNECTOR INSPECTION

  1. Disconnect ABS actuator and electric unit (control unit) connector and wheel sensor of malfunctioning code.
  2. Check terminals for deformation, disconnection, looseness or damage.

2.CHECK WHEEL SENSOR OUTPUT SIGNAL

  1. Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.
  2. Turn on the ABS active wheel sensor tester power switch. NOTE: The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.
  3. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal. NOTE: If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

3.CHECK TIRES

Check the inflation pressure, wear and size of each tire.

4.CHECK WHEEL BEARINGS

Check wheel bearing axial end play

5.CHECK WIRING HARNESS FOR SHORT CIRCUIT

  1. Disconnect ABS actuator and electric unit (control unit) connector and wheel sensor of malfunctioning code.
  2. Check continuity between front wheel sensor connector terminals (A), rear wheel sensor connector terminals (B) and ground

Nissan Maxima. CHECK WIRING HARNESS FOR SHORT CIRCUIT

: Continuity should not exist.

6.CHECK WIRING HARNESS FOR OPEN CIRCUIT

Check continuity between ABS actuator and electric unit (control unit) connector and the malfunctioning wheel sensor connector.

Nissan Maxima. CHECK WIRING HARNESS FOR OPEN CIRCUIT

Component Inspection

1.CHECK DATA MONITOR

On "DATA MONITOR", select "FR LH SENSOR", "FR RH SENSOR", "RR LH SENSOR", and "RR RH SENSOR", and check the vehicle speed.

Nissan Maxima. CHECK DATA MONITOR

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).

    C1114 main relay
    Description Activates or deactivates each solenoid valve according to the signals transmitted by the ABS actuator and electric unit (control unit). DTC Logic DTC DETECTION LOGIC DTC CONFIR ...

    C1116 stop lamp SW
    Description The stop lamp switch transmits the stop lamp switch signal (ON/OFF) to the ABS actuator and electric unit (control unit). DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDU ...

    Other materials:

    U1000 CAN comm circuit
    Description CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each ...

    Steering switch
    Description When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio control switch circuit changes, depending on which button is pushed. Diagnosis Procedure 1.CHECK STEERING SWITCH RESISTANCE Disconnect steering switch connector M88. ...

    Front wiper motor lo circuit
    Component Function Check 1. CHECK FRONT WIPER LO OPERATION IPDM E/R AUTO ACTIVE TEST Start IPDM E/R auto active test. Refer to PCS-11, "Diagnosis Description". Check that the front wiper operates at the LO operation. CONSULT ACTIVE TEST Select "FRONT WIPER" of IPDM E/R active test ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2026 Copyright www.nimainfo.com
    0.0056