Nissan Maxima Service and Repair Manual: U1243 display unit

DTC Logic

Nissan Maxima. U1243 DISPLAY UNIT

Diagnosis Procedure

1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT

Check display unit power supply and ground circuit

2.CHECK CONTINUITY OF COMMUNICATION CIRCUIT

Nissan Maxima. CHECK CONTINUITY OF COMMUNICATION CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect display unit connector M142 and AV control unit connector M163.
  3. Check continuity between display unit harness connector M142 (A) terminals 9, 10 and AV control unit harness connector M163 (B) terminals 45 and 61
  4. Check continuity between display unit harness connector M142 (A) terminals 9, 10 and ground.

Nissan Maxima. CHECK CONTINUITY OF COMMUNICATION CIRCUIT

Nissan Maxima. CHECK CONTINUITY OF COMMUNICATION CIRCUIT

3.CHECK COMMUNICATION SIGNAL

Nissan Maxima. CHECK COMMUNICATION SIGNAL

  1. Connect display unit connector and AV control unit connector.
  2. Turn ignition switch ON.
  3. Check signal between display unit harness connector M142 terminal 9 and ground with an oscilloscope or CONSULT

Nissan Maxima. CHECK COMMUNICATION SIGNAL

4.CHECK COMMUNICATION SIGNAL

Nissan Maxima. CHECK COMMUNICATION SIGNAL

Check signal between display unit harness connector M142 terminal 10 and ground with an oscilloscope or CONSULT.

Nissan Maxima. CHECK COMMUNICATION SIGNAL

    U1232 steering angle sensor
    DTC Logic Diagnosis Procedure 1.ADJUST THE PREDICTIVE COURSE LINE CENTER POSITION OF THE STEERING ANGLE SENSOR When U1232 is detected, adjust the predictive course line center position of t ...

    U1244 GPS antenna
    DTC Logic Diagnosis Procedure 1.GPS ANTENNA CHECK Inspect GPS antenna and antenna feeder for damage or poor connection. 2.CHECK AV CONTROL UNIT VOLTAGE Turn ignition switch ON. Check ...

    Other materials:

    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. ...

    Protect your vehicle from corrosion
    Wash and wax your vehicle often to keep the vehicle clean. Always check for minor damage to the paint and repair it as soon as possible. Keep drain holes at the bottom of the doors open to avoid water accumulation. Check the underbody for accumulation of sand, dirt or salt. If prese ...

    P1574 ASCD vehicle speed sensor
    Description The ECM receives two vehicle speed signals via the CAN communication line. One is sent from combination meter, and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD control. Refer to EC-68, "System Diagram" for ASCD functions. D ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0081