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 column covers
    Removal and Installation MANUAL TILT Removal Remove the steering column cover screw finishers (1) and then remove the screws. Remove the steering column upper cover (2). Remove the steering column lower cover screw and then remove the steering column lower cover (3). Installatio ...

    Squeak and rattle trouble diagnoses
    Work Flow CUSTOMER INTERVIEW Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diagnostic Worksheet during the interview to document the facts and conditions when the noise occurs and any customer's comments; refer to SE-56, "Diagno ...

    Warning lights
    For additional information on warnings and indicators, refer to "Vehicle information display" in this section. Anti-lock Braking System (ABS) warning light When the ignition switch is placed in the ON position, the ABS warning light illuminates and then turns off. This indicates the ABS is o ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0052