Nissan Maxima Service and Repair Manual: Communication signal circuit

Nissan Maxima Service and Repair Manual / Body exterior, doors, roof & vehicle security / Roof / DTC/circuit diagnosis / Communication signal circuit

Description

Detects door open/close condition.

Diagnosis Procedure

1.CHECK FRONT DOOR SWITCH INPUT SIGNAL

  1. Turn ignition switch OFF.
  2. Disconnect sunshade motor assembly connector.
  3. Turn ignition switch ON.
  4. Check signal between sunshade motor assembly harness connector and ground with oscilloscope.

Nissan Maxima. CHECK FRONT DOOR SWITCH INPUT SIGNAL

2.CHECK COMMUNICATION SIGNAL CIRCUIT

Nissan Maxima. .CHECK COMMUNICATION SIGNAL CIRCUIT

Nissan Maxima. .CHECK COMMUNICATION SIGNAL CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect sunroof motor assembly connector.
  3. Check continuity between sunshade motor assembly harness connector (A) and sunroof motor assembly harness connector (B).
  4. Check continuity between sunshade motor assembly harness connector and ground.

    Power supply and ground circuit

    Sunroof switch