Nissan Maxima Service and Repair Manual: Power supply and ground circuit

BCM

BCM : Diagnosis Proce

1. CHECK FUSE AND FUSIBLE LINK

Check if the following BCM fuses or fusible link are blow

Nissan Maxima. CHECK FUSE AND FUSIBLE LINK

2. CHECK POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect BCM.
  3. Check voltage between BCM harness connector and ground.

Nissan Maxima. CHECK POWER SUPPLY CIRCUIT

3. CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Nissan Maxima. CHECK GROUND CIRCUIT

SUNROOF MOTOR ASSEMBLY

SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure

1.CHECK POWER SUPPLY

Nissan Maxima. CHECK POWER SUPPLY

  1. Turn ignition switch OFF.
  2. Disconnect sunroof motor assembly connector.
  3. Turn ignition switch ON.
  4. Check voltage between sunroof motor assembly harness connector and ground.

Nissan Maxima. CHECK POWER SUPPLY

2.CHECK GROUND CIRCUIT

Nissan Maxima. .CHECK GROUND CIRCUIT

  1. Turn ignition switch OFF.
  2. Check continuity between sunroof motor assembly harness connector and ground.

Nissan Maxima. .CHECK GROUND CIRCUIT

3.CHECK SUNROOF MOTOR CIRCUIT

Nissan Maxima. CHECK SUNROOF MOTOR CIRCUIT

Nissan Maxima. CHECK SUNROOF MOTOR CIRCUIT

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

Nissan Maxima. CHECK SUNROOF MOTOR CIRCUIT

Nissan Maxima. CHECK SUNROOF MOTOR CIRCUIT

4.CHECK INTERMITTENT INCIDENT

SUNSHADE MOTOR ASSEMBLY

SUNSHADE MOTOR ASSEMBLY : Diagnosis Procedure

1.CHECK POWER SUPPLY

Nissan Maxima. CHECK POWER SUPPLY

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

Nissan Maxima. CHECK POWER SUPPLY

2.CHECK GROUND CIRCUIT

Nissan Maxima. CHECK GROUND CIRCUIT

  1. Turn ignition switch OFF.
  2. Check continuity between sunshade motor assembly harness connector and ground.

Nissan Maxima. CHECK GROUND CIRCUIT

3.CHECK SUNSHADE MOTOR CIRCUIT

Nissan Maxima. CHECK SUNSHADE MOTOR CIRCUIT

Nissan Maxima. CHECK SUNSHADE MOTOR CIRCUIT

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

Nissan Maxima. CHECK SUNSHADE MOTOR CIRCUIT

Nissan Maxima. CHECK SUNSHADE MOTOR CIRCUIT

4.CHECK INTERMITTENT INCIDENT

    DTC/circuit diagnosis

    Communication signal circuit