Sunroof Motor Assembly Power Supply and Ground Circuit Check

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK POWER SUPPLY CIRCUIT-1
1. Turn ignition switch ON.
2. Check voltage between sunroof motor assembly connector R4 terminal 5 and ground.
  
  Fig 1: Checking Voltage Between Sunroof Motor Assembly Connector R4 Terminal 5 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  5 (W/R) - Ground: Battery voltage
OK or NG
- OK: GO TO 2.
- NG:
  - Check harness for open or short between sunroof motor assembly and BCM.
  - Check BCM. Refer to BCM POWER SUPPLY AND GROUND CIRCUIT CHECK .
CHECK POWER SUPPLY CIRCUIT-2
Check voltage between sunroof motor assembly connector R4 terminal 1 and ground.

Fig 2: Checking Voltage Between Sunroof Motor Assembly Connector R4 Terminal 1 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Sunroof Motor Assembly Connector R4 Terminal Voltage Specification Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK: GO TO 3.
- NG:
  - Check harness for open or short between sunroof motor assembly and BCM.
  - Check front door switch LH or RH. Refer to DOOR SWITCH CHECK .
  - Check BCM. Refer to BCM POWER SUPPLY AND GROUND CIRCUIT CHECK .
CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly connector.
3. Check continuity between sunroof motor assembly connector R4 terminal 7 and ground.
  
  Fig 4: Checking Continuity Between Sunroof Motor Assembly Connector R4 Terminal 7 & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  7 (B/W) - Ground: Continuity should exist.
OK or NG
- OK: Sunroof motor assembly power supply and ground circuits are OK.
- NG: Repair or replace harness.