Rear Door Control Unit (LH or RH) Circuit Check

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Check Power Supply Circuit
1. Turn ignition switch OFF.
2. Disconnect rear door control unit connector.
3. Check voltage between rear door control unit LH or RH connector D58 or D78 terminal 10 and ground.
  1. 10 (Y/B) - Ground: Battery voltage
OK or NG
1. OK: Go to 2.
2. NG: Check the following:
  - 40A fusible link (letter H, located in fuse and fusible link box).
  - Harness for open or short between rear control unit LH or RH and fuse.
Fig 1: Checking Power Supply Signal
Courtesy of NISSAN MOTOR CO., U.S.A.
Check Ground Circuit

Fig 2: Checking Ground Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.

Check continuity between rear door control unit LH or RH connector D58 or D78 terminal 11 and ground.
1. 11 (B) - Ground: Continuity should exist.
OK or NG
1. OK: Inspection end
2. NG: Repair or replace harness.