IPDM E/R Power/Ground Circuit Inspection

WARNING: This page is about a different car, the 2005 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

Check fuse and fusible link .
Make sure the following fusible links or IPDM E/R fuses are not blown.

Fig 1: Identifying Fuses & Fusible Links
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: GO TO 2.
2. NG: If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new one.
Check power supply circuit .
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E3.
3. Check voltage between IPDM E/R harness connector E3 terminals 1 (W/R), 2 (W/L) and ground.
  
  Fig 2: Checking Voltage At IPDM E/R Harness Connector Terminals
  Courtesy of NISSAN MOTOR CO., U.S.A.
  1. 1, 2 - Ground: Battery voltage
  OK or NG
  1. OK: GO TO 3.
  2. NG: Replace IPDM E/R power supply circuit harness.
Check ground circuit .
1. Disconnect IPDM E/R harness connectors E8 and E9.
2. Check continuity between IPDM E/R harness connectors E8 terminal 38 (B), E9 terminal 50 (B), 60 (B) and ground.
  
  Fig 3: Checking Ground Circuit Continuity At IPDM E/R Connectors
  Courtesy of NISSAN MOTOR CO., U.S.A.
  1. 38, 50, 60 - Ground: Continuity should exist .
OK or NG
1. OK: INSPECTION END
2. NG: Replace ground circuit harness of IPDM E/R.