Check IPDM E/R Operation

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK IPDM E/R INPUT SIGNAL
Check voltage between IPDM E/R harness connector E9 terminal 51 and ground.

51 (G/B) - Ground: Battery voltage

OK or NG

OK: Replace IPDM E/R.

NG: GO TO 2.

Fig 1: Identifying Voltage Between IPDM E/R Harness Connector E9 Terminal 51 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK IPDM E/R CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay connector.
3. Check continuity between IPDM E/R harness connector E9 terminal 51 and horn relay harness connector E20 terminal 1.
  51 (G/B) - 1 (G/B): Continuity should exist .
OK or NG

OK: Check harness connection.

NG: Repair or replace harness.

Fig 2: Identifying Continuity Between IPDM E/R Connector E9 Terminal 51 And Horn Relay Connector E20 Terminal 1
Courtesy of NISSAN MOTOR CO., U.S.A.