Diagnosis Procedure

1. Turn ignition switch ON.
2. Check voltage between IPDM E/R harness connector and ground under the following conditions.

   (+)		(-)	Condition		Voltage
   IPDM E/R
   Connector	Terminal
   E46	37	Ground	Ignition switch OFF		0 - 1 V
   			Ignition switch ON	Selector lever P or N
   				Selector lever in any position other than P or N	Battery voltage
   			Engine running

Is the inspection result normal?

YES

GO TO 3 .

NO

GO TO 2 .

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Disconnect ECM connector.
4. Check continuity between IPDM E/R harness connector and ECM harness connector.

   IPDM E/R		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   E46	37	E16	101	Yes

5. Check continuity between IPDM E/R harness connector and ground.

   IPDM E/R		Ground	Continuity
   Connector	Terminal
   E46	37		No

Is the inspection result normal?

YES

GO TO 3 .

NO

Repair or replace harness.

1. Replace IPDM E/R. Refer to Removal and Installation .
2. Perform DTC CONFIRMATION PROCEDURE for DTC B209F. Refer to DTC Logic .

Is DTC detected?

YES

GO TO 4 .

NO

Inspection End.

Replace ECM.

Refer to Removal and Installation .

Inspection End.