Nissan Murano: Dtc/circuit Diagnosis / Main Power Supply and Ground Circuit

Diagnosis Procedure

CHECK TCM POWER CIRCUIT (PART 1)

1. Turn ignition switch OFF.

2. Disconnect TCM connector.

3. Check voltage between TCM harness connector terminals and ground.

   +		−	Voltage
   TCM
   Connector	Terminal
   F25	45	Ground	10 – 16 V
   	46

Is the inspection result normal?

GO TO 2.

GO TO 4.

CHECK TCM POWER CIRCUIT (PART 2)

Check voltage between TCM harness connector terminals and ground.

Is the inspection result normal?

GO TO 3.

GO TO 5.

CHECK TCM GROUND CIRCUIT

Check continuity between TCM harness connector terminals and ground.

Is the inspection result normal?

Check intermittent incident. Refer to Intermittent Incident.

Repair or replace malfunctioning parts.

DETECT MALFUNCTION ITEMS (PART 1)

Check the following items:

• Open or short circuit in harness between battery positive terminal and fuse block (J/B). Refer to Wiring Diagram - IGNITION POWER SUPPLY -.

• Open or short circuit in harness between fuse block (J/B) connector terminal 2N and TCM harness connector terminal 45, and 46.

• 10A fuse [No.25, located in the fuse block (J/B)]. Refer to Terminal Arrangement.

Is the inspection result normal?

Check intermittent incident. Refer to Intermittent Incident.

Repair or replace malfunctioning parts.

DETECT MALFUNCTIONING ITEMS (PART 2)

Check the following items:

• Open or short circuit in harness between ignition switch and IPDM E/R. Refer to Wiring Diagram - IGNITION POWER SUPPLY -.

• Open or short circuit in harness between IPDM E/R connector terminal 61 and TCM harness connector terminal 47, and 48.

• 10A fuse (No.43, located in the IPDM E/R). Refer to IPDM E/R Terminal Arrangement .

• IPDM E/R

Is the check result normal?

Check intermittent incident. Refer to Intermittent Incident.

Repair or replace malfunctioning parts.