Nissan Murano: Dtc/circuit Diagnosis / P062f Eeprom

DTC Description

TCM compares the calculated value stored in the flash ROM with the value stored in TCM. If the calculated value does not agree with the stored value, TCM judges this as a malfunction.

DTC DETECTION LOGIC

Flash ROM error is detected when turning ON the ignition switch.

POSSIBLE CAUSE

• TCM (Flash ROM)

• Harness or connector [TCM power supply (back-up) circuit is open or shorted]

FAIL-SAFE

Not changed from normal driving

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

GO TO 2.

CHECK DTC DETECTION

1. Start the engine.

2. Check the DTC.

Is “P062F” detected?

Go to Diagnosis Procedure.

To check malfunction symptom before repair: Refer to Intermittent Incident.

Confirmation after repair: INSPECTION END

CHECK TCM BATTERY POWER SUPPLY (BACK-UP) CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect TCM connector.

3. Turn ignition switch ON.

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

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

Is the inspection result normal?

GO TO 2.

Repair or replace malfunctioning parts.

DETECT MALFUNCTIONING ITEMS

Check the following items:

• Open or short circuit of harness between battery positive terminal and TCM connector terminals 45, and 46.

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

Is the inspection result normal?

GO TO 3.

Repair or replace malfunctioning parts.

CHECK INTERMITTENT INCIDNT

Refer to Intermittent Incident.

Is the inspection result normal?

Replace the TCM. Refer to Removal and Installation.

Repair or replace malfunctioning parts.