Diff Lock Indicator Lamp Inoperative

DIFF LOCK INDICATOR LAMP INOPERATIVE

Inspection Procedure

SYMPTOM:
DIFF LOCK indicator lamp does not turn ON for approx. 1 second when turning ignition switch to "ON".

DIAGNOSTIC PROCEDURE


1. PERFORM DIFFERENTIAL LOCK CONTROL UNIT SELF DIAGNOSIS

Perform self-diagnosis. Scan Tool Testing and Procedures.
Were any DTCs displayed?
YES- Testing and Inspection.
NO- GO TO 2.

2. CHECK DIFFERENTIAL LOCK CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

Check the differential lock control unit for proper power and ground. P1833.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair harness or connector.

3. CHECK DIFF LOCK INDICATOR LAMP POWER SUPPLY

Check power supply to the combination meter (DIFF LOCK indicator lamp). Combination Meter.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair harness or connectors.

4. CHECK DIFF LOCK INDICATOR LAMP CONTROL

Check the DIFF LOCK indicator lamp control circuit. Component Tests and General Diagnostics.
Is the inspection result normal?
YES- Replace the differential lock control unit. Service and Repair.
NO- Repair malfunctioning component.