No.1 4WD LOCK INDICATOR LIGHT ILLUMINATED CONTINUOUSLY (4WD SYSTEM OPERATES NORMALLY)

id030300800700

Possible Cause

• Malfunction in the 4WD lock indicator light control circuit

― 4WD lock switch malfunction

― Instrument cluster malfunction

― Short to power supply in 4WD lock indicator light wiring harness

― Short to power supply in 4WD lock switch wiring harness

Diagnostic Procedure

STEP

INSPECTION

ACTION

1

INSPECT 4WD SWITCH

•  Inspect the 4WD lock switch.

•  Is the 4WD lock switch normal?

Yes

Go to the next step.

No

Replace the 4WD lock switch.

2

INSPECT 4WD LOCK INDICATOR LIGHT WIRING HARNESS FOR SHORT TO POWER SUPPLY

•  Turn the ignition switch off.

•  Disconnect the 4WD lock switch connector.

•  Turn the ignition switch to the ON position.

•  Measure the voltage between the 4WD lock switch vehicle-side terminal B and ground.

•  Is the voltage less than 1.0 V?

Yes

•  Inspect the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.)

•  If there is any malfunction, repair or replace the applicable part.

No

Repair or replace the wiring harness between 4WD lock switch terminal B and instrument cluster terminal 1A.

STEP	INSPECTION		ACTION
1	INSPECT 4WD SWITCH • Inspect the 4WD lock switch. • Is the 4WD lock switch normal?	Yes	Go to the next step.
1		No	Replace the 4WD lock switch.
2	INSPECT 4WD LOCK INDICATOR LIGHT WIRING HARNESS FOR SHORT TO POWER SUPPLY • Turn the ignition switch off. • Disconnect the 4WD lock switch connector. • Turn the ignition switch to the ON position. • Measure the voltage between the 4WD lock switch vehicle-side terminal B and ground. • Is the voltage less than 1.0 V?	Yes	• Inspect the instrument cluster. (See INSTRUMENT CLUSTER REMOVAL/INSTALLATION.) • If there is any malfunction, repair or replace the applicable part.
2		No	Repair or replace the wiring harness between 4WD lock switch terminal B and instrument cluster terminal 1A.