FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Component Tests and General Diagnostics




TAIL LAMP CIRCUIT

Component Function Check


1. CHECK PARKING LAMP AND FRONT SIDE MARKER LAMP OPERATION

Check that the parking lamp and front side marker lamp are turned ON.
Is the inspection result normal?
YES- GO TO 2.
NO- Check parking lamp circuit. Parking Lamp Circuit.

2. CHECK TAIL LAMP OPERATION

CONSULT ACTIVE TEST
1.Select "EXTERNAL LAMPS" of IPDM E/R active test item.
2.With operating the test items, check that the tail lamp is turned ON.

TAIL: Tail Lamp ON
Off: Tail lamp OFF

Is the inspection result normal?
YES- Tail lamp circuit is normal.
NO- .


Diagnosis Procedure


1. CHECK TAIL LAMP BULB

Check the applicable lamp bulb.
Is the inspection result normal?
YES- GO TO 2.
NO- Replace bulb.

2. CHECK TAIL LAMP OUTPUT VOLTAGE

CONSULT ACTIVE TEST
1.Disconnect rear combination lamp connector.
2.Turn ignition switch ON.
3.Select "EXTERNAL LAMPS" of IPDM E/R active test item.
4.With operating the test items, check voltage between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Replace IPDM E/R.

3. CHECK TAIL LAMP OPEN CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R connector and rear combination lamp connector.
3.Check continuity between IPDM E/R harness connector and rear combination lamp harness connector.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace harness.

4. CHECK TAIL LAMP GROUND OPEN CIRCUIT

Check continuity between rear combination lamp harness connector and ground.





Is the inspection result normal?
YES- Check corresponding bulb socket and harness. Repair or replace if necessary.
NO- Repair or replace harness.