Component Tests and General Diagnostics

PARKING LAMP CIRCUIT





Description
The IPDM E/R (intelligent power distribution module engine room) controls the tail lamp relay based on inputs from the BCM via the CAN communication lines. When the tail lamp relay is energized, power flows through fuse 36 and 37, located in the IPDM E/R. Power then flows to the front and rear combination lamps, license plate lamp.




Component Function Check
1.CHECK PARKING LAMP OPERATION
WITHOUT CONSULT-III
1. Activate IPDM E/R auto active test. Diagnosis Description.
2. Check that the parking lamp is turned ON.
CONSULT-III
1. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
2. With operating the test items, check that the parking lamp is turned ON.






Is the parking lamp turned ON?
YES - Parking lamp circuit is normal.
NO - SEE Diagnosis Procedure.




Diagnosis Procedure
Regarding Wiring Diagram information, [1][2]Electrical Diagrams.
1.CHECK PARKING LAMP FUSES
1. Turn the ignition switch OFF.
2. Check that the following fuses are not open.





Is the fuse open?
YES - Replace the fuse after repairing the affected circuit.
NO - GO TO 2
2.CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)
1. Turn the ignition switch OFF.
2. Disconnect the front parking lamp connector, front side marker lamp connector, rear combination lamp connector and license plate lamp connector.
3. Turn the ignition switch ON.
4. Turn the parking lamps ON.
5. With the parking lamps ON, check voltage between the front parking lamp connector and ground.





6. With the parking lamps ON, check voltage between the front side marker lamp connector and ground.





7. With the parking lamps ON, check voltage between the rear combination lamp connector and ground.





8. With the parking lamps ON, check voltage between the license plate lamp connector and ground





Are voltage readings as specified?
YES - GO TO 4
NO - GO TO 3
3.CHECK PARKING, LICENSE PLATE AND TAIL LAMP CIRCUIT (OPEN)
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between the IPDM E/R harness connector and the front parking lamp harness connector.





4. Check continuity between the IPDM E/R harness connector and the front side marker lamp harness connector.





5. Check continuity between the IPDM E/R harness connector and the rear combination lamp harness connector.





6. Check continuity between the IPDM E/R harness connector and license plate lamp connector.





Are continuity results as specified?
YES - Replace IPDM E/R. Service and Repair.
NO - Repair the harnesses or connectors.
4.CHECK PARKING, LICENSE AND TAIL LAMP GROUND CIRCUITS
1. Check continuity between the front parking lamp harness connectors and ground.





2. Check continuity between the front side marker lamp harness connectors and ground.





3. Check continuity between the rear combination lamp harness connectors and ground.





4. Check continuity between the license plate lamp harness connector and ground.





Are continuity results as specified?
YES - Inspect the parking lamp bulb.
NO - Repair the harness.