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 37, located in the IPDM E/R. Power then flows to the front and rear combination lamps.

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. While operating the test item, check that the parking lamp is turned ON.

Is the parking lamp turned ON?
YES - Parking lamp circuit is normal.
NO - SEE Diagnosis Procedure - Without Daytime Light System, SEE Diagnosis Procedure - With Daytime Light System.

Diagnosis Procedure - Without Daytime Light System
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 - Repair the harness and replace the fuse.
NO - GO TO 2.
2.CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)
1. Turn the ignition switch OFF.
2. Disconnect the front combination 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 combination lamp connectors and ground.

6. With the parking lamps ON, check voltage between the rear combination lamp connectors and ground.

7. 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 E124.

3. Check continuity between the IPDM E/R harness connector (A) and the front combination lamp harness connector (B).

4. Check continuity between the IPDM E/R harness connector (A) and the rear combination lamp harness connector (B).

5. Check continuity between the IPDM E/R harness connector (A) and license plate lamp connector (B).

Are continuity test 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 combination lamp harness connectors E11 and E107 terminal 4 and ground.

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

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

Does continuity exist?
YES - Inspect the parking lamp bulb.
NO - Repair the harness.

Diagnosis Procedure - With Daytime Light System
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.