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 over the CAN communication lines. When the tail lamp relay is energized, power flows through fuses 46 and 47, located in the IPDM E/R. Power then flows to the front and rear combination lamps, license plate 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. 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)
CONSULT-III
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector, rear combination lamp connector, license plate lamp connector.
3. Turn the ignition switch ON.
4. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
5. With EXTERNAL LAMPS ON, check the voltage between the front combination lamp connector, rear combination lamp connector, license plate lamp connector and ground.





Is the measurement value normal?
YES - GO TO 4
NO - GO TO 3
3.CHECK PARKING 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 combination lamp harness connector, rear combination lamp harness connector, license plate lamp harness connector.





Does continuity exist?
YES - Replace IPDM E/R. Service and Repair.
NO - Repair the harnesses or connectors.
4.CHECK PARKING LAMP GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Check continuity between the front combination lamp harness connector, rear combination lamp harness connector, license plate lamp harness connector and ground.





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