Diagnosis Procedure

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.





PARKING LAMP CIRCUIT


Diagnosis Procedure

Regarding Wiring Diagram information, 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.





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 - GO TO 4.
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 B70 and B130 terminal 3 and ground.










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





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