Rear Fog Relay Output Shorted Hi

When Monitored: Ignition switch in the On position and the IOD fuse installed.

Set Condition: This condition is set when the BCM is trying to activate the rear fog lamp relay and excessive current is detected on the control circuit.

Possible Causes are:

• REAR FOG LAMP RELAY SHORTED TO VOLTAGE
• JUNCTION BLOCK REAR FOG LAMP RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
• BODY CONTROL MODULE

1. Remove the Rear Fog Lamp Relay from the Junction Block. Turn ignition on. Measure the voltage of the Rear Fog Lamp Relay Control circuit (cavity No. 86) in the Rear Fog Lamp Relay connector. Is the voltage more than one volt? If yes, go to next step. If no, replace the rear fog lamp relay. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.
2. Turn ignition off. Remove the Rear Fog Lamp Relay from the Junction Block. Remove the BCM from the Junction Block. Turn ignition on. Measure the voltage of the Rear Fog Lamp Relay Control circuit (cavity No. 86) in the Rear Fog Lamp Relay connector. Is the voltage more than one volt? If yes, replace the Junction Block. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS. If no, replace the Body Control Module. Perform BODY VERIFICATION TEST VER 1  under VERIFICATION TESTS.