Load Shed Failure Short To Battery
When Monitored: Ignition in RUN and IOD fuse/connector installed.
Set Condition: The BCM has detected a short to battery on the Interior Load Shed circuit for 5 seconds.
Possible Causes are:
- SHORTED GLOVE BOX LAMP BULB
- INTERIOR LAMP LOAD SHED CONTROL SHORT TO BATTERY (COURTESY)
- INTERIOR LAMP LOAD SHED CONTROL SHORT TO BATTERY (GLOVE BOX)
- BCM - INTERIOR LAMP LOAD SHED CONTROL
- Turn ignition off. Remove the Glove Box lamp bulb. Turn ignition on. Using the DRBIII(R), erase all BCM DTC's. Using the DRBIII(R), read BCM DTC's. Is the LOAD SHED FAILURE SHORT TO BATTERY DTC present? If yes, go to next step. If no, replace bulb. Perform BODY VERIFICATION TEST VER 1 under VERIFICATION TESTS.
- Turn ignition off. Ensure the Glove Box is closed with the Lamp switch in the off position. Disconnect the BCM C1 connector. Turn ignition on. Measure the voltage of the Interior Lamp Load Shed Control circuit in the C1 connector. Is there any voltage? If yes, repair the Interior Lamp Load Shed Control circuit for a short to battery. Perform BODY VERIFICATION TEST VER 1 under VERIFICATION TESTS. If no, go to next step.
- Turn ignition off. Ensure all of the Overhead, rear Reading and Vanity Lamp Switches are in the off position. Disconnect the Junction Block C1 connector. Turn ignition on. Measure the voltage of the Interior Lamp Load Shed Control circuit in the Junction Block C1 connector. Is there any voltage? If yes, repair the Interior Lamp Load Shed Control circuit for a short to battery. 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.