B2452

CIRCUIT DESCRIPTION
The body control module (BCM) controls the courtesy lamps theater dimming. The ground will slowly reduce in order to turn the lamps to the OFF position. If there is an open or a short to ground condition in the courtesy lamp low control circuit DTC B2452 will set.

CONDITIONS FOR SETTING THE DTC
The BCM detects a short to ground or an open in the courtesy lamp low control circuit.

ACTION TAKEN WHEN THE DTC SETS
^ Stores DTC B2452 in the BCM memory.
^ No driver warning message will be displayed for this DTC.

CONDITIONS FOR CLEARING THE DTC
^ The short to ground condition is no longer detected by the BCM in the courtesy lamp low control circuit.
^ The open circuit condition is no longer detected by the BCM in the courtesy lamp low control circuit.
^ The ignition key is cycled OFF and ON.
^ A history DTC clears after 50 consecutive ignition cycles if the condition for the fault is no longer present.

TEST DESCRIPTION

Steps 1-5:

The numbers below refer to the step numbers on the diagnostic table.
2. This step tests for a short to ground or an open circuit in the courtesy lamp low control circuit.