B2654

DTC B2654

CIRCUIT DESCRIPTION
The body control module (BCM) controls the courtesy lamps through the courtesy lamp low control circuit. The BCM grounds the courtesy lamp low control circuit which completes the interior lamps circuit, and the lamps illuminate.

CONDITIONS FOR RUNNING THE DTC
The BCM must command the interior lamps output OFF.

CONDITIONS FOR SETTING THE DTC
- The BCM detects an output that is low when a high is expected in the courtesy lamp low control circuit.
- The condition above must be present for more than 0.3 seconds.

ACTION TAKEN WHEN THE DTC SETS
The BCM stores DTC B2654 in memory.

CONDITIONS FOR CLEARING THE DTC
- A current DTC B2654 clears if the short to ground or open in the courtesy lamp low control circuit is no longer detected by the BCM.
- A history DTC B2654 clears after 100 consecutive error free ignition cycles with no BCM malfunction detected.

DIAGNOSTIC AIDS
- If the DTC B2654 is a history DTC, the fault may be intermittent.
- The following conditions may cause an intermittent malfunction to occur:
- An intermittent short to ground or open in the courtesy lamp low control circuit.
- Any courtesy lamp is intermittently shorted to ground or open internally.
- The BCM is intermittently shorted to ground or open internally.

TEST

Steps 1 - 4:

Steps 5 - 13: