B2655
DTC B2655
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 courtesy lamp low control circuit, and the lamps illuminate.
DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B2655 Courtesy Lamp Low Control Circuit High
CONDITIONS FOR RUNNING THE DTC
The BCM must command the courtesy dimming feature ON.
CONDITIONS FOR SETTING THE DTC
- The BCM detects a short to battery 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 B2655 in memory.
CONDITIONS FOR CLEARING THE DTC
- A current DTC B2655 clears if the short to battery positive voltage in the courtesy lamp low control circuit is no longer detected by the BCM.
- A history DTC B2655 clears after 100 consecutive error free ignition cycles with no malfunction.
DIAGNOSTIC AIDS
- If the DTC B2655 is a history DTC, the fault may be intermittent.
- The following conditions may cause an intermittent malfunction to occur:
- An intermittent short to battery positive voltage in the courtesy lamp low control circuit
- Any courtesy lamp is intermittently shorted to battery positive voltage internally.
- The BCM is intermittently shorted to battery positive voltage
TEST
