B2588

DTC B2588

CIRCUIT DESCRIPTION
The body control module (BCM) controls the park lamp relay. The BCM grounds the park lamp relay coil control circuit which energizes the park lamp relay.

CONDITIONS FOR RUNNING THE DTC
The BCM must be commanding the park lamp relay to energize.

CONDITIONS FOR SETTING THE DTC
- The BCM detects a short to battery in the park lamp relay coil control circuit when the BCM is trying to energize the park lamp relay.
- The condition above must be present for more than 0.3 seconds.

ACTION TAKEN WHEN THE DTC SETS
The BCM stores DTC B2588 in memory.

CONDITIONS FOR CLEARING THE DTC
- The BCM no longer detects a short to battery in the park lamp relay coil control circuit when the park lamp relay is commanded to energize.
- A history DTC B2588 will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.

DIAGNOSTIC AIDS
- If the DTC B2588 is a history DTC, the fault may be intermittent.
- The following conditions may cause an intermittent malfunction to occur:
- An intermittent short to battery in the park lamp relay coil control circuit.
- The park lamp relay coil is shorted to battery internally.
- The BCM is shorted to battery internally.

TEST

Steps 1 - 7:

Steps 8 - 13: