Diagnostic Aids
- If the DTC B2588 is a history DTC, the fault may be intermittent. Refer to TESTING WIRING SYSTEMS FOR INTERMITTENT & POOR CONNECTIONS .
- 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.
- The BCM is shorted to battery.