Info - Tail Lamp Circuit Board Now Available for Service Use

This bulletin is being revised to add a part number. Please discard Corporate Bulletin Number 03-08-42-006A (Section 08 -- Body and Accessories).

A new tail lamp circuit board is now available for service use.

If normal diagnosis of a vehicle leads to a failed tail lamp bulb, inspect the bulb socket to ensure proper fit of the bulb into the socket. If the bulb is found to be loose, or if the circuit board has failed, replace both tail lamp circuit boards with the new part number from GMSPO.

Technicians are to replace the tail lamp circuit boards, on both sides of the vehicle, using the following procedure:

1. Remove the tail lamp assembly from the vehicle. Refer to the Tail Lamp Replacement procedure in SI (Document ID #730408).
2. Remove the tail lamp circuit board from the tail lamp assembly. Refer to the Tail Lamp Circuit Board Replacement procedure in SI (Document ID #1340883).
3. Inspect for loose tail lamp bulbs in the tail lamp circuit board. Replace the tail lamp bulb and the tail lamp circuit board if necessary. Refer to the Tail Lamp Bulb Replacement procedure in SI (Document ID #743430) and the Tail Lamp Circuit Board Replacement procedure in SI (Document ID #1340883).
4. Install the tail lamp circuit board. Refer to the Tail Lamp Circuit Board Replacement procedure in SI (Document ID #1340883).
5. Install the tail lamp assembly. Refer to the Tail Lamp Replacement procedure in SI (Document ID #730408).
6. Replace the tail lamp circuit board on the opposite side of the vehicle using the above procedure.
7. Verify the operation of the tail lamps.

Parts are currently available from GMSPO.