INTERMITTENT CLUSTER RESET ADD RESISTOR W/(U52)

Models 1988 - 1989 6000 AND STE MODELS WITH Affected: ELECTRONIC CLUSTER (U52)

Condition:

--------- The 1988 and 1989 Pontiac 6000 and STE with the Electronic Cluster (U52) may reset when a Switch is activated, usually the lumbar seat adjustment switch. The reset causes the entire cluster to go blank, then go thru the "start-up" sequence that normally happens when the ignition is turned on.

Cause:

------ The cluster sees a high voltage spike, which it interprets as an "off" signal. This condition was corrected in production after VIN K6624944.

Correction:

---------- 1. Disconnect negative battery cable.

2. Remove the instrument cluster following Service Manual instructions.

3. From beneath the IP, remove the main cluster connector (black body). Cut the brown wire from cavity # 7 (see illustration). Splice a 1000 (1K) ohm, 1/4 watt resistor into the wire, solder, and tape. The resistor may be obtained from a local electronics supply outlet, such as Radio Shack.

4. Replace the connector in the IP.

5. Reconnect the negative battery cable, and verify that the instrument cluster operates properly.

Warranty Information: Use Labor Operation No. T1442, 0.7 hrs.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.