GM Service Manual Online
For 1990-2009 cars only

CHARGE LIGHT COMES ON WITH HEAVY ELECT. LOAD AT IDLE

CONDITION:

SOME EARLY MODEL PARK AVENUE OR ULTRA MODELS EQUIPPED WITH THE UB3 GAGE PACKAGE CLUSTER MAY EXPERIENCE THE FOLLOWING CONDITION. WITH THE ENGINE AT IDLE AND HIGH ELECTRICAL LOADS, THE CLUSTER MAY ILLUMINATE THE CHARGE INDICATING LED LOCATED NEXT TO THE VOLT GAGE. THE INTERNAL TURN ON POINT FOR THE CLUSTER WAS SET TOO HIGH AND MAY GIVE THE DRIVER A FALSE CHARGING SYSTEM FAILURE INDICATION. FIGURE 1 SHOWS THE ACTUAL VOLTAGE VALUES FOR THIS CLUSTER.

CORRECTION:

VERIFY THAT THE CHARGING SYSTEM IS WORKING PROPERLY. IF THE VEHICLE EXHIBITS THE ABOVE CONDITION, THE CLUSTER MUST BE CHANGED. FOLLOW THE NORMAL PROCEDURE TO PROCURE AN EXCHANGE CLUSTER FROM THE LOCAL DELCO REPAIR CENTER. A LIST OF CENTERS AND CLUSTER DESCRIPTIONS ARE SHOWN IN BULLETIN 91-013-8.


Object Number: 94799  Size: SH

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.

COPYRIGHT 1990 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.