Safari Van M V6-262 4.3L VIN Z TBI (1990)
Instrument Cluster / Carrier: All Technical Service Bulletins
Instruments - Irregular Cluster Display
Group Ref.: Chassis/Body Electrical
Bulletin No.: 968101
Date: April, 1994
SUBJECT:
IRREGULAR ELECTRONIC INSTRUMENT CLUSTER DISPLAY/FALSE TEMP INDICATION WHEN HORN IS ACTIVATED (REPLACE
HORN ASSEMBLIES)
MODELS:
1989-94 CHEVROLET AND GMC TRUCK MIL VANS WITH ELECTRONIC INSTRUMENT CLUSTER (RPO U52)
THIS BULLETIN IS BEING REVISED TO ADD 1990-94 MODEL YEARS AND TO UPDATE SERVICE PARTS INFORMATION.
PREVIOUS DIVISIONAL PUBLICATION NUMBERS WERE:
DIVISION
BULLETIN NUMBER
CHEVROLET
89-144-8C
GMC TRUCK
89-T-53
GM CANADA
89-8-149
CONDITION:
An irregular electronic instrument cluster display condition can sporadically occur when the horns are activated. When this occurs, the temperature gauge
goes full scale (hot) and returns to normal operation after approximately two seconds, or the electronic cluster display will dim and remain dim until the
ignition key is turned off.
CAUSE:
Unsuppressed electrical surges from the horn circuit.
CORRECTION:
New horn assemblies will be released incorporating a surge suppression capacitor.
If this condition is encountered, it can be repaired by installing the assemblies listed below.
