Bonneville V6-231 3.8L VIN 3 SFI (1988)
Outside Temperature Display: All Technical Service Bulletins
Outside Air Temp Display - Rapid Rise At Idle Speed
Bulletin Number: 91-1-13
Reference Number: 201103
Publish Date: 7/92
Subject:
RAPID RISE OF OUTSIDE AIR TEMPERATURE DISPLAY C68 DURING COLD WEATHER (INSTALL NEW CONTROL HEAD)
Models Affected:
1988-91 BONNEVILLE MODELS
CONDITION:
In cold weather, some owners of 1988-91 Bonneville models with Electronic Climate Control (C68) may experience a condition where the outside air
temperature reading on the control head may rise rapidly during extended periods of idling. When the vehicle begins to move, the temperature display
may rapidly drop to the actual temperature.
CORRECTION:
A new control head, part number 16178768, has been released for service. This new head contains software that changes the filtering update rate of the
outside air temperature program. Refer to the service manual for the proper replacement procedure.
The above listed part only corrects this service condition. Any other system complaint should be serviced with the service part listed in the GMSPO
catalog.
PARTS STATEMENT:
Parts are expected to be available on July 20, 1992. In case of limited inventory, parts will be placed on 400 control to waive VIP surcharges. Only
verifiable emergency VIP orders will be accepted. SPO will make every effort to obtain parts. However, the part will be shipped premium transportation
at dealer's expense and all other order types will be placed on backorder until the 400 control is removed.
