Caprice RWD V8-305 5.0L (1992)
Center Mounted Brake Lamp: Customer Interest
Cruse Control - Intermittent or No Operation
Number:
93-02-9B
Section:
9B
Date:
AUGUST 1992
Corporate Bulletin No.:
238114
ASE No.:
A1, A8
Subject:
INTERMITTENT OR NO CRUISE CONTROL OPERATION
Model and Year:
1992-93 CAPRICE
Condition:
The cruise control system may not operate on the 1992-93 B-cars. On wagons, the cruise control may be intermittent, may drop out while driving, or may
fail to engage.
Cause:
The ground for the brake switch signal to the cruise control module (part of the stepper motor assembly) goes thru the Center High Mounted Stop Lamp
(CHMSL). If the stop lamp bulb is burned out, there will be no ground path for the cruise control. On wagons, the contacts for the CHMSL on the
tailgate glass may corrode, causing intermittent operation. Adding a resistor will allow a ground through the brake switch without going through the bulb.
Correction:
On both sedans and wagons, check for operation of the CHMSL bulb. If the bulb is burned out, replace it. This should correct the inoperative cruise
condition.
Wagons Only:
1.
Disconnect the negative battery cable.
2.
Remove the left rear quarter trim panel, as shown in Section 10-7 of the Service Manual.
