Headlamps - Erratic Operation
90pontiac16Bulletin Number: 90-9-9A
Reference Number: 009004R
Publish Date: 8/90
Subject: NEW TWILIGHT SENTINEL AND DAYTIME RUNNING LAMP MODULES (NEW PART)
Models
Affected: 1990 BONNEVILLE MODELS
This bulletin cancels and replaces bulletin 90-9-9 issued 6/90. This bulletin has been revised to correct the labor time.
The 1990 Bonneville Model breakpoint number is L1257540 for the Wentzville plant.
CONDITION: A new Twilight Sentinel module has been developed to correct the following conditions on the subject vehicles:
1. Headlamps coming on and timing out when turning on the park lamp switch with the key in the "off" position. This may occur with the Twilight Sentinel system on or off.
2. Headlamps will not flash at night when the Theft Deterrent system is activated.
3. Headlamps turn on and off (repeated cycles) at dawn or dusk.
CORRECTION: U.S. ONLY - To correct these conditions, replace the
Twilight Sentinel module using part number 16515789.
Parts are currently available from GMSPO.
This change will be reflected in the next Labor Time Guide update.
WARRANTY INFORMATION
Use Labor Operation No.: R4220
Labor Time : .5 hr.
Trouble Code : 92