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ABS INDICATOR LAMP ON, DTC 21, 22, 32 OR 33 SET
TECHNICAL SERVICE BULLETIN
Reference Number(s): 63-50-15B
Related Ref Number(s): 63-50-15B
ABS INDICATOR LAMP ON, DTC 21, 22, 32 OR 33 SET (INSTALL FRONT ABS WHEEL SPEED SENSOR WIRING HARNESS CONNECTOR KIT)
Model(s): 1992-97 Buick Skylark
1991-96 Chevrolet Beretta, Corsica
1992-97 Chevrolet Cavalier
1992-97 Oldsmobile Achieva
1992-94 Pontiac Sunbird
1995-97 Pontiac Sunfire
1992-97 Pontiac Grand Am
Section: 5 - Brakes
Bulletin No.: 63-50-15B
Date: March, 1998
NOTE:This bulletin supersedes Technical Service Bulletin number 63-50-15A, (Section 5 - Brakes). This bulletin is being revised to update parts and applicable model information.
Some owners may comment that the ABS indicator lamp is "ON". Also, malfunction DTC 21, 22, 32 or 33 could set.
The right front and left front ABS wheel speed sensor wiring harness could be damaged and result in an open circuit. The wiring harness may be damaged approximately 4 inches (10 cm) back from the harness connector to the wheel speed sensor. This allows moisture to enter the harness causing corrosion and resulting in the open circuit.
A thorough inspection for corrosion and/or damage should be performed on suspect vehicles. It may be necessary to move the protective conduit away in order to inspect the wiring properly. If a failure occurs and damage is found, install the front ABS wheel speed sensor wiring harness connector kit(s). The kit includes instructions, splices, and "pigtail" connector.
Parts are currently available from GMSPO.
Year(s) Model(s) Part Number Description
91-96 92-97L-Car N-Car12140077Left Front ABS Wheel Speed Sensor Harness Kit
91-96 92-97L-Car N-Car12140078Right Front ABS Wheel Speed Sensor Harness Kit
92-94J-Car12128505Left Front ABS Wheel Speed Sensor Harness Kit
92-94J-Car12128504Right Front ABS Wheel Speed Sensor Harness Kit
95-97J-Car12187091Right and Left Front ABS Wheel Speed Sensor Harness Kit
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Sunday, March 22nd, 2009 AT 7:49 AM