ABS Indicator Lamp On, DTC 21,22,32 or 33 Set
File In Section: 5 - BrakesBulletin No.: 63-50-15B
Date: March, 1998
Subject:
ABS Indicator Lamp ON, DTC 21, 22, 32 or 33 Set
(Install Front ABS Wheel Speed Sensor Wiring Harness Connector Kit)
Models:
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
This bulletin is being revised to update parts and applicable model information. Please discard Corporate Bulletin Number 63-50-15A - (Section 5 - Brakes)
Condition
Some owners may comment that the ABS indicator lamp is "ON". Also, malfunction DTC 21, 22, 32 or 33 could set.
Cause
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.
Correction
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 Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Description Labor Time
H2530 Right Side Use published
H2531 Left Side Labor Operation
Time