GM Service Manual Online
For 1990-2009 cars

ABS & BRAKE TELLTALES ARE ON

SUBJECT: ABS and BRAKE Telltales are On with Diagnostic Trouble Code 42 Stored in Memory (Replace ABS Modulator Assembly)

MODELS AFFECTED: 1994 - 1995 Saturns equipped with anti - lock brakes up to and including VIN SZ282397.

CONDITION: ABS (anti-lock brake system) and BRAKE telltales are On with diagnostic trouble code (DTC) 42 stored in memory. Once condition is present, it may continue for eight to ten ignition cycles and then clear. When condition clears, DTC 42 will be stored in Malfunction history.

CAUSE: Dimensional tolerances internal to the ABS modulator assembly may cause intermittent interference resulting in a DTC 42.

CORRECTION: Replace the ABS modulator assembly P/N 21011769 with P/N 21012528 using procedures in the appropriate year "Brakes Service Manual."

If the condition persists after the repair, refer to the appropriate year "Brakes Service Manual" for further diagnostic procedures.

PARTS REQUIREMENTS: 21012528 Modulator Asm - ABS

CLAIM INFORMATION: To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System using the appropriate electronic Saturn Labor Time Guide for the correct Labor Operation Code and Time.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.