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Brakes - ABS VI/TCS Diagnostic Assistance & Parts Return

FILE IN SECTION: 5 - Brakes

BULLETIN NO.: 31-50-13A

DATE: June, 1995

SUBJECT:
Delphi Chassis ABS VI/TCS Diagnostic Assistance and Parts Return Program

MODELS:
1992-94 Buick Regal, Skylark
1994-95 Buick Century
1992-95 Chevrolet Beretta, Cavalier, Corsica, Lumina, Lumina APV
1993-95 Chevrolet Camaro
1995 Chevrolet Monte Carlo
1993-95 Geo Prizm
1995 Geo Metro
1991 Oldsmobile Cutlass Calais
1992-95 Oldsmobile Achieva, Cutlass Supreme, Silhouette
1994-95 Oldsmobile Cutlass Ciera
1992-95 Pontiac Grand Am, Grand Prix, Sunbird, Trans Sport
1993-95 Pontiac Firebird

This bulletin is being revised to change the parts information. Please discard Corporate Bulletin Number 315013 (Group Reference - Brakes)

Due to the success of the Delphi Chassis System ABS VI/TCS service part exchange program in providing customer/dealership feedback and minimizing service/diagnostic problems, the program has been modified effective April 15, 1995. Effective 4/15/95, the following ABS VI/TCS service parts will be released from restriction:

Description Vehicle P/N Core Charge

Motorpack Kit 91 N 18018305
Electronic Brake Control Module 91 N 16149391
Electronic Brake Control Module 92 J,L,N, 93 L 16167132
Electronic Brake Control Module 92 W 16154594
Electronic Brake Control Module 92-1/2, 93 W 16173347
Electronic Brake Control Module 92 U 16152890
Hydraulic Modulator Kit 93-94 F 18029923
Hydraulic Modulator Kit 93-94 S 18029925
Master Cylinder Assembly Kit 93-94 F 18021940
Combo Valve Block 93-94 F 18020589
Combo Valve Block 93-94 S 18020570
Integral Bearing and Speed Sensor 93-95 F 7466986
Assembly Front
Hub Assembly-Rear 93-95 S 7466995
Speed Sensor-Rear 93-95 F 10456115
Differential Jumper 93-95 F 12106689
WSS Jumper Harness L/R Front 93-94 F 12145049
WSS Jumper Harness L/R Front 95 F 12145732
Motorpack Kit 1992/95 U, 18019215 $250
1993/95 F,
1994/95 A
Motorpack Kit 1992/95 W 18019214 $250
Motorpack Kit 1993/95 S 18019421 $250

At this time, the dealership may begin to order and stock the released ABS VI/TCS part(s) through normal GMSPO channels.

The Delphi Chassis System ABS VI/TCS service part exchange program is still in effect for certain restricted parts. The parts that are still on restriction are listed in this document. The procedure outlined must be followed when the diagnostics contained within Section 5E1 and 5E2 of the Service Manual lead to the replacement of a part contained on the restricted list.

THE PART REPLACEMENT/RETURN PROCEDURE

1. The Dealership Technician

A. The Dealership Technician is required to diagnose the ABS VI/TCS system using Section 5E1 or 5E2 of the Service Manual and TECH 1 or T100 (CAMS) tools.

B. If the diagnosis leads to the replacement of a restricted part, the Technician must then contact Delphi Chassis System Technical Assistance to verify diagnosis and establish a TAS case using the appropriate phone number as follows:

CHEVROLET 1-800-227-3175
PONTIAC 1-800-523-0203
OLDSMOBILE 1-800-523-0203
BUICK 1-800-523-0203
GM of CANADA 1-800-523-0203

Important:
There are no French operators at these locations. Therefore, GM of Canada Dealers without bilingual personnel should contact their regular "1-800" Technical Assistance Center number.

C. The Technician must have the following information when contacting Delphi Chassis System Technical Assistance:

VIN
Vehicle mileage
Dealer Code
Step-by-step results from the trouble trees used to diagnose the vehicle

2. Replacement Part(s) Orders

A. Upon verification of proper diagnosis involving a restricted part, the TAS Consultant will place the necessary part(s) orders directly to GMSPO or a A.C Delco Service Center.

B. The ordered parts will be shipped to the dealer within 24 hours via GMSPO VIP OVERNIGHT status. The part will be billed with the VIP surcharge and overnight shipping premiums waived.

Important:
Dealers cannot order restricted ABS VI parts directly from GMSPO. If a dealer attempts to order any of the restricted parts directly, the order will be rejected with a message to contact Delphi Chassis System Technical Assistance. A listing of the restricted parts are included in this bulletin.

3. Part(s) Returns

A. System Components Excluding Electronic Brake Control Module (EBCM)

Replacement parts will be packaged in heavy gauge returnable boxes. The box will include a self-adhering return label and a short instruction sheet.

1. To ensure proper and timely core charge crediting, complete the lower half of the provided instruction sheet and include it with the returned part. The following information must be included with all returned parts:

TAS Case Number (assigned by Delphi Chassis System)
VIN
Vehicle Mileage
Dealer Code
Diagnostic Trouble Codes
Copy of Repair Order
Technician's Name and Phone Number

2. Return the replaced part(s) within three (3) days to your servicing parts distribution center.

Important:
Disregard any return label inside service part packaging. All part(s) should be returned through your normal PDC.

3. When your PDC receives the defective part with the proper information, they will issue the appropriate core credit.

B. Electronic Brake Control Module (EBCM)

1. Upon receipt and installation of the replacement EBCM promptly return the removed EBCM to the same A.C. DELCO Service Center that shipped the replacement EBCM.

2. If the removed EBCM core is not returned in a timely manner to the A.C. DELCO Service Center, along with a completed ACD-1078 claim form, the dealer will be charged dealer net or greater for the pre-exchanged unit. Additional ACD-1078 claim forms may be obtained from your vehicle division zone office.

ABS VI Restricted Parts Vehicle P/N Core Charge
Motorpack Kit 1992/95 J/L/N 18019203 $250
EBCM 1993 F 16171460 Exchange
EBCM 1993 J/L/N, 1994 J 16212976 Exchange
EBCM 1993 S 16169021 Exchange
EBCM 1993 S 16162909 See Note
EBCM 1993 U 16163576 Exchange
EBCM 1993 W, 1994 Chev W 16176728 Exchange
EBCM 1994 A 16183424 Exchange
EBCM 1994 F 16184358 Exchange
EBCM 1994 L/N 16184392 Exchange
EBCM 1994/95 S 16188300 Exchange
EBCM 1994/95 S 16188469 See Note
EBCM 1994 U 16184390 Exchange
EBCM 1994 W Buick/Olds 16188024 Exchange
EBCM 1994 Pont W 16184393 Exchange
EBCM 95 W 16217718 Exchange
EBCM 95 W 16173018 Exchange
EBCM 95 W 16203633 Exchange
EBCM 95 A 16203637 Exchange
EBCM 95 U 16203636 Exchange
EBCM 95 F 16207618 Exchange
EBCM 95 N/L 16200482 Exchange
EBCM 95 N (VES)* 16211499
EBCM 95 W (VES)* 16212401
EBCM 95 J 16199777 Exchange
EBTCM 94-95 U 16199471
EBTCM 95 F 16199451
B P Modulation Kit (TCS) 94-95 U 18021098 $250
B P Modulation Kit (TCS) 95 F 18021100 $250
TCS Motor Pack 95 F/U 18021107 $250
Wheel Speed Sensor-Rear 95 F 10456182 $ 50
WSS JPP Harness-Rear 95 F 12113964
EBCM 95 A 16215491
EBCM 95 W (VES)* B-O-P 16209171
EBCM 95 J (ETS)** 16216847 Exchange

* Variable Effort Steering

** Enhanced Traction System

Important:
Available for fire, theft, collision, or flood damage only.

PARTS INFORMATION

Parts are currently available from GMSPO.