SERVICE MANUAL UPDATE SEC. 8A REVISED A/C ON-BOARD DIAG.. Oldsmobile Ninety Eight 1992

SUBJECT: DUAL ZONE A/C (CJ2) AIR DELIVERY AND TEMPERATURE CONTROLS PROGRAMMER CONNECTOR IDENTIFICATION

MODEL/YEARS: 1992 NINETY EIGHT

The procedure to enter Dual Zone (CJ2) on-board diagnostics, found in the 1992 Ninety Eight Service Manual is incorrect. The procedure shown on the back of this bulletin replaces the ON BOARD DIAGNOSTICS PROCEDURE found on page 8A-68-26.

This bulletin also clarifies the labeling of the Packard 32-way HVAC Programmer connector used on vehicles equipped with dual zone air conditioning system.

Currently, a common Terminal Position Assurance (TPA) is used in both the C-D 32 pin connector (used on vehicles equipped with the electronic (C68) air conditioning system) and the E-F 32 pin connector (used on vehicles equipped with the dual zone (CJ2) air conditioning system). To properly identity the HVAC Programmer connector used in the dual zone (CJ2) air condition system, the TPA's must be removed. The connector can be identified by the letters on the connector.

CAVITY WIRE COLOR CIRCUIT QUALIFIERS NUMBER C12 SOCKET HALF --------------------------------------------------------------------

E1 BLK/WJHT 803

E2 E3 LT BLU 67

E4 E5 DK GRN 835 LT BLUE 811 E6 BLK(CANADIAN 154 (249 W/O T2T) OLDSMOBILE VEHICLES ONLY) 151 (249 WITH T2T) ONLY 154 BUICK ONLY

E7 DK GRN 835

E8 E9 GRY/BLK 754 E10 TAN 800 E11 TAN 800 E12 BRN 50 E13 ORN 40

E14 E15 GRY 1548

E16

F1 F2 ORN 761

F3 F4 DK GRN/YEL 762 F5 TAN 363 BUICK ONLY F6 YEL 61 F7 DK GRN 734 F8 LT GRN/BLK 735

F9 F10 LT BLU/BLK 590

F11

F12

F13 E14 E15 E16

Object Number: 94778 Size: MH

Object Number: 75059 Size: FS

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.