SERVICE MANUAL UPDATE-SEC. 1C PROCEDURESFOR HVAC PROGRAMER

SUBJECT: SECTION 1-C REMOVE AND INSTALL PROCEDURE FOR HVAC PROGRAMMER (DRIVER/PASSENGER SIR)

VEHICLES AFFECTED: REVISED 1993 "H" MODELS

The following Remove and Install Procedure for the HVAC Programmer 1C-45 has been revised.

Please update your respective service manual accordingly.

PROGRAMMER (DRIVER/PASSENGER SIR)

Figures 6, 7 and 10

Remove or Disconnect

Disable SIR System, refer to "Disabling the Supplemental Inflatable Restraint (SIR) System" in this section.

1. Powertrain control module, refer to Section 6E3-Cl. 2. Vacuum and lower electrical connectors. 3. Programmer screws. 4. Upper electrical connector and programmer.

Install or Connect

1. Upper electrical connector and programmer. 2. Programmer screws.

Tighten Screws to 1.4 N.m (12 lb. in.).

3. Vacuum and lower electrical connectors. 4. Powertrain control modul, refer to Section 6E3-Cl.

Enable SIR System, refer to "Enabling the Supplemental Inflatable Restraint (SIR) System" in this section.

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.