GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 552679  Size: SH
  1. Remove the accessory wiring junction block cover (1).

  2. Object Number: 428687  Size: SH
  3. Remove the compressor control relay (A/C CMPR) from the electrical center.

Installation Procedure


    Object Number: 428687  Size: SH
  1. Install the compressor control relay (A/C CMPR) into the electrical center.

  2. Object Number: 552679  Size: SH
  3. Install the accessory wiring junction block cover (1).