Component Locations

Powertrain Control Module (PCM) is located in left side on engine compartment on fender. Cooling fan relay is located in underhood electrical center. See Fig 1. For fan clutch location, see Fig 2.

Fig 1: Identifying Cooling Fan Relay

Courtesy of GENERAL MOTORS CORP.

Fig 2: Identifying Cooling Fan Location (4.2L)

Courtesy of GENERAL MOTORS CORP.