The center of the electronic engine control (EEC) system is a microprocessor called the PCM. The PCM uses a 150-pin connector and receives input from sensors and other electronic components (switches, relays). Based on the information received and programmed into its memory, the PCM generates output signals to control various relays, solenoids and actuators.
Removal & Installation
- Disconnect the battery ground cable. For additional information, refer to Section 414-01 .
- Remove the instrument panel side trim strip.
- Remove the cowl side trim panel (kick panel).
- Remove the glove box.
- Remove the passenger side lower foot well trim panel.
- Remove the two retaining nuts.
- Remove the generic electronic module (GEM0 and the bracket and position aside.
- Disconnect the 3 powertrain control (PCM) module electrical connectors and remove the PCM.
Installation is the reverse of the remove procedure.
CAUTIONMake sure that the PCM electrical connectors do not unlock when installing the GEM module.