The center of the Electronic Engine Control (EEC) system is a microprocessor called the Powertrain Control Module (PCM). The PCM 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. These models use a 190-pin PCM.
Removal & Installation
- Retrieve the module configuration. Carry out the module configuration retrieval steps of the Programmable Module Installation procedure.
- Disconnect the 3 powertrain control module (PCM) electrical connectors.
- Remove the 2 nuts and the PCM.
Remove the gasket.
- Install the gasket and the PCM.
- Install the 2 PCM nuts and tighten to 5 Nm (44 lb-in).
- Connect the 3 PCM electrical connectors.
- Restore the module configuration. Carry out the module configuration restore steps of the Programmable Module Installation procedure.
- Reprogram the Passive Anti-Theft System (PATS). Carry out the Parameter Reset procedure
Check the power and grounds for the Powertrain Control Module (PCM). Check all the connector pins for corrosion or contact problems. Refer to PCM connectors, power and ground chart.