The Corvette 5.7L V8 engine uses a PCM, while 6.0L V8 engine uses an ECM. For 6.0L V8 applications, see Engine Control Module (ECM).
Removal & Installation
- Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
- Remove the wheelhouse filler panel.
- Remove the throttle actuator control (TAC) module. See Throttle Actuator Control (TAC) Module.
- Disconnect the powertrain control module (PCM) electrical harness connectors.
- Loosen but do not remove the PCM rear retaining fastener. Use the rear retaining fastener as an anchor for the outer bracket.
- Remove the front retaining fastener from the PCM.
- Reposition the PCM outer bracket.
- Remove the PCM from the bracket and the vehicle.
- Install the PCM to the PCM rear bracket.
- Position the PCM front bracket.
- Install the PCM front retaining fasteners. Tighten the PCM retaining fasteners to 2.0 Nm (17 inch lbs.).
- Connect the electrical connectors to the PCM. Tighten the PCM electrical connectors to 8 Nm (70 inch lbs.).
- Install the TAC module. See Throttle Actuator Control (TAC) Module.
- Install the wheelhouse filler panel.
- If a new PCM is being installed, program the PCM.