Engine Control Module: Service and Repair

Control Module Mounting:

CAUTION:

- The ignition must be "OFF," when disconnecting or reconnecting the control module connector, to prevent internal damage to the control module.

- To prevent possible Electrostatic Discharge to the control module, DO NOT touch the connector pins or soldered components on the circuit boards.

NOTE: When replacing a production control module with a service controller, transfer the broadcast DTC and production control module part number to the controller label. DO NOT record information on the access cover.

REMOVAL:

- Disconnect the negative battery terminal.
- Remove control module mounting bracket under drivers seat. Lift and twist to remove from under seat.
- Disconnect control module harness connectors.
- Remove brackets and modules, if equipped.
- Remove access cover and PROM (MEM-CAL).

INSTALLATION:

- Install PROM (MEM-CAL) and access cover on to new control module.
- Install mounting brackets and module(s).
- Connect control module harness connectors.
- Install control module and bracket under driver seat.
- Connect the negative battery terminal.
- Perform functional check.