Engine Control Module: Service and Repair

Removing Engine Control Module:

ENGINE CONTROL MODULE SERVICE
Service of the Engine Control Module (ECM) consists of complete replacement of the ECM. There are no serviceable parts, such as Programmable Read Only Memory (PROM) or Erasable Programmable Read Only Memory (EPROM) to replace inside the ECM. If the ECM is determined to be faulty, it is to be replaced as a complete assembly.


IMPORTANT: When replacing the production ECM with a service ECM, it is important to transfer the broadcast code and production ECM number to the service ECM label. Please do not record on the ECM cover. This will allow positive identification of the ECM parts throughout the service life of the vehicle.

REMOVE OR DISCONNECT
1. Negative (-) battery cable.
2. Two clips and pull glove box down.
3. Three bolts and ECM bracket from behind glove box.
4. Three ECM electrical connectors and ECM from passenger compartment.

INSTALL OR CONNECT
1. Three ECM electrical connectors.
2. ECM bracket to mounting bracket behind glove box; secure with three bolts. Tighten ECM bracket bolts to 15 Nm (11 lb ft).
3. Two clips and push glove box up.
4. Negative (-) battery cable. Tighten negative (-) battery cable-to-negative (-) battery terminal retainer to 15 Nm (11 lb ft).