Engine Control Module: Service and Repair

Speaker Removal:

Removing ECM Bracket Bolts:

ECM Bracket:

ENGINE CONTROL MODULE REPLACEMENT
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.

PROCEDURE

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 screws and left front speaker cover from Instrument Panel (I/P).
3. Two screws, left front speaker electrical connector and left front speaker from I/P.
4. Two bolts and ECM bracket from I/P support brace.
5. Two screws and fuse block from ECM bracket.
6. Two screws and ECM from ECM bracket.
7. Two ECM electrical connectors.

INSTALL OR CONNECT
^ Transfer old plastic shield to new ECM; secure with two screws (convertible models).

1. Two ECM electrical connectors.
2. ECM to ECM bracket; secure with two screws.
3. Fuse block to ECM bracket; secure with two screws.
4. ECM bracket to I/P support brace; secure with two bolts. Tighten ECM bracket-to-I/P support brace bolts to 20 Nm (15 lb. ft.).
5. Left front speaker electrical connector and left front speaker to I/P; secure with two screws.
6. Left front speaker cover to I/P; secure with two screws.
7. Negative (-) battery cable. Tighten negative (-) battery cable-to-negative (-) battery terminal retainer to 15 Nm (11 lb. ft.).