Engine Control Module: Service and Repair

REMOVAL

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTE:
- Some systems need to be initialized after the cable is reconnected.
- After the ignition switch is turned OFF, the navigation system requires approximately 90 seconds to record various types of memory and settings. As a result, after turning the ignition switch OFF, wait 90 seconds or more before disconnecting the cable from the negative (-) battery terminal.




2. DISCONNECT CONNECTOR HOLDER BLOCK
a. Remove the 3 bolts and move the connector holder block so that the ECM can be removed in the next step.




3. REMOVE ECM




a. Raise the 2 levers while pushing the locks on the 2 levers.

NOTE: Make sure that the lock lever is raised 90° as shown in the illustration before disconnecting the ECM connectors. Failure to do this may cause the ECM connectors to break.

b. Disconnect the 2 connectors.




c. Remove the 4 bolts and ECM.




4. REMOVE ECM GASKET
a. Peel off the sponge part of the gasket.




b. Spray gasket remover or equivalent on the remaining tape of the gasket.

NOTE: When using gasket remover or equivalent, cover the ECM connector with a cloth.




c. Use a cutter knife to remove the tape of the gasket.

NOTE: Do not damage the ECM seal's surface with the knife.

INSTALLATION

1. INSTALL ECM GASKET
a. Clean the ECM seal's surface with non-residue solvent.
b. Attach a new gasket to the ECM.




2. INSTALL ECM
a. Install the ECM with the 4 bolts.

Torque: 8.0 N.m (82 kgf.cm, 71 in.lbf)

NOTE:
- Make sure the gasket is not folded or caught on any area on the surrounding part.
- Make sure there is no foreign matter caught between the gasket and surrounding part.
- Do not damage the gasket.




b. Connect the 2 ECM connectors and push each lock lever down to lock the ECM connectors.

NOTE:
- Make sure that the lock lever is raised 90 degrees before connecting the ECM connectors. Failure to do this may cause the lock lever and terminals to break.
- Do not twist the wire harness when connecting the ECM connectors.




3. CONNECT CONNECTOR HOLDER BLOCK
a. Connect the connector holder block with the 3 bolts.

Torque: 7.3 N.m (74 kgf.cm, 65 in.lbf)

4. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

NOTE: Some systems need to be initialized after the cable is reconnected.