Engine Control Module: Service and Repair

ECM Removal and Installation

Precautions for Engine

NOTE:

The ECM is a precision unit and can be easily damaged.

Handle the ECM carefully and do not expose it to a large shock.

NOTE:

After ECM is replaced with new one, perform Programming and Relearning Procedure after ECM Replacement.

Removal

1) Disconnect negative (-) cable at battery.
2) Disconnect connectors from ECM as follows.
a) Push lock (1) to release locking of lock lever (2).
b) Turn lock lever in arrow direction until it stops.





3) Remove ECM (2) and bracket (3) from front fender bracket and battery tray by removing their mounting bolts (1).





4) Remove ECM from bracket by removing ECM mounting nuts.

Installation

1) Install ECM (1) to bracket (2).
2) Tighten ECM mounting nuts (3) to specified torque.

Tightening torque
ECM mounting nut (a): 5.5 Nm (0.56 kgf-m, 4.0 lbf-ft)





3) Install ECM and bracket (1) to front fender bracket and battery tray aligning its locating pin (2) of front fender bracket with fitting hole (3).





4) Connect connectors to ECM as follows.
a) Make sure that lock lever of ECM connector is in unlock position.





b) Insert ECM connectors to ECM until it stops.





c) Lock ECM connectors securely by setting their lock levers in their locked position.





5) Perform electric throttle control system calibration. Testing and Inspection