Charging System Control Module: Service and Repair

Energy Management Control Module

Removing

• While removing and installing, no charger must be connected.

- If the control module was replaced, select the replace function for the respective control module in guided fault finding or guided functions.

- Select the function or path:





- Follow the instructions on the vehicle diagnosis tester display.

- With ignition switched off, disconnect battery Ground (GND) wire. Refer to => [ Battery, Disconnecting and Connecting ] Battery, Disconnecting and Connecting.

Vehicles with Molded Insert:

- If present, remove mounting bolt - 1 -.





- Remove molded insert from spare wheel well - arrows -.

All:

- Remove ground pin - 2 - and cap nut - 5 -.





- Remove energy management control module (J644) - 4 -.

- Remove the ground (GND) wire - 1 - to battery from energy management control module.

- Disconnect electrical connector - 3 -.

- Press catch - 1 - and rotate retaining bracket in direction of - arrow -.





Installing

When installing, always heed the following sequence, otherwise proper function of energy management control module cannot be guaranteed.





1. Install ground (GND) wire - 1 - to battery on energy management control module.

2. Screw energy management control module - 4 - onto body, to do so tighten ground (GND) pin - 2 - and cap nut - 5 -.

3. Connect ground (GND) wire to battery.

4. Connect electrical harness connector - 3 - to energy management control module.

5. Perform necessary steps after connecting battery => [ Vehicles with : ] Battery, Disconnecting and Connecting.

If energy management control module was replaced, it must be coded.

- Select the function or path:





- Follow the instructions on the Vehicle Diagnosis Tester display.

Tightening Specifications