Electronic Control Unit
- Disconnect battery ground cable. On Renault models, remove passenger seat and fold back carpet. On all models, disconnect electrical connector retaining clamps or press back on clip located on wire end of connector.
- Disconnect electrical connector, swinging to right if necessary to remove. Remove ECU retaining screws and remove ECU: To install, reverse removal procedure. ECU is located as follows:
- BMW 528e & 633CSi - Glove compartment.
- BMW 733i - Right kick panel, behind speaker.
- Fiat - Under dash on right side.
- Porsche 944 - Under dash.
- Porsche 928 - Right kick panel.
- Renault - Under carpet under passenger seat.
- Volkswagen - Right side of engine compartment.