Skoda Workshop Service and Repair Manuals > Fabia Mk2 > Drive unit | 1.9/77 kW TDI PD Engine | Fuel preparation system Diesel injection | Engine control unit | Removing and installing engine control unit J623 (Fabia II, Roomster)

Removing and installing engine control unit J623 (Fabia II, Roomster)

Removing and installing engine control unit -J623- (Fabia II, Roomster)

Note

If the engine control unit must be replaced, connect → Vehicle diagnosis, testing and information system VAS 5051 and perform the function “replace engine control unit”.

Special tools and workshop equipment required

t	Body saw e.g. body saw -V.A.G 1523/A-

Removing

–	Switch off ignition.

–	Press the bracket -arrows- outwards and pull the engine control unit out sideways.

For vehicles with protective cover

–	Cut with body saw a slot for the cross-head screwdriver in the heads of the pull-off screws.

Note

It must be sawed twice with the body saw, so that the slot is wide enough, in order to be able to unscrew the screws with a suitable screwdriver.

–	Screw out the screws.

–	Remove protective cover of control unit.

For all vehicles

–	Disconnect plug at engine control unit and unplug.

Install

Connect both plugs and lock.

For vehicles with protective cover

–	Insert protective cover and fix with new pull-off screws at engine control unit.

For all vehicles

Insert the control unit into the pressure retaining clips -arrows- on the body.

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