We remove the electronic units in the event of their malfunction and during checking.

Removing the airbag control unit

We disconnect the negative terminal of the battery.

We remove the floor tunnel trim (article — Removing the floor tunnel trim of the car).

Cutting the wiring harness retaining clip with side cutters
Cutting the wiring harness retaining clip with side cutters

With side cutters we cut the wiring harness retaining clip.

Unscrewing two control unit securing bolts with a 10 mm socket
Unscrewing two control unit securing bolts with a 10 mm socket

With a 10 mm socket we unscrew two control unit securing bolts.

Moving the wiring harnesses aside and unscrewing the third unit securing bolt
Moving the wiring harnesses aside and unscrewing the third unit securing bolt

We move the wiring harnesses aside and unscrew with a 10 mm socket the third unit securing bolt.

Bringing the control unit out from under the instrument panel console
Bringing the control unit out from under the instrument panel console

We bring the control unit out from under the instrument panel console.

Pressing with a screwdriver on the wiring connector retainer
Pressing with a screwdriver on the wiring connector retainer

With a screwdriver we press on the retainer.

Turning the locking bracket of the wiring connector
Turning the locking bracket of the wiring connector

Having turned the locking bracket of the wiring connector, we disconnect the connector from the unit.

Removing the airbag control unit
Removing the airbag control unit

We remove the airbag control unit.

We install the control unit in the reverse order.

Removing the junction unit

The junction unit is located on the left under the instrument panel.

We disconnect the wire terminal from the negative terminal of the battery.

For clarity it is shown with the instrument panel removed.

Pressing on the wiring connector retainer of the junction unit
Pressing on the wiring connector retainer of the junction unit

We press on the wiring connector retainer.

Turning the retainer bracket of the black connector
Turning the retainer bracket of the black connector

Having turned the retainer bracket, we disconnect the black connector from the unit (the arrows show the bracket and the retainer).

Disconnecting the white connector from the unit
Disconnecting the white connector from the unit

Having squeezed two wiring connector retainers, we disconnect the white connector from the unit.

Unscrewing the junction unit securing screw
Unscrewing the junction unit securing screw

With a Torx T-20 key we unscrew the unit securing screw.

Removing the junction unit
Removing the junction unit

We remove the junction unit. We install the unit in the reverse order.

Removing the transmission control unit of a 4x4 car

The unit is installed on the right under the instrument panel.

We remove the instrument panel, article — How to remove the instrument panel.

Location of the transmission control unit under the instrument panel
Location of the transmission control unit under the instrument panel
Unscrewing two bracket securing bolts with a 10 mm socket
Unscrewing two bracket securing bolts with a 10 mm socket

With a 10 mm socket we unscrew two bracket securing bolts.

Lowering the bracket with the control unit
Lowering the bracket with the control unit

We lower the bracket with the unit.

Disconnecting the wiring connector from the transmission control unit
Disconnecting the wiring connector from the transmission control unit

Having pressed the wiring connector retainer, we disconnect the connector from the unit.

Unscrewing two transmission control unit securing screws
Unscrewing two transmission control unit securing screws

With a Torx T-20 key we unscrew two unit securing screws and remove the transmission control unit.

We install the unit in the reverse order.

Removing the head unit of the sound reproduction system

We disconnect the negative terminal of the battery.

We remove the instrument panel console trim, move the panel aside without disconnecting the wiring connectors from the switches installed in the panel.

Unscrewing four head unit securing screws
Unscrewing four head unit securing screws

With a Torx T-20 key we unscrew four head unit securing screws.

We bring the head unit out of the instrument panel.

Disconnecting the antenna connector from the head unit
Disconnecting the antenna connector from the head unit

Having pressed the antenna connector retainer, we disconnect the connector from the head unit.

Disconnecting the 12-pin white connector from the head unit
Disconnecting the 12-pin white connector from the head unit

Having pressed the wiring connector retainer, we disconnect the 12-pin white connector from the head unit.

Disconnecting the black audio remote control connector
Disconnecting the black audio remote control connector

Having pressed the wiring connector retainer, we disconnect the black connector (audio remote control connector) from the head unit.

Disconnecting the 24-pin white connector from the head unit
Disconnecting the 24-pin white connector from the head unit

Having pressed the wiring connector retainer, we disconnect the 24-pin white connector from the head unit and remove the head unit.

Installing the head unit of the sound reproduction system
Installing the head unit of the sound reproduction system

We install the head unit of the sound reproduction system in the reverse order.

Head unit pin with rubber bush fitted
Head unit pin with rubber bush fitted

When installing, the head unit pin with the rubber bush fitted on it must enter the opening in the instrument panel.