Front Seat In Case of a Faulty Control Module or Seat Forward/Back Adjustment Motor

Front Seat in Case of a Faulty Control Module or Seat Forward/Back Adjustment Motor

• Move the seat up if possible.

• Seat is shown without upholstery and without backrest in picture for the sake of a better illustration.

Removing

Follow all safety precautions when working on pyrotechnic components. Refer to => [ Restraint System Components, Safety Precautions and General Information ] Restraint System Components, Safety Precautions and General Information.

- Remove the bolt - 3 -.






- Disconnect screw - 4 - and nut - 6 - at threaded connection.

Loosen bolts - 2 - (quantity 4) only after checking electrical or electronic components and wires.

After loosening screws - 2 -, lower seat pan frame - 7 - including seat forward/back adjustment motor (V288) must be replaced with the transverse member.

- Move the seat forward. Remove the steering wheel if necessary.

Before handling airbag units (for example, when disconnecting the harness connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.

• Check electrical and electronic components and wires before removing seat further to avoid unnecessary repair costs.

- Perform the following tests:

• Check fuse.

• Check voltage at connector station, perform Fault Finding if necessary

• Check voltage to control module.

• Check the voltage to the seat forward/back adjustment motor (V288).

- Replace the fuse if faulty.

- If there is no voltage at the connector station, repair or replace the wire.

- Replace the control module if faulty. Refer to => [ Memory Seat/Steering Column Adjustment Control Module J136 or Passenger Memory Seat Control Module J521 ] Memory Seat/Steering Column Adjustment Control Module J136 or Passenger Memory Seat Control Module J521.

- If the seat forward/back adjustment motor (V288) is faulty: Replace the lower seat frame - 7 - with the seat forward/back adjustment motor (V288) and transverse member. Refer to => [ Seat Pan, Disassembling and Assembling ] Seat Pan, Disassembling and Assembling.






Continue removing only if the seat forward/back adjustment motor (V288) is faulty






- Turn on the ignition and disconnect the ground cable from the battery.

- Remove the bolts - 2 - (quantity 4).

- Disconnect seat fore and aft adjustment connector - 9 - at motor.

- Tip front seat back.

- Slide seat until screws - 1 - (quantity: 4) become visible.

5 Upper seat pan frame
7 Lower seat pan frame
8 Driver seat console

Before handling airbag units (for example, when disconnecting the harness connector), the person handling them must "discharge static electricity". For example, by briefly touching the door striker pin.

- Disconnect connectors. Refer to => [ Connectors, Disconnecting ] Connectors, Disconnecting.

- Connect Airbag Adapter (VAS 6235) or (VAS 6280). Refer to => [ Airbag Adapter, Disconnecting and Connecting ] Airbag Adapter, Disconnecting and Connecting.

- With help from a second technician, lift the front seat out of vehicle.

- Separate the lower frame - 7 - from the upper frame - 5 -. Refer to => [ Seat Pan, Disassembling and Assembling ] Seat Pan, Disassembling and Assembling.






- Replace lower seat pan frame - 7 - with the seat forward/back adjustment motor (V288) with the transverse member - 9 -. Refer to => [ Seat Pan, Disassembling and Assembling ] Seat Pan, Disassembling and Assembling.

Installation

Follow all safety precautions when working on pyrotechnic components. Refer to => [ Restraint System Components, Safety Precautions and General Information ] Restraint System Components, Safety Precautions and General Information.

Installation of the seat is in reverse order of removal, noting the following:

- Clean nut threads before installing new screws.

- Insert new screws.

- Following screw installation sequence. Refer to => [ Front Seat ] Front Seat.

- Install the front seat => [ Front Seat ] Front Seat.

Tightening Specifications






• Tightening torque for screws - 1 -. Refer to => [ Driver Seat Assembly Overview ] Driver Seat Assembly Overview or => [ Passenger Seat Assembly Overview ] Passenger Seat Assembly Overview

• Bolt tightening specification - 3 -. Refer to => [ Seat Pan Assembly Overview ] Seat Pan Assembly Overview

• Bolt tightening specification - 5 -. Refer to => [ Seat Pan Assembly Overview ] Seat Pan Assembly Overview