Checking Control Buttons

Checking the control buttons

Checking connectors and components
If any of the control panels for power windows in the passenger door/rear doors or the central locking button in any of the front doors do not work, this may be due to it not being correctly connected.
Check that the relevant control panel is correctly connected.

Other information
- Panel front door Panel, Front Side Door, Replacing
- Panel rear door Panel, Rear Side Door, Replacing

Was a fault detected?

Yes - Verification

No - Checking the wiring

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Checking the wiring
Check the cables between control module and relevant control panel. Check for an open-circuit. Check for loose connections. Check for contact resistance. Check for oxidation.

Central locking in front door
Take readings between:
Control module terminal #C2:5 (#35) and central locking button terminal #3.
Control module terminal #C2:21 (#51) and central locking button terminal #2.
Control module terminal #C2:20 (#50) and central locking button terminal #1.

Control panel for power windows in passenger door
Take readings between:
Control module terminal #C1:22 (#22) and control panel terminal #2.
Control module terminal #C1:11 (#11) and control panel terminal #3.
Control module terminal #C1:18 (#18) and control panel terminal #4.

Control panel for power windows in rear doors
Take readings between:
Control module terminal #C1:22 (#22) and control panel terminal #2.
Control module terminal #C1:11 (#11) and control panel terminal #3.
Control module terminal #C1:18 (#18) and control panel terminal #4.
Remedy as necessary.

Other information
- Signal specification Signal Specification, Driver's Door Module / Passenger Door Module (DDM/PDM)
- Checking wiring and terminals Checking Wiring And Terminals
- Panel front door Panel, Front Side Door, Replacing
- Panel rear door Panel, Rear Side Door, Replacing

Was a fault detected?

Yes - Verification

No - Information

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Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off.
- Reinstall the connectors, components etc.
- Ignition on.
Check that the control responds as expected.

Do all the buttons operate normally?

Yes - FAULT FOUND

No - Information

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Information

Attempt New Test - Checking connectors and components

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