Operation CHARM: Car repair manuals for everyone.

Moves In The Wrong Direction






Moves in the wrong direction

Checking movement direction
Operate backrest changing the angle forward/backward using the control button.

Does the backrest move in the correct direction?

Yes - Checking wiring in potentiometer 2

No - Switching connections on motor 2

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Switching connections on motor 2








- Ignition OFF.
- Remove seat from car according to Replacing seat assembly Replacing Seat Assembly.
- Disconnect gray 14-pin connector B.
Switch over the leads:
- Press out pins in pos. 1 (green lead) and 2 (black lead) from connector B. Use terminal removal tool 951 2631 Terminal removal tool 951 2631 Terminal Removal Tool.
- Switch the leads over and press the pins into the connector.









Press "Continue" when the fault has been remedied.

Continue - Verification

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Checking wiring in potentiometer 2








- Ignition OFF.
- Remove seat from car according to Replacing seat assembly Replacing Seat Assembly.
- Disconnect gray 14-pin connector B.
Check that the blue/white lead is connected to B:5 and the yellow/white lead is connected to B:4.
If the leads are in the wrong positions:
- Press out pins B:5 and B:4. Use terminal removal tool 951 2631 Terminal removal tool 951 2631 Terminal Removal Tool.
- Switch the leads over and press the pins into the connector.
- Reinstall connector





Were the connections OK?

Yes - Replace component

No - Verification

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Replace component
The motor and potentiometer are correctly connected to the control module.
Try a new control module according to Control module, replace Control Module.





Press "Continue" when the fault has been remedied.

Continue - Verification

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Verification




Verification




- Ignition OFF.
- Connect up seat in car.
Select scrolling values and read off the value from the potentiometer for motor 2.
Operate backrest forward/backward using the control button.





The value should increase when the backrest moves forwards and decrease when it moves backwards.

OK - VERIFIED

Not OK - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit fault-tracing

No - Attempt New Test

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Attempt New Test - Checking movement direction

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