Internal Fault

Internal fault. Permanent fault

Checking seat function
Program in seat position 2.
Move seat to another position.
Attempt to move the seat to memory position 2.

Does the memory function correctly?

Yes - FAULT FOUND

No - Checking the control panel

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Checking the control panel
Check whether the signal from the control panel is received by the power seat module (PSM).
To read off the input signal to the power seat module (PSM) for memory button 2, select Mem 2 from the menu.
Read off the value.

Hint: When checking the control panel, check if the resistance between terminal #6C and the terminal pin is 0 ohms.





Other information
- To connect the breakout box, see Connecting the breakout box, power seat module (PSM) Connecting The Breakout Box, Power Seat Module (PSM)
- For information about signals, see Signal specification, Power seat module Signal Specification, Power Seat Module (PSM).









Does the value change?

Yes - Checking the memory in the power seat module (PSM)

No - Replacing the component

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Replacing the component
Replace the control panel. See Side panel, replacing Side Panel Front Seat, Replacing.

Continue - Verification

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Checking the memory in the power seat module (PSM)
The power seat module (PSM) has detected a fault in the memory. Try programming in a new seat position. If this does not work, the actual seat position can be compared with the programmed seat position.
As soon as the memory has been programmed the actual value should be the same as the programmed value.





Does the memory function correctly?

Yes - Verification

No - Replacing the component

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Replacing the component
Replace the power seat module (PSM) according to Power seat module (PSM), replacing Service and Repair.


Continue - Verification

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Verification

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

The check is performed by checking the diagnostic trouble code (DTC) status.
Activate button





Is the diagnostic trouble code (DTC) now intermittent?

Yes - FAULT FOUND

No - Fault-tracing information

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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 seat function

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