Faulty Signal

Faulty signal

Checking the component




- Ignition on.
If the malfunction is intermittent, it means that the malfunction has been registered at an earlier time but the malfunction no longer remains. Intermittent faults can occur for a number of different reasons. The fault is evaluated depending on how it occurs.
Check that Power Seat Module, Left (PSL) receives the signal from the hall sensor. Operate the relevant seat motor. Check whether the value counts upwards and downwards as the seat is moved in each direction.
The value shall be counted up or down depending on seat movement.
Read off the value by clicking on the VCT2000 symbol.









Is the function OK?

Yes - FAULT FOUND

No - Checking the wiring and component

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Checking the wiring and component




Check the cable between power seat module, left (PSL) #B12 (#54) and hall sensor 2 for open circuit, short-circuit to ground and short-circuit to voltage.
Check the cable between power seat module, left (PSL) #B8 (#50) and hall sensor 2 for open circuit, short-circuit to ground and short-circuit to voltage.

Hint: The hall sensor shall generate a pulsed signal.

Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Power Seat Module Left (PSL)
- Signal specification Signal Specification, Power Seat Module Left (PSL)
- Checking wiring and terminals Checking Wiring and Terminals





Continue - Verification

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Verification




- Ignition on.
Read off the value by clicking on the VCT2000 symbol.
Check that Power Seat Module, Left (PSL) receives the signal from the hall sensor. Operate the relevant seat motor. Check whether the value counts upwards and downwards as the seat is moved in each direction.
The value shall be counted up or down depending on seat movement.





Is the function OK?

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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FAULT-TRACING FAILED - DONE

Attempt New Test - Checking the component

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