Signal Missing

Signal missing

Checking the function of the infotainment control module (ICM)
With the ignition key in position I or II, check that the infotainment control module (ICM) is powered and grounded by checking that the button illumination for the infotainment control module (ICM) lights.
If the button illumination lights up, the infotainment control module (ICM) is powered and grounded.





Does the button illumination light?

Yes - Checking communication with the infotainment control module (ICM)

No - Checking the power supply and ground for the infotainment control module (ICM)

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Checking the power supply and ground for the infotainment control module (ICM)
Check that the fuse for the control module is intact.
Checking the power supply and ground for the infotainment control module (ICM).

Other information:
- Checking the voltage / ground terminal Component Tests and General Diagnostics
- For information about fuse and terminal numbers, see the relevant Wiring Diagram.
- Checking wiring and terminals Checking Wiring and Terminals

Was a fault detected?

Yes - Checking the infotainment control module (ICM)

No - Checking communication with the infotainment control module (ICM)

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Checking communication with the infotainment control module (ICM)

Hint: The CAN communication with the control module is probably OK if the control module ID can be read off. In that case the fault is probably intermittent and will then be more difficult to trace.




- Try to communicate with the infotainment control module (ICM) by reading off the control module ID
- Click on the symbol for VCT2000 to begin reading off

Continue - Signal Missing - General Information

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Checking the infotainment control module (ICM)

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








- Ignition off
- Reconnect the connectors. Reinstall the components
- Ignition on for at least 10 seconds.
With the ignition key in position I or II, check that the infotainment control module (ICM) is powered and grounded by checking that the button illumination for the infotainment control module (ICM) lights. If the button illumination lights up, the infotainment control module (ICM) is powered and grounded.

Does the button illumination light?

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 the function of the infotainment control module (ICM)

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