Signal Missing

Signal missing

Checking the function of the phone module (PHM)
For further information about the fuse and terminal pin numbers, see the relevant Wiring Diagram.
Check that the phone module (PHM) is powered and grounded by pressing the ON/OFF button and then pressing the YES button.
The LED in the ON/OFF button must light.

Does the LED in the ON/OFF button light?

Yes - Checking communication with the phone module (PHM)

No - Checking the power supply and ground for the phone module (PHM)

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Checking the power supply and ground for the phone module (PHM)
Check that the fuse for the control module is intact.
Check the power supply and the ground terminal for the phone module (PHM).
Remedy as necessary.

Other information:
- 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 function of the phone module (PHM)

No - Checking communication with the phone module (PHM)

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Checking communication with the phone module (PHM)

Hint: The CAN communication with the control module is probably OK if the control module ID can be read off. The fault is probably intermittent and may therefore be difficult to locate.




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

Continue - No Fault Found

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No Fault Found - No Fault Found

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Checking the function of the phone module (PHM)

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








- Ignition off
- Reconnect the connectors. Reinstall the components
- Ignition on.
Check that the phone module (PHM) is powered and grounded by pressing the ON/OFF button and then pressing the YES button.
The LED in the ON/OFF button must light. A text message must appear in the display on the driver information module (DIM).

Does the LED in the ON/OFF button light?

Yes - FAULT FOUND

No - Fault-tracing information

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Fault-tracing information

Attempt New Test - Checking the function of the phone module (PHM)

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