Signal Missing

Signal missing

Checking the power supply and ground for the rear electronic module (REM)
Check that the fuse for the Rear electronic module (REM) is intact.
Check the power supply and ground for the rear electronic module (REM) as follows.

Other information:
- Checking the supply voltage/ground terminal Checking the Supply Voltage/Ground Terminal, Rear Electronic Module (REM)
- 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 rear electronic module (REM)

No - Checking communication with the rear electronic module (REM)

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Checking communication with the rear electronic module (REM)

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 rear electronic module (REM) 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 function of the rear electronic module (REM)

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








- Ignition off
- Reconnect the connectors. Reinstall the components
- Ignition on.
Check the power supply and the ground for the rear electronic module (REM) by switching on the rear fog lamp using the button on the dashboard.
If the central electronic module (CEM) is definitely powered, the power supply for the rear electronic module (REM) can also be checked by pressing the brake pedal. The stop lamp must then light.




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

Can the control module ID be read out?

Yes - Procedure complete

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 power supply and ground for the rear electronic module (REM)

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