Signal Too Low

Signal too low

Checking the signal




- Ignition on.
Activate reading off the voltage level from the Central electronic module (CEM) by clicking the VCT2000 symbol.
If the signal from the Central electronic module (CEM) is less than 1.5 V, there is a short-circuit to ground.
If the signal from the Central electronic module (CEM) is greater than 1.5 V, this is an indication that the fault was present previously but that it is not active at the moment, i.e. the fault is intermittent.





Continue.

Continue - Checking the wiring

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Checking the wiring
Check the signal cable between Central electronic module (CEM) terminal #G21 (#21) and clutch pedal position sensor connector terminal #2. Check for a short-circuit to ground.
Check the signal cable between Central electronic module (CEM) terminal #G22 (#22) and accelerator pedal position sensor connector terminal #1. Check for a short-circuit to ground.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- Signal specification Signal Description, Central Electronic Module (CEM)
- Control module relay box passenger compartment Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals









Continue - Verification

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Verification




Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Activate reading off the voltage level from the Central electronic module (CEM) by clicking the VCT2000 symbol.
The value must be approximately 5 V.





Is the value OK?

Yes - Troubleshooting procedure complete

No - Information

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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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