Fault-Tracing Information

Fault-tracing

Note! This trouble code is only relevant for troubleshooting and action in the following cases:

- The trouble code is active in the present driving cycle and has been active for a longer period of time.
- The customer experiences malfunction that can be attributed to the trouble code.
In other cases, the DTC does not indicate a fault and must therefore be ignored and only erased.

Do you want to continue fault-tracing?

Yes - Checking the component and wiring

No - DONE

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Checking the component and wiring
Check the fuse for the keyless vehicle module (KVM).

Hint: A half burned fuse can cause intermittent faults.

Check the terminals on the keyless vehicle module (KVM). Check for contact resistance and oxidation. Check for damage.
Check the cable for voltage feed between rear relay and fuse box and Keyless vehicle module (KVM) for loose connection, contact resistance and oxidation.
Check the ground cable between Keyless vehicle module (KVM) and the ground connection for open circuit and short-circuiting to voltage. Also check the ground terminal. Check for contact resistance and oxidation.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Keyless Vehicle Module (KVM)
- Signal specification Signal Specification, Keyless Vehicle Module (KVM)
- For further information about the fuses and relays, see the Wiring Diagram
- Checking the supply voltage/ground terminal Component Tests and General Diagnostics
- 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.
Read off the power supply to the keyless vehicle module (KVM) by clicking on the VCT2000 symbol.
Check that the voltage is approximately battery voltage.









Is the voltage OK?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - 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 component and wiring

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