Signal Too Low

Signal too low

Function test




- Ignition on.

Hint: The inner antennas are connected to the same driver circuit in the keyless vehicle module (KVM).

Check the inner antenna circuit by clicking on the VCT2000 symbol.









Was the function OK?

Yes - Fault-tracing information

No - Checking the wiring

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Fault-tracing information
The keyless vehicle module (KVM) has previously registered a fault but the fault no longer exists. The diagnostic trouble code (DTC) was probably caused by an intermittent fault. If the fault persists, fault-tracing according to this diagnostic trouble code (DTC) must be carried out despite no fault symptoms being found. The fault is evaluated depending on how it occurs.
You can choose to view the information again or exit the fault-tracing.

Do you want to view the information again?

Yes - Function test

No - DONE

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Checking the wiring




- Ignition off.
Check the wiring for each antenna. Check for damage. Check for a short-circuit to ground. Measure the resistance between an antenna terminal and the ground terminal for the keyless vehicle module (KVM). Twist and turn the connectors and cable harness to establish the source of the intermittent faults.
The resistance must be infinite.
Remedy as necessary.
If no faults are found in the wiring to an antenna which displayed a fault, replace the antenna.

Other information
- Connecting the breakout box Connecting the Breakout Box, Keyless Vehicle Module (KVM)
- Antenna, locking system, keyless entry, front Antenna, Locking System, Keyless Entry, Front
- Antenna, locking system, keyless entry, luggage compartment Antenna, Locking System, Keyless Entry, Luggage Compartment
- 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.
Check the function of the inner antenna circuit by clicking on the VCT2000 symbol. The keyless vehicle module (KVM) checks the antennas and wiring.
The result should be OK.





Is the check 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

Attempt New Test - Function test

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