Signal Missing

Signal missing

Checking switches




- Ignition on.
Check the function of the switches in the door handle, left front. Press the VCT2000 symbol and then pull the front left door handle out to its limit position.
The value for the door handle should be Activated when the handle is pulled outward.









Is 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.

Continue - No Fault Found

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Checking the wiring




- Ignition off.
Check the cable between the keyless vehicle module (KVM) and the door handle switch left-hand front. Check for an open-circuit. Check for a short-circuit to ground.
Also check the ground lead between the door handle and the door control module. Check for an open-circuit. Check for a short-circuit to ground.
Also check the ground terminal for the door control module. Check for loose connections and oxidation.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Keyless Vehicle Module (KVM)
- Left-hand drive cars (LHD): Driver door module (DDM) Driver Door Module (DDM)
- Right-hand drive cars (RHD): Passenger door module (PDM) Passenger Door Module (PDM)
- Checking wiring and terminals Checking Wiring and Terminals





Was a fault detected?

Yes - Verification

No - Replacing the component

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Replacing the component
If no other fault is discovered, the door handle should be replaced.

Other information
- Handle outer door front Service and Repair

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.
Check the function of the switch in the left front outer door handle by clicking on the VCT2000 symbol. Then pull the door handle outwards.
The value should be Activated when the handle is pulled out.





Is the function OK

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - FAULT FOUND

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Fault-tracing information

Attempt New Test - Checking switches

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