Operation CHARM: Car repair manuals for everyone.

Checking The Switch For Reduced Alarm Functionality






Checking the switch for reduced alarm functionality

Checking the connectors and cables
Check the electronic module for lock and alarm (VGLA), connector (B). Check the connector for the switch for temporary sensor disengagement. Check for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Fault-trace the cable between terminal #4 on the connector for the switch and terminal #B17(#A43) on the connector for the VGLA control module. Check for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Fault-trace the ground lead between terminal #2 on the connector for the switch and ground. Check for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Fault-trace the cable between terminal #4 on the connector for the switch and terminal #B17(#A43) on the connector for the VGLA control module. Check for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Other information:
- For information about signals, see Signal specification, lock and alarm, (VGLA) Signal Specification, Lock And Alarm, (VGLA)
- To connect the breakout box, see Connecting the breakout box, lock and alarm (VGLA) Connecting The Breakout Box, Lock And Alarm (VGLA).





Was a fault detected?

Yes - Verification

No - Replacing the component

-------------------------------------------------

Replacing the component
Try a new switch.

Continue - Verification

-------------------------------------------------

Verification

Hint: After carrying out the repair check that the fault has been remedied as follows:








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Ignition on.
Click the VCT2000-symbol to read off the status of the switch for temporary sensor disengagement.





Does the text correspond to the actual position of the button?

Yes - FAULT FOUND

No - Fault-tracing information

-------------------------------------------------

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

------------------------

Attempt New Test - Checking the connectors and cables

FAULT-TRACING FAILED - No Fault Found

-------------------------------------------------