Checking Signal From Control Switch, Driver's Door
Checking signal from control switch, driver's door
Checking the locking signal
- Ignition off
- Connect the breakout box
- Connect an ohmmeter between terminals #A16 (A16) and #A1 (A1).
Turn the key in the driver's door to the locking position.
The value must be infinite when the lock is unaffected and 0ohms when the key is turned to the locking position.
Other information
- To connect the breakout box, see Connecting the breakout box, lock and alarm (VGLA) Connecting The Breakout Box, Lock And Alarm (VGLA).
Is the value OK?
Yes - Checking the unlocking signal
No - Checking control switch and wiring
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Checking control switch and wiring
- Disconnect the connector for the control switch in the driver's door
- Ignition on
- Bridge between terminals #1 and #2 in the connector on the VGLA control module side.
Note! The diagnostic trouble code (DTC) is stored if the connector is bridged for more than 10 seconds.
Read off the status of the control switch in the driver's door.
The value should be LOW.
Is the value OK?
Yes - Replacing the component
No - Checking the wiring
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Checking the unlocking signal
- Ignition off
- Connect an ohmmeter between terminals #A18 (A18) and #A1 (A1).
Turn the key in the driver's door to the unlocking position.
The value must be infinite when the lock is unaffected and 0ohms when the key is turned to the unlocking position.
Is the value OK?
Yes - No Fault Found
No - Checking control switch and wiring
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Checking the wiring
Check the cable between VGLA control module terminal #A16 (A16) and the control switch connector terminal #1. Check for an open-circuit. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the cable between the control switch connector terminal #2 and ground. Check for an open-circuit. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Checking control switch and wiring
- Disconnect the connector for the control switch in the driver's door
- Ignition on
- Bridge between terminals #3 and #2 in the connector on the VGLA control module side.
Note! The diagnostic trouble code (DTC) is stored if the connector is bridged for more than 10 seconds.
Read off the control switch unlocking signal status.
The value should be LOW.
Is the value OK?
Yes - Replacing the component
No - Checking the wiring
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Checking the wiring
Check the cable between VGLA control module terminal #A18 (A18) and the control switch connector terminal #3. Check for an open-circuit. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Check the cable between the control switch connector terminal #2 and ground. Check for an open-circuit. See Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Replacing the component
Try a new control switch.
Other information:
- To access or replace the control switch in the driver's door, see Door lock front door Lock And Handle For The Front Side Door.
Continue - Verification
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Verification
Hint: After carrying out the repair check that the fault has been remedied as follows:
- Ignition off
- Reconnect the connectors, reinstall components etc.
- Connect the breakout box
- Connect an ohmmeter between terminals #A16 (A16) and #A1 (A1).
Turn the key in the driver's door to the locking position.
The value must be infinite when the lock is unaffected and 0ohms when the key is turned to the locking position.
- Connect an ohmmeter between terminals #A18 (A18) and #A1 (A1).
Turn the key in the driver's door to the unlocking position.
The value must be infinite when the lock is unaffected and 0ohms when the key is turned to the unlocking position.
Other information
- To connect the breakout box, see Connecting the breakout box, lock and alarm (VGLA) Connecting The Breakout Box, Lock And Alarm (VGLA).
Are these values OK?
Yes - FAULT FOUND
No - 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 locking signal
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