Checking Signal From Hood Switch

Checking signal from hood switch




- Ignition on.




- Hood open.
- Go into rolling values.
- Read off the hood switch status.
The value should be HIGH when the hood is open.

Is the value HIGH?

Yes - No Fault Found

No - Checking for a short-circuit to ground

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Checking for a short-circuit to ground
Check cable between VGLA control module #A3 and hood switch terminal 1 for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.









Were any faults found in the cable?

Yes - Verification

No - Replacing component

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Replacing component
Replace hood switch according to Replacing the hood catch and the micro-switch Service and Repair.

Continue - Verification

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Verification

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




- Ignition off.
- Reconnect connectors, reinstall components.
- Ignition on.




- Hood open.
- Go into rolling values.
- Read off the hood switch status.
The value should be HIGH when the hood is open.

Is the value HIGH?

Yes - Fault has been remedied

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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