Checking The Hood Switch

Checking the hood switch

Checking the signal from the hood switch




- Ignition on.
- Hood closed.
Read off the hood switch status.
The value should be LOW when the hood is closed.





Is the value LOW?

Yes - No Fault Found

No - Checking the connectors

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Checking the connectors




- Check the VGLA control module connector and the hood switch connector for contact resistance and oxidation according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
- Ignition on.
- Hood closed.
Read off the hood switch status.
The value should be LOW when the hood is closed.
If the value is OK the cause of the fault was loose connections in the connectors.





Is the value LOW?

Yes - FAULT FOUND

No - Checking for an open-circuit

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Checking for an open-circuit
Check the cable between VGLA control module #A3 and hood switch terminal 1 and the cable between hood switch terminal 2 and ground for an open-circuit according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault









Were any faults found in the cables?

Yes - Verification

No - Replacing component

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

Select "Continue" when this has been done.

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 connectors, reinstall components.
- Ignition on.
- Hood closed.
Read off the hood switch status.
The value should be LOW when the hood is closed.





Is the value LOW?

Yes - FAULT FOUND

No - Fault-tracing information
No Fault Found

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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 signal from the hood switch

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