Engine Hood Switch Circuit Range/Performance

Where it lives

For P257D, the description names the switch as the part involved.

Check these first

• An engine hood switch signal outside its expected range
• A failed engine hood switch
• Corrosion at the engine hood switch connector
• Misalignment of the engine hood switch

What to do next

1. Read the engine hood switch input on a scan tool
2. Test the engine hood switch circuit for open and short faults
3. Check the engine hood switch alignment
4. Inspect the engine hood switch connector for corrosion
5. Replace the engine hood switch if the circuit and alignment test good
6. Clear the code and retest

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