Engine Hood Switch Circuit
General electrical fault on the engine hood (bonnet) switch circuit. The hood switch tells the body controller and (on hybrids) the high-voltage system that the hood is open — used for security, alarm and HV-safety interlock. With the input invalid, alarm logic and HV interlock fall back to a safe state.
Affected components
- Hood switch
- Wiring harness
Common causes
- High likelihood: Open or shorted hood-switch wire
- Medium likelihood: Aged switch with corroded contacts
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.