P1442: EVAP Vacuum Sw. High Voltage During Ign. On
Possible Causes
- Faulty sensor or actuator related to the system
- Wiring or connector issues in the circuit
- Low fluid levels or contamination
- Mechanical issues in the affected system
- Faulty control module
Diagnosis and Repair
- Confirm the code with an OBD-II scanner and check related codes
- Inspect wiring and connectors for damage or loose connections
- Check fluid levels and condition; replace if necessary
- Test the sensor or actuator with a multimeter or scan tool
- Replace faulty components as needed
- Clear codes and test drive to verify repair
Related Error Codes
See also: P1403, P1404, P1405, P1406, P1407
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