Possible Causes
- Electrical Cause
- Yes
- Mechanical Cause
- No
- Monitor Description
- Compare the ambient pressure sensor value, +/- sensor tolerance, to maximum and minimum thresholds, derived from the total mean value of all the pressure sensors during engine start
- Prioritized List of Possible Causes
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Powertrain control module failure. The sensor is installed within the powertrain control module and is not serviceable