Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit High
Voltage on the outlet temperature sensor signal line of alternative fuel vaporizer B is above the expected window. Wire shorted to B+ or sensor open.
Affected components
- Alt fuel vaporizer b outlet temp sensor
- Wiring harness
- Afcm
Common causes
- High likelihood: Signal wire shorted to B+
- Medium likelihood: Open temperature sensor
- Low likelihood: Connector pins corroded - high contact resistance
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
Related codes
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.