Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit Low

Where it lives

For P2A52, the circuit described runs through the sensor. The description of P2A52 reports a fault at the sensor.

Check these first

• A short to ground on the vaporizer A outlet temperature sensor signal
• A failed vaporizer A outlet temperature sensor reading low
• Low reference voltage at the vaporizer A outlet temperature sensor
• Corrosion in the vaporizer A outlet temperature sensor connector
• A control module misreading the vaporizer A outlet temperature low

What to do next

1. Read vaporizer A outlet temperature on a scan tool
2. Test the vaporizer A outlet temperature sensor signal for a short to ground
3. Check the vaporizer A outlet temperature sensor reference voltage
4. Inspect the vaporizer A outlet temperature sensor connector
5. Replace the vaporizer A outlet temperature sensor if the circuit tests good
6. Clear the code and retest

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