Reductant Tank Temperature Sensor A Circuit Low

Where it lives

For P205C, the circuit described runs through the sensor. The description of P205C reports a fault at the sensor.

Check these first

• A short to ground on the reductant tank temperature sensor A signal wire
• A failed reductant tank temperature sensor A
• A DEF level too low to cover the tank sensor
• A corroded sensor A connector pulling the signal low

What to do next

1. Read reductant tank temperature sensor A on a scan tool
2. Check the DEF level over the tank sensor
3. Test the sensor A signal wire for a short to ground
4. Inspect the sensor A connector for corrosion
5. Replace the reductant tank temperature sensor A if the circuit tests good
6. Clear the code and retest

Look up another code