Reductant Pump Motor Position Sensor Circuit

Where it lives

For P2AD6, the sensor sits on the circuit this code reports. The description of P2AD6 reports a fault at the sensor.

Check these first

• A failed reductant pump motor position sensor
• An open or short in the pump motor position sensor wiring
• A corroded sensor connector inside the DEF pump
• A pump motor that does not move so the position sensor reads stale

What to do next

1. Scan all modules and read the reductant pump motor position sensor
2. Inspect the DEF pump sensor connector for corrosion or coolant
3. Test the pump motor position sensor circuit for open and short faults
4. Command the reductant pump and watch the position sensor track the motor
5. Replace the reductant pump assembly if the position sensor cannot track
6. Clear the code and retest

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