P20AD
Reductant Metering Unit Temperature Sensor Circuit Range/Performance
P20AD is an OBD-II diagnostic trouble code meaning: Reductant Metering Unit Temperature Sensor Circuit Range/Performance. Common causes: malfunction of the urea injection unit temperature sensor, open or short circuit in the sensor circuit. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unpleasant exhaust smell
- Possible AdBlue system error messages
Causes
- Malfunction of the urea injection unit temperature sensor
- Open or short circuit in the sensor circuit
- Poor contact in sensor circuit connectors
- Problems with the SCR control unit
- Contamination or damage to the urea injection unit
How to Fix
- Check the continuity of the temperature sensor circuit
- Check sensor connectors and connections
- Check the resistance of the temperature sensor
- If necessary, replace the temperature sensor
- Check and, if necessary, replace the urea injection unit
Related codes
Error P20AD by Vehicle Brand
FAQ
What does the P20AD code mean?
P20AD is an OBD-II diagnostic trouble code that indicates: Reductant Metering Unit Temperature Sensor Circuit Range/Performance
What causes a P20AD error code?
The most common causes of P20AD include: Malfunction of the urea injection unit temperature sensor; Open or short circuit in the sensor circuit; Poor contact in sensor circuit connectors; Problems with the SCR control unit.
How do I fix a P20AD diagnostic trouble code?
To fix P20AD: Check the continuity of the temperature sensor circuit. Check sensor connectors and connections. Check the resistance of the temperature sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20AD?
Yes, but get it checked soon
How much does it cost to fix P20AD?
The estimated repair cost for P20AD is $33–167. Actual cost depends on your vehicle, location, and labor rates.
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