P20AE
Reductant Metering Unit Temperature Sensor Circuit Low
P20AE is an OBD-II diagnostic trouble code meaning: Reductant Metering Unit Temperature Sensor Circuit Low. Common causes: open or short circuit in the sensor circuit, reductant temperature sensor malfunction. Estimated repair cost: $28–89.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Possible transition to emergency mode
- Increased NOx emissions
Causes
- Open or short circuit in the sensor circuit
- Reductant temperature sensor malfunction
- Poor contact in the sensor connector
- Wiring harness damage
- Problems with the SCR control unit
How to Fix
- Check the integrity of the sensor circuit
- Inspect connectors and connections for corrosion
- Check the resistance of the temperature sensor
- Replace the reductant temperature sensor if necessary
- Check the operation of the SCR system after repair
Related codes
Error P20AE by Vehicle Brand
FAQ
What does the P20AE code mean?
P20AE is an OBD-II diagnostic trouble code that indicates: Reductant Metering Unit Temperature Sensor Circuit Low
What causes a P20AE error code?
The most common causes of P20AE include: Open or short circuit in the sensor circuit; Reductant temperature sensor malfunction; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a P20AE diagnostic trouble code?
To fix P20AE: Check the integrity of the sensor circuit. Inspect connectors and connections for corrosion. Check the resistance of the temperature sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20AE?
Yes, but get it checked soon
How much does it cost to fix P20AE?
The estimated repair cost for P20AE is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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