P20BA
Reductant Heater A Control Circuit Performance
P20BA is an OBD-II diagnostic trouble code meaning: Reductant Heater A Control Circuit Performance. Common causes: open or short circuit in the heater circuit, heater control relay malfunction. Estimated repair cost: $33–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased urea consumption
- Increased NOx emissions
- Inability to activate DPF regeneration
Causes
- Open or short circuit in the heater circuit
- Heater control relay malfunction
- Damaged heating element
- Connector connection problems
- SCR control module malfunction
How to Fix
- Check the integrity of the heater power supply circuit
- Measure the resistance of the heating element
- Test the operation of the control relay
- Check the connections and connectors of the circuit
- If necessary, replace the heating element
- Reset the error and check the system operation
Related codes
Error P20BA by Vehicle Brand
FAQ
What does the P20BA code mean?
P20BA is an OBD-II diagnostic trouble code that indicates: Reductant Heater A Control Circuit Performance
What causes a P20BA error code?
The most common causes of P20BA include: Open or short circuit in the heater circuit; Heater control relay malfunction; Damaged heating element; Connector connection problems.
How do I fix a P20BA diagnostic trouble code?
To fix P20BA: Check the integrity of the heater power supply circuit. Measure the resistance of the heating element. Test the operation of the control relay. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20BA?
Yes, but get it checked soon
How much does it cost to fix P20BA?
The estimated repair cost for P20BA is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat