P20C6
Reductant Heater D Control Circuit Performance
P20C6 is an OBD-II diagnostic trouble code meaning: Reductant Heater D Control Circuit Performance. Common causes: open or short circuit in the heater circuit, reagent heating element malfunction. Estimated repair cost: $28–133.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased fuel consumption
- Incorrect operation of the SCR system
- Possible starting problems in cold weather
Causes
- Open or short circuit in the heater circuit
- Reagent heating element malfunction
- Problems with the relay or circuit fuse
- SCR control unit malfunction
- Corroded or damaged connectors
How to Fix
- Check the integrity of the heater circuit
- Check the resistance of the heating element
- Inspect connectors and wiring harness for damage
- Check the operation of relays and fuses
- If necessary, replace the heating element
Related codes
Error P20C6 by Vehicle Brand
FAQ
What does the P20C6 code mean?
P20C6 is an OBD-II diagnostic trouble code that indicates: Reductant Heater D Control Circuit Performance
What causes a P20C6 error code?
The most common causes of P20C6 include: Open or short circuit in the heater circuit; Reagent heating element malfunction; Problems with the relay or circuit fuse; SCR control unit malfunction.
How do I fix a P20C6 diagnostic trouble code?
To fix P20C6: Check the integrity of the heater circuit. Check the resistance of the heating element. Inspect connectors and wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20C6?
Yes, but get it checked soon
How much does it cost to fix P20C6?
The estimated repair cost for P20C6 is $28–133. Actual cost depends on your vehicle, location, and labor rates.
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