P202C
Reductant Tank Heater Control Circuit High
P202C is an OBD-II diagnostic trouble code meaning: Reductant Tank Heater Control Circuit High. Common causes: open or short circuit in the heater circuit, reagent tank heating element malfunction. Estimated repair cost: $28–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- SCR System Error Message
- Increased NOx emissions
- Problems starting in cold weather
Causes
- Open or short circuit in the heater circuit
- Reagent tank heating element malfunction
- Problems with the relay or circuit fuse
- Engine control unit malfunction
- Corrosion of contacts or connectors
How to Fix
- Check heater circuit fuses and relays
- Inspect the wiring harness for damage
- Check the resistance of the heating element
- Scan the control unit for other errors
- If necessary, replace the heating element or wiring
Related codes
Error P202C by Vehicle Brand
FAQ
What does the P202C code mean?
P202C is an OBD-II diagnostic trouble code that indicates: Reductant Tank Heater Control Circuit High
What causes a P202C error code?
The most common causes of P202C include: Open or short circuit in the heater circuit; Reagent tank heating element malfunction; Problems with the relay or circuit fuse; Engine control unit malfunction.
How do I fix a P202C diagnostic trouble code?
To fix P202C: Check heater circuit fuses and relays. Inspect the wiring harness for damage. Check the resistance of the heating element. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P202C?
Yes, but get it checked soon
How much does it cost to fix P202C?
The estimated repair cost for P202C is $28–167. Actual cost depends on your vehicle, location, and labor rates.
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