P20A5
Reductant Purge Control Valve A Stuck Closed
P20A5 is an OBD-II diagnostic trouble code meaning: Reductant Purge Control Valve A Stuck Closed. Common causes: mechanical valve jamming, contamination or crystallization of the reductant. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Possible transition to emergency mode
- Increased release of nitrogen oxides
- SCR system error message on instrument panel
Causes
- Mechanical valve jamming
- Contamination or crystallization of the reductant
- Valve wiring problems
- Control relay malfunction
- Control unit software error
How to Fix
- Check the condition of the reductant purge valve
- Check the integrity of wiring and connections
- Clean or replace a stuck valve
- Check the quality of the reductant in the system
- Reset error and test drive
Related codes
Error P20A5 by Vehicle Brand
FAQ
What does the P20A5 code mean?
P20A5 is an OBD-II diagnostic trouble code that indicates: Reductant Purge Control Valve A Stuck Closed
What causes a P20A5 error code?
The most common causes of P20A5 include: Mechanical valve jamming; Contamination or crystallization of the reductant; Valve wiring problems; Control relay malfunction.
How do I fix a P20A5 diagnostic trouble code?
To fix P20A5: Check the condition of the reductant purge valve. Check the integrity of wiring and connections. Clean or replace a stuck valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20A5?
Yes, but get it checked soon
How much does it cost to fix P20A5?
The estimated repair cost for P20A5 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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