P20A0
Reductant Purge Control Valve A Circuit /Open
P20A0 is an OBD-II diagnostic trouble code meaning: Reductant Purge Control Valve A Circuit /Open. Common causes: valve control circuit open, short circuit in wiring. Estimated repair cost: $28–89.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Increased consumption of AdBlue reagent
- Increased NOx emissions
- Possible transition to emergency mode
Causes
- Valve control circuit open
- Short circuit in wiring
- Reagent purge valve malfunction
- Problems with the control unit
- Oxidation of contacts in connectors
How to Fix
- Check valve control circuit integrity
- Measure valve winding resistance
- Inspect connectors and contacts for corrosion
- Check the operation of the reagent supply valve
- If necessary, replace the reagent purge valve
Related codes
Error P20A0 by Vehicle Brand
FAQ
What does the P20A0 code mean?
P20A0 is an OBD-II diagnostic trouble code that indicates: Reductant Purge Control Valve A Circuit /Open
What causes a P20A0 error code?
The most common causes of P20A0 include: Valve control circuit open; Short circuit in wiring; Reagent purge valve malfunction; Problems with the control unit.
How do I fix a P20A0 diagnostic trouble code?
To fix P20A0: Check valve control circuit integrity. Measure valve winding resistance. Inspect connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P20A0?
Yes, but get it checked soon
How much does it cost to fix P20A0?
The estimated repair cost for P20A0 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat