P20A5
Reductant purge control valve - Stuck closed
P20A6
Reductant injection air pressure control valve - Open circui…
P20A4
Reductant purge control valve - Stuck open
P20A2
Reductant purge control valve - Circuit low
P20A3
Reductant purge control valve - Circuit high
P20A1
Reductant purge control valve - Performance
P20A0
Reductant purge control valve - Open circuit
P209E
Reductant injection air pressure sensor A/B correlation
P209F
Reductant tank heater control performance
P209D
Reductant injection air pressure sensor B circuit - High