P20BA
Reductant heater A control - Performance
P20B8
Reductant metering unit heater control - Circuit high
P20B7
Reductant metering unit heater control - Circuit low
P20B6
Reductant metering unit heater control - Performance
P20B5
Reductant metering unit heater control - Open circuit
P20B4
Reductant heater coolant control valve - Circuit high
P20B3
Reductant heater coolant control valve - Circuit low
P20B2
Reductant heater coolant control valve - Performance
P20B1
Reductant heater coolant control valve - Open circuit
P20AF
Reductant metering unit temperature sensor circuit - High