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Volvo All Engines (2013 Emissions) Fault Code: P20B112 PID: ACM Reductant Heater Coolant Control Valve Control
Volvo All Engines (2013 Emissions) Fault Code: P20B112 PID: ACM Reductant Heater Coolant Control Valve Control
Circuit description
This diagnostic trouble code (DTC) indicates malfunction in the aftertreatment diesel exhaust fluid (DEF) tank heater valve or related wiring. The function of the aftertreatment DEF tank heater valve is to allow engine coolant flow to the aftertreatment DEF tank heater element which keeps the DEF from freezing. Frozen DEF may result in no DEF dosing which causes limited vehicle operation.
Conditions for diagnostic trouble code (DTC)
Short circuit to battery voltage
Probable cause
1) Connector
2) Wiring harness
3) Aftertreatment diesel exhaust fluid (DEF) tank heater valve
4) Dosage electronic control unit (ECU), pump unit
Volvo All Engines (2013 Emissions) Fault Code: P20B111 PID: ACM Reductant Heater Coolant Control Valve Control
Volvo All Engines (2013 Emissions) Fault Code: P20B100 PID: ACM Reductant Heater Coolant Control Valve Control
Volvo All Engines (2013 Emissions) Fault Code: P20AB00 PID: ACM Reductant Injection Air Pressure Control Valve Stuck Closed
Volvo All Engines (2013 Emissions) Fault Code: P20AA00 PID: ACM Reductant Injection Air Pressure Control Valve Stuck Open
Volvo All Engines (2013 Emissions) Fault Code: P20A900 PID: ACM Reductant Injection Air Pressure Control Valve Circuit High
Volvo All Engines (2013 Emissions) Fault Code: P20A800 PID: ACM Reductant Injection Air Pressure Control Valve Circuit Low