Volvo All Engines (2017 Emissions) Fault Code: P20B172 PID: ACM Reductant Heater Coolant Control Valve Control
Volvo All Engines (2017 Emissions) Fault Code: P20B172 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)
DEF in tank temperature too high
Probable cause
1) Aftertreatment Diesel Exhaust Fluid (DEF) Tank Heater Valve
Related products
-
Volvo All Engines (2004 Emissions) Fault Code: PID 102 FMI 2 Boost Air Pressure / Temperature Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 158 FMI 3 Battery Voltage
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: SID 21 FMI 3 Cam Speed Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 105 FMI 4 Boost Air Pressure / Temperature Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PPID 35 FMI 5 EGR Mass Flow Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 412 FMI 9 EGR Temperature After Cooler
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PPID 35 FMI 3 EGR Mass Flow Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: SID 146 FMI 5 EGR Control Valve
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 105 FMI 5 Boost Air Pressure / Temperature Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 26 FMI 8 Fan Speed
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 49 FMI 9 ABS Status
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 412 FMI 4 EGR Temperature After Cooler
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PPID 55 FMI 5 ECU Temperature
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: SID 21 FMI 2 Cam Speed Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: SID 146 FMI 12 EGR Control Valve
All Engines (2004 Emissions)
