Volvo All Engines (2017 Emissions) Fault Code: P20BC00 PID: ACM Aftertreatment Reagent Hose Heater 1 Short Circuit High
Volvo All Engines (2017 Emissions) Fault Code: P20BC00 PID: ACM Aftertreatment Reagent Hose Heater 1 Short Circuit High
Circuit description
This diagnostic trouble code (DTC) indicates a malfunction at the diesel exhaust fluid (DEF) line heater 1. The DEF line and line connection between the DEF tank and DEF dosing valve is electrically heated by the DEF line heater 1. The DEF line heater 1 is normally OFF and is commended ON by the aftertreatment control module (ACM) when the ambient air temperature (AAT) and DEF tank temperature are below calibrated threshold. The ACM controls the DEF heater 1 by supplying battery voltage to the common voltage supply circuit and grounding control wire (-) circuit using pulse width modulated signal.
Conditions for diagnostic trouble code (DTC)
The voltage at pin A137:28 is above normal value
Observable symptoms
Ammonia smell can occur if the aftertreatment diesel exhaust fluid (DEF) warmed too much
Probable cause
1) Connector
2) Wiring harness
3) Aftertreatment Diesel Exhaust Fluid (DEF) Line Heater 1
Related products
-
Volvo All Engines (2004 Emissions) Fault Code: PPID 35 FMI 4 EGR Mass Flow Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 252 FMI 9 Date Data Failure
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 102 FMI 5 Boost Air Pressure / Temperature Sensor
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: PPID 35 FMI 3 EGR Mass Flow Sensor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 412 FMI 3 EGR Temperature After Cooler
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 228 FMI 11 Calibration Factor
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 26 FMI 3 Fan Speed
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 108 FMI 2 Ambient Pressure 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 412 FMI 5 EGR Temperature After Cooler
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PPID 35 FMI 9 EGR Mass Flow 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 146 FMI 7 EGR Control Valve
All Engines (2004 Emissions) -
Volvo All Engines (2004 Emissions) Fault Code: PID 26 FMI 8 Fan Speed
All Engines (2004 Emissions)
