The following components are connected to a common 12?V supply
R31: Aftertreatment Diesel Exhaust Fluid (DEF) Line Heater 1
R29: Aftertreatment Diesel Exhaust Fluid (DEF) Line Heater 3
A138: Aftertreatment Diesel Exhaust Fluid (DEF) Return Valve
A138: Aftertreatment Diesel Exhaust Fluid (DEF) Pump Motor
Y81: Aftertreatment Diesel Exhaust Fluid (DEF) Tank Heater Valve
If an abnormal voltage or current is detected on the common supply a DTC is set
Conditions for diagnostic trouble code (DTC):
1) The voltage at pin A137:44 is above normal value
Observable symptoms
1) None
Probable cause
1) Wiring harness
2) Connector
3) R31: Aftertreatment Diesel Exhaust Fluid (DEF) Line Heater 1
4) R29: Aftertreatment Diesel Exhaust Fluid (DEF) Line Heater 3
5) A138: Aftertreatment Diesel Exhaust Fluid (DEF) Return Valve
6) A138: Aftertreatment Diesel Exhaust Fluid (DEF) Pump Motor
7) Y81: Aftertreatment Diesel Exhaust Fluid (DEF) Tank Heater Valve
8) A137: Aftertreatment Control Module (ACM)
Related products
-
Allison 1000 & 2000 Gen 5 Fault Code:U0073 CAN Communication Bus 1 Off
1000 & 2000 Gen 5
-
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 98 FMI 4 Engine Oil Level / Temperature Sensor
All Engines (2004 Emissions) -
Detroit DD13 EPA10 (2010-13) Fault Code: SPN 628 FMI 14 (CPC) XFLASH Failure
DD13 EPA10 (2010-13) -
Volvo All Engines (2017 Emissions) Fault Code: P065711 PID: EMS Actuator Supply Voltage “A” Circuit / Open
All Engines (2017 Emissions) -
Volvo All Engines (2017 Emissions) Fault Code: P10AF00 PID: ACM Reductant Pump “A” Control Low Side High
All Engines (2017 Emissions) -
Volvo All Engines (2010 Emissions) Fault Code: SPN 631 FMI 3 PID: PSID 7 Calibration memory
All Engines (2010 Emissions)