Volvo

When the ignition key is switched to the RUN position, battery voltage is supplied though fuse 64 to the aftertreatment control module (ACM). Conditions for diagnostic trouble code (DTC):1) Ignition switch voltage shorted low Probable cause1) Chassis Harness2) Cab harness3) Fuse: F69 Volvo All Engines (2010 Emissions) Fault Code: SPN 2836 FMI 3 PID: PSID 49 Battery 1 Potential 2 (Voltage), Switched Volvo All Engines (2010 Emissions) Fault Code: SPN 2791 FMI 7 PID: SID 146 Engine Exhaust Gas Recirculation (EGR) Valve Control Volvo All Engines (2010 Emissions) Fault Code: SPN 2791 FMI 5 PID: SID 146 Engine Exhaust Gas...

Aftertreatment Control Module (ACM) monitors DEF tank temperature and uses it to control the Aftertreatment DEF Tank Heater valve to keep the DEF from freezing.This temperature monitoring is also used to avoid stopped DEF dosing due to high DEF tank temperatures. If the DEF temperature is too high, reverse flow will be activated, if the temperature stays high for a short duration, a DTC is set. Conditions for diagnostic trouble code (DTC):1) DEF Temperature above 70??C (158??F) Observable symptoms1) No aftertreatment diesel exhaust fluid (DEF) dosage Probable cause1) Extreme driving conditions (High ambient temperature)2) DEF Tank too close to hot...

Aftertreatment Control Module (ACM) monitors DEF tank temperature and uses it to control the Aftertreatment DEF Tank Heater valve to keep the DEF from freezing.This temperature monitoring is also used to avoid stopped DEF dosing due to high DEF tank temperatures. If the DEF temperature is too high, reverse flow will be activated, if the temperature stays high for a short duration, a DTC is set. Conditions for diagnostic trouble code (DTC):1) The temperature in the tank is below normal Probable cause1) Aftertreatment diesel exhaust fluid (DEF) tank, Temperature Sensor2) Wiring harness3) Aftertreatment diesel exhaust fluid (DEF) tank heater valve4)...

Aftertreatment Control Module (ACM) monitors DEF tank temperature and uses it to control the Aftertreatment DEF Tank Heater valve to keep the DEF from freezing.This temperature monitoring is also used to avoid stopped DEF dosing due to high DEF tank temperatures. If the DEF temperature is too high, reverse flow will be activated, if the temperature stays high for a short duration, a DTC is set. Conditions for diagnostic trouble code (DTC):1) Short circuit to ground in the component or wiring2) Short circuit to lower voltage Observable symptoms1) None Probable cause1) Connector2) Wiring harness3) Short circuit to ground, Signal wire4)...

Aftertreatment Control Module (ACM) monitors DEF tank temperature and uses it to control the Aftertreatment DEF Tank Heater valve to keep the DEF from freezing.This temperature monitoring is also used to avoid stopped DEF dosing due to high DEF tank temperatures. If the DEF temperature is too high, reverse flow will be activated, if the temperature stays high for a short duration, a DTC is set. Conditions for diagnostic trouble code (DTC):1) Open circuit between Electronic Control Unit and Sensor Observable symptoms1) Engine de-rated Probable cause1) Connector2) Wiring harness3) Short circuit to higher voltage, Signal wire4) Open circuit on signal...