The aftertreatment control module (ACM) uses the aftertreatment diesel exhaust fluid (DEF) dosing pressure sensor value to adjust and maintain DEF pressure at the DEF dosing valve by controlling DEF pump speed. If the pressure decreases below expected value when the pump is in initial pressure build-up mode or if the pressure increases above expected value when pump is in idle speed mode, the ACM considers DEF pressure outside of normal operating range and indicates a malfunction in a DEF dosing pressure sensor. Conditions for diagnostic trouble code (DTC):1) The voltage at pin A137:30 is less than 0.2?V Observable symptoms1)...

The aftertreatment control module (ACM) uses the aftertreatment diesel exhaust fluid (DEF) dosing pressure sensor value to adjust and maintain DEF pressure at the DEF dosing valve by controlling DEF pump speed. If the pressure decreases below expected value when the pump is in initial pressure build-up mode or if the pressure increases above expected value when pump is in idle speed mode, the ACM considers DEF pressure outside of normal operating range and indicates a malfunction in a DEF dosing pressure sensor. Conditions for diagnostic trouble code (DTC):1) The voltage at pin A137:30 is more than 4.75?V Observable symptoms1)...

Fault Condition:Adaption too high Possible Causes:1) Nox sensor2) Aftertreatment Diesel Exhaust Fluid (DEF) dosing failure Volvo All Engines (2010 Emissions) Fault Code: SPN 4334 FMI 5 PID: PPID 273 Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Volvo All Engines (2010 Emissions) Fault Code: SPN 4334 FMI 4 PID: PPID 273 Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Volvo All Engines (2010 Emissions) Fault Code: SPN 4334 FMI 2 PID: PPID 273 Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Volvo All Engines (2010 Emissions) Fault Code: SPN 412 FMI 5 PID: Engine Exhaust Gas Recirculation Temperature Volvo All Engines (2010 Emissions)...

Fault Condition:Adaption too low Possible Causes:1) Nox sensor2) Aftertreatment Diesel Exhaust Fluid (DEF) dosing failure3) DEF Quality Volvo All Engines (2010 Emissions) Fault Code: SPN 4339 FMI 0 PID: PSID 90 Aftertreatment SCR Feedback Control Status Volvo All Engines (2010 Emissions) Fault Code: SPN 4334 FMI 5 PID: PPID 273 Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Volvo All Engines (2010 Emissions) Fault Code: SPN 4334 FMI 4 PID: PPID 273 Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Volvo All Engines (2010 Emissions) Fault Code: SPN 4334 FMI 2 PID: PPID 273 Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Volvo...

Fault Condition:Adaption too high Possible Causes:1) Nox sensor2) Aftertreatment Diesel Exhaust Fluid (DEF) dosing failure Volvo All Engines (2010 Emissions) Fault Code: SPN 4339 FMI 1 PID: PSID 90 Aftertreatment SCR Feedback Control Status Volvo All Engines (2010 Emissions) Fault Code: SPN 4339 FMI 0 PID: PSID 90 Aftertreatment SCR Feedback Control Status Volvo All Engines (2010 Emissions) Fault Code: SPN 4334 FMI 5 PID: PPID 273 Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Volvo All Engines (2010 Emissions) Fault Code: SPN 4334 FMI 4 PID: PPID 273 Aftertreatment 1 SCR Dosing Reagent Absolute Pressure Volvo All Engines (2010 Emissions)...