Volvo

Volvo All Engines (2013 Emissions) Fault Code: P208A12 PID: ACM Reductant Pump “A” Control

Circuit description
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)
The voltage at pin A137:7 is above normal value

Observable symptoms
No aftertreatment diesel exhaust fluid (DEF) dosage

Probable cause
1) Short circuit to voltage supply, Control wire (-)
2) Short circuit to 5V, Control wire (-)
3) Wiring harness
4) Aftertreatment Diesel Exhaust Fluid (DEF) Pump
5) Aftertreatment Control Module (ACM)

Detailed information
Possible engine de-rate

Volvo All Engines (2013 Emissions) Fault Code: P208A13 PID: ACM Reductant Pump “A” Control

Circuit description
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)
Open circuit

Observable symptoms
No aftertreatment diesel exhaust fluid (DEF) dosage

Probable cause
1) Connector
2) Wiring harness
3) Aftertreatment Diesel Exhaust Fluid (DEF) Pump
4) Aftertreatment Control Module (ACM)

Detailed information
Possible engine de-rate

Volvo All Engines (2013 Emissions) Fault Code: P208A13 PID: EMS Reductant Pump “A” Control

Conditions for diagnostic trouble code (DTC):
1) Active DTCs in EATS System
2) Other DTCs detected may be the reason for the selected DTC to be set. The recommendation is to fault trace and repair the other DTCs first. Repairing the other detected DTCs may change selected DTC to inactive.

Action
1) Aftertreatment Control Module (ACM)
2) Fault trace active diagnostic trouble codes (DTCs) on above components

Volvo All Engines (2013 Emissions) Fault Code: P208B00 PID: ACM Reductant Pump “A” Control Performance/Stuck Off

Circuit description
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)
Aftertreatment Diesel Exhaust Fluid (DEF) Pump Motor Speed Below normal

Observable symptoms
No aftertreatment diesel exhaust fluid (DEF) dosage

Probable cause
1) Frozen Aftertreatment Diesel Exhaust Fluid (DEF) Pump
2) Restricted Aftertreatment Diesel Exhaust Fluid (DEF) Pump
3) Aftertreatment Diesel Exhaust Fluid (DEF) Pump

Detailed information
Possible engine de-rate

Volvo All Engines (2013 Emissions) Fault Code: P208C00 PID: ACM Aftertreatment Reagent Pump Control Short Circuit Low

Circuit description
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)
The voltage at pin A137:7 is below normal value

Observable symptoms
No aftertreatment diesel exhaust fluid (DEF) dosage

Probable cause
1) Short circuit to ground, Control wire (-)
2) Wiring harness
3) Aftertreatment Diesel Exhaust Fluid (DEF) Pump
4) Aftertreatment Control Module (ACM)

Volvo All Engines (2013 Emissions) Fault Code: P208C00 PID: EMS Aftertreatment Reagent Pump Control Short Circuit Low

Circuit description
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)
The voltage at pin A137:7 is below normal value

Observable symptoms
No aftertreatment diesel exhaust fluid (DEF) dosage

Probable cause
1) Short circuit to ground, Control wire (-)
2) Wiring harness
3) Aftertreatment Diesel Exhaust Fluid (DEF) Pump
4) Aftertreatment Control Module (ACM)

Detailed information
Possible engine de-rate

Volvo All Engines (2013 Emissions) Fault Code: P208D00 PID: ACM Aftertreatment Reagent Pump Control Short Circuit High

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 A137:7 is above normal value

Observable symptoms
1) No aftertreatment diesel exhaust fluid (DEF) dosage

Probable cause
1) Short circuit to voltage supply, Control wire (-)
2) Short circuit to 5V, Control wire (-)
3) Wiring harness
4) Aftertreatment Diesel Exhaust Fluid (DEF) Pump
5) Aftertreatment Control Module (ACM)

Detailed information
1) Possible engine de-rate

Volvo All Engines (2013 Emissions) Fault Code: P208D00 PID: ACM Aftertreatment Reagent Pump Control Short Circuit High

Circuit description
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)
The voltage at pin A137:7 is above normal value

Observable symptoms
No aftertreatment diesel exhaust fluid (DEF) dosage

Probable cause
1) Short circuit to voltage supply, Control wire (-)
2) Short circuit to 5V, Control wire (-)
3) Wiring harness
4) Aftertreatment Diesel Exhaust Fluid (DEF) Pump
5) Aftertreatment Control Module (ACM)

Detailed information
Possible engine de-rate