Volvo

Volvo All Engines (2013 Emissions) Fault Code: P21CA00 PID: ACM Reductant Control Module Supply Voltage

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 A137:62 is below normal value

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

Probable cause
1) Open circuit, Common voltage supply
2) Short circuit to ground, Common voltage supply
3) Wiring harness
4) Aftertreatment Diesel Exhaust Fluid (DEF) Pump

Detailed information
1) Possible engine de-rate

Volvo All Engines (2013 Emissions) Fault Code: P21CA00 PID: EMS Reductant Control Module Supply Voltage

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: P21CE9A PID: EMS Reductant Quality Module Performance

Conditions for diagnostic trouble code (DTC):
1) Poor Aftertreatment Diesel Exhaust Fluid (DEF) quality

Observable symptoms
2) Reduced NOx conversion

Probable cause
3) Aftertreatment Diesel Exhaust Fluid (DEF)

Volvo All Engines (2013 Emissions) Fault Code: P220012 PID: EMS NOx Sensor Bank 1 Sensor 1

Circuit description
The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx sensor missing signal.

Conditions for diagnostic trouble code (DTC)
Voltage above normal or shorted high
Ignition key in drive position

Probable cause
1) NOx sensor

Detailed information
Faulty sensor

Volvo All Engines (2013 Emissions) Fault Code: P220013 PID: EMS NOx Sensor Bank 1 Sensor 1

The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx sensor missing signal.

Conditions for diagnostic trouble code (DTC):
1) Current below normal or open circuit
2) Ignition key in drive position

Probable cause
1) NOx sensor
2) Wires between NOx module and NOx sensor

Detailed information
1) Incorrect sensor value

Volvo All Engines (2013 Emissions) Fault Code: P220064 PID: EMS NOx Sensor Bank 1 Sensor 1

Circuit description
The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx sensor missing signal.

Conditions for diagnostic trouble code (DTC)
Abnormal sensor signal

Observable symptoms
None

Probable cause
1) Sensor not mounted in exhaust stream
2) Charge air system leakage
3) Exhaust system leakage
4) EGR Cooler
5) NOx sensor

Detailed information
The component is not activated only when the ignition is in the ON position, or by starting the engine

Volvo All Engines (2013 Emissions) Fault Code: P220093 PID: EMS NOx Sensor Bank 1 Sensor 1

Circuit description
The NOx sensor measures the amount of NOx in the exhaust system. The NOx sensor is connected in the J2284/ISO data link. This diagnostic trouble code (DTC) indicates a NOx monitoring failure. For example; NOx sensor short- or open circuit, NOx sensor removed, NOx sensor missing signal.

Conditions for diagnostic trouble code (DTC)
Calibration value out of range
Internal NOx sensor heating failure

Observable symptoms
None

Probable cause
1) NOx sensor