Volvo

Volvo All Engines (2013 Emissions) Fault Code: P206400 PID: ACM Aftertreatment/Reagent Pump Control Low Side 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)
Short circuit to battery voltage on A137:8

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: P206A12 PID: ACM Reductant Injection Air Pressure Control Valve Control

Conditions for diagnostic trouble code (DTC)
The voltage at pin A174.A:21 is above normal value

Diagnostic operating conditions
Ignition key in ON position

Observable symptoms
Uncontrolled air consumption

Probable cause
1) Short circuit to higher voltage
2) Connector
3) Wiring harness
4) Actuator
5) Aftertreatment Control Module (ACM)

Volvo All Engines (2013 Emissions) Fault Code: P206A13 PID: ACM Reductant Quality

Circuit description
The DEF quality, level, and temperature sensor detects the concentration of fluid in the DEF tank. The sensor is connected to the DL7 data link which sends a signal to the Aftertreatment Control Module (ACM) and Engine Control Module (ECM). The relevant control module interprets the information and activates a lamp in the instrument cluster, inducement mode or both if necessary

Probable cause
1) Open circuit in component
2) Internal fault in component

Volvo All Engines (2013 Emissions) Fault Code: P206B64 PID: EMS Reductant Quality Sensor Range/Performance

Probable cause
1) DEF quality, level and temperature sensor
2) Contaminated fluid
3) Wiring harness

Volvo All Engines (2013 Emissions) Fault Code: P206C00 PID: ACM Reductant Quality Sensor Low

Circuit description
The DEF quality, level, and temperature sensor detects the concentration of fluid in the DEF tank. The sensor is connected to the DL7 data link which sends a signal to the Aftertreatment Control Module (ACM) and Engine Control Module (ECM). The relevant control module interprets the information and activates a lamp in the instrument cluster, inducement mode or both if necessary

Probable cause
1) Short circuit in component
2) Internal fault in component

Volvo All Engines (2013 Emissions) Fault Code: P207F00 PID: EMS Reductant Quality

Circuit description
This function indicates that the NOx conversion efficiency is not correct

Conditions for diagnostic trouble code (DTC)
Too high NOx emissions

Observable symptoms
Vehicle speed is less than 5?mph

Probable cause
1) Dosing too low
2) Wrong liquid in tank
3) Aftertreatment selective catalytic reduction (SCR) catalyst
4) Aftertreatment diesel exhaust fluid (DEF) dosage valve
5) Restricted filter
6) Aftertreatment Hydrocarbon Doser, over-fueling

Volvo All Engines (2013 Emissions) Fault Code: P207F9A PID: EMS Reductant Quality

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

Observable symptoms
Reduced NOx conversion

Probable cause
1) Aftertreatment Diesel Exhaust Fluid (DEF)

Volvo All Engines (2013 Emissions) Fault Code: P208064 PID: EMS Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1

Circuit description
This diagnostic function indicates malfunction at the exhaust gas temperature (EGT) sensor. The purpose of the exhaust gas sensor is to contribute the relevant temperatures required for the temperature regulated aftertreatment diesel particulate filter regeneration control. A faulty EGT sensor can result with a failed aftertreatment (DPF) regeneration.

Conditions for diagnostic trouble code (DTC)
The sensor value is not within an expected range
Too high of temperature difference compared to the other DPF temperature sensors

Observable symptoms
Regeneration not possible

Probable cause
1) Charge air system leakage
2) Exhaust system leakage
3) Aftertreatment exhaust gas temperature (EGT) sensors installed in the incorrect location on the aftertreatment diesel particulate filter (DPF)
4) Wiring harness
5) Connector
6) Exhaust Gas Temperature (EGT) Sensor

Volvo All Engines (2013 Emissions) Fault Code: P208464 PID: EMS Exhaust Gas Temperature Sensor Circuit Range/Performance (Bank 1 Sensor 2)

This diagnostic function indicates malfunction at the exhaust gas temperature (EGT) sensor. The purpose of the exhaust gas sensor is to contribute the relevant temperatures required for the temperature regulated aftertreatment diesel particulate filter regeneration control. A faulty EGT sensor can result with a failed aftertreatment (DPF) regeneration.

Conditions for diagnostic trouble code (DTC):
1) The sensor value is not within an expected range
2) Too high of temperature difference compared to the other DPF temperature sensors

Observable symptoms
1) Regeneration not possible

Probable cause
1) Exhaust system leakage
2) Aftertreatment exhaust gas temperature (EGT) sensors installed in the incorrect location on the aftertreatment diesel particulate filter (DPF)
3) Wiring harness
4) Connector
5) Exhaust Gas Temperature (EGT) Sensor