Volvo All Engines (2017 Emissions) Fault Code: U02A200 PID: ACM Lost Communication With Reductant Quality Module

Volvo All Engines (2017 Emissions) Fault Code: U02A200 PID: ACM Lost Communication With Reductant Quality Module

Circuit description
Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor has an indicator lamp and gauge in the instrument cluster. A solid lamp comes on when there is approximately 16% DEF remaining in the tank. A flashing lamp indicates when there is approximately 4% DEF remaining in the tank. A 25% engine derate is possible if the DEF is not refilled above the red line on the gauge at the next engine start up.

Conditions for diagnostic trouble code (DTC)
Communication failed

Probable cause
1) The electronic control unit (ECU) has a software fault or the wrong software version
2) Control unit has no supply voltage
3) Connector