Volvo All Engines (2017 Emissions) Fault Code: P205C00 PID: ACM Aftertreatment Reagent Tank Temperature Short Circuit Low
Volvo All Engines (2017 Emissions) Fault Code: P205C00 PID: ACM Aftertreatment Reagent Tank Temperature Short Circuit Low
Aftertreatment Control Module (ACM) monitors DEF tank temperature and uses it to control the Aftertreatment DEF Tank Heater valve to keep the DEF from freezing.
This temperature monitoring is also used to avoid stopped DEF dosing due to high DEF tank temperatures. If the DEF temperature is too high, reverse flow will be activated, if the temperature stays high for a short duration, a DTC is set.
Conditions for diagnostic trouble code (DTC):
1) Short circuit to lower voltage
Observable symptoms
1) None
2) Probable cause
3) Connector
4) Wiring harness
5) Reductant Tank Temperature Sensor
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