Volvo All Engines (2017 Emissions) Fault Code: P205D00 PID: ACM Reductant Tank Temperature Sensor Circuit High
Volvo All Engines (2017 Emissions) Fault Code: P205D00 PID: ACM Reductant Tank Temperature Sensor Circuit High
Circuit description
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)
Check for open-circuit
Observable symptoms
Engine de-rated
Probable cause
1) Connector
2) Wiring harness
3) Reductant Tank Temperature Sensor
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