VOLVOUU All Engines (2013 Emissions) Fault Code: P204A01 PID: ACM Reductant Pressure Sensor

VOLVOUU All Engines (2013 Emissions) Fault Code: P204A01 PID: ACM Reductant Pressure Sensor

Conditions for diagnostic trouble code (DTC):
1) Open circuit
2) Short circuit

Diagnostic operating conditions
1) Ignition key in ON position

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

Probable cause
1) Wiring harness
2) Pressure sensor
3) Aftertreatment diesel exhaust fluid (DEF) pump, Internal fault