VOLVOUU All Engines (2017 Emissions) Fault Code: P054401 PID: ACM Exhaust Gas Temperature Sensor Bank 1 Sensor 1

VOLVOUU All Engines (2017 Emissions) Fault Code: P054401 PID: ACM Exhaust Gas Temperature Sensor Bank 1 Sensor 1

Conditions for diagnostic trouble code (DTC):
1) The voltage at pin A137:42 is more than 4.84 V
2) Ignition key in ON position

Observable symptoms
1) Regeneration not possible

Probable cause
1) Wiring harness between component connector and electronic control unit (ECU) connector
2) Open circuit, Signal wire
3) Open circuit, Ground wire
4) Pre-catalyst, Exhaust Gas Temperature (EGT) Sensor