The Compressor Discharge Temperature Sensor is used to monitor the temperature of the air coming from the compressor side of the turbocharger.
The sensor signals are used for engine protection for high compressor out temperature and are monitored by the (ECU) Engine Control Unit.
The engine control module (ECM) will set a diagnostic trouble code (DTC) and derate the engine to avoid engine damage if the sensor signal is not within predetermined limits, or the signal is not rational.
Volvo All Engines (2010 Emissions) Fault Code: SPN 2629 FMI 15 PID: 404 Engine Turbocharger 1 Compressor Outlet Temperature – Least Severe Level
Volvo All Engines (2010 Emissions) Fault Code: SPN 2629 FMI 0 PID: 404 Engine Turbocharger 1 Compressor Outlet Temperature
Volvo All Engines (2010 Emissions) Fault Code: SPN 252 FMI 9 PID: Date
Volvo All Engines (2010 Emissions) Fault Code: SPN 251 FMI 9 PID: Time
Volvo All Engines (2010 Emissions) Fault Code: SPN 251 FMI 2 PID: Time
Volvo All Engines (2010 Emissions) Fault Code: SPN 251 FMI 19 PID: Time