The function identifies the exhaust temperature and indicates malfunction in the exhaust system. The evaluation is done at engine load after an engine cold start via three different temperature sensors. The exhaust gas temperature is used to determine when regeneration will run.
Conditions for diagnostic trouble code (DTC):
1) Open circuit
2) Short circuit to battery voltage
3) Replace with phrase describing observable symptom or hide
Probable cause
1) Exhaust Gas Temperature (EGT) Sensor
2) Wiring harness
3) Connector
4) Dosage electronic control unit (ECU) (ACM)
Volvo All Engines (2010 Emissions) Fault Code: SPN 173 FMI 2 PID: Engine Exhaust Gas Temperature
Volvo All Engines (2010 Emissions) Fault Code: SPN 173 FMI 16 PID: Engine Exhaust Gas Temperature – Moderately Severe Level
Volvo All Engines (2010 Emissions) Fault Code: SPN 173 FMI 15 PID: Engine Exhaust Gas Temperature – Least Severe Level
Volvo All Engines (2010 Emissions) Fault Code: SPN 171 FMI 5 PID: Ambient Air Temperature
Volvo All Engines (2010 Emissions) Fault Code: SPN 171 FMI 19 PID: 171 Ambient Air Temperature
Volvo All Engines (2010 Emissions) Fault Code: SPN 171 FMI 14 PID: Ambient Air Temperature
