Faulty Exhaust Gas Temperature Sensor (EGTS) Bank 1 Sensor 3
Exhaust Gas Temperature Sensor Bank 1 Sensor 3 harness is open or shorted
Exhaust Gas Temperature Sensor Bank 1 Sensor 3 circuit poor electrical connection
Excessive particulate matter buildup on sensor
Engine Light ON (or Service Engine Soon Warning Light)
This fault code is stored in the Engine Control Module (ECM) when a malfunction with the Exhaust Gas Temperature Sensor (EGTS) is detected. Manufacturers may use multiple temperature sensors to monitor the exhaust gas temperature during diesel particle filter regeneration, NOx accumulator regeneration, to ensure the catalytic converter is up to operating temperature and that components will not be damaged by over-heating. The control module can carry out a plausibility check to self-test each temperature sensor. The sensor can be a Negative Temperature Coefficient (NTC) or a Positive Temperature Coefficient (PTC) thermistor.