Pinpoint Test RB: Exhaust Gas Temperature (EGT) Sensor
WARNING:
Manual regeneration of the particulate filter causes the exhaust gas to quickly get very hot. Initiate a manual regeneration only when the vehicle is on the ground with the area around the tailpipe free of people, obstructions, foreign material or other items. Failure to follow these instructions may result in serious personal injury.
NOTE:
Regeneration may occur during normal operation. During regeneration, diagnostic procedures may display biased values. If a regeneration occurs during diagnostic procedures, allow the process to complete before continuing diagnostics.
Normal Operation and Fault Conditions
Refer to the DTC Fault Trigger Conditions.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PCM P0544:00 | Exhaust Gas Temperature Sensor Circuit - Bank 1 Sensor 1: No Sub Type Information | Sets when the PCM detects, after 5 minutes of driving following a 6 hour soak, the exhaust gas temperature bank 1, sensor 1 sensor temperature does not correlate to the modeled temperature of 170°C (338°F). The PCM monitors the operation of the exhaust gas temperature bank 1, sensor 1 to determine if the sensor responds to the increase in temperature of the exhaust gas during vehicle operation. The PCM then compares the measured temperature to a modeled value. |
| PCM P0545:00 | Exhaust Gas Temperature Sensor Circuit Low - Bank 1 Sensor 1: No Sub Type Information | Sets when the PCM detects the exhaust gas temperature bank 1, sensor 1 voltage is less than 0.10 volt for greater than 15 seconds. |
| PCM P0546:00 | Exhaust Gas Temperature Sensor Circuit High - Bank 1 Sensor 1: No Sub Type Information | Sets when the PCM detects the exhaust gas temperature bank 1, sensor 1 voltage is greater than 4.90 volts for greater than 15 seconds. |
| PCM P0547:00 | Exhaust Gas Temperature Sensor Circuit - Bank 2 Sensor 1: No Sub Type Information | Sets when the PCM detects, after 5 minutes of driving following a 6 hour soak, the exhaust gas temperature bank 2, sensor 1 temperature does not correlate to the modeled temperature of 170°C (338°F). The PCM monitors the operation of the exhaust gas temperature bank 2, sensor 1 to determine if the sensor responds to the increase in temperature of the exhaust gas during vehicle operation. The PCM then compares the measured temperature to a modeled value. |
| PCM P0548:00 | Exhaust Gas Temperature Sensor Circuit Low - Bank 2 Sensor 1: No Sub Type Information | Sets when the PCM detects the exhaust gas temperature bank 2, sensor 1 voltage is less than 0.10 volt for greater than 15 seconds. |
| PCM P0549:00 | Exhaust Gas Temperature Sensor Circuit High - Bank 2 Sensor 1: No Sub Type Information | Sets when the PCM detects the exhaust gas temperature bank 2, sensor 1 voltage is greater than 4.90 volts for greater than 15 seconds. |
Possible Sources
- Exhaust leak
- Exhaust gas temperature sensor circuitry concern
- Exhaust gas temperature sensor (5J213)
- PCM (12A650)