When it comes to troubleshooting engine codes, the Dodge Code P0197 is one of the most common. This code indicates that the Powertrain Control Module (PCM) is unable to detect the Engine Oil Temperature (EOT) Sensor circuit. The Engine Oil Temperature Sensor is a variable resistor that measures the temperature of the engine oil. The EOT Sensor resistance is high when the oil temperature is low, and low when the oil temperature is high. Understanding the root causes and possible solutions for the Dodge Code P0197 can help you diagnose and repair the engine quickly and efficiently.
Causes and Solutions for Dodge Code P0197
| Cause | Solution |
|---|---|
| ENGINE OIL TEMP SIGNAL CIRCUIT SHORTED TO GROUND | Inspect the wiring and connectors for any signs of damage or corrosion |
| ENGINE OIL TEMP SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND | Check the wiring and connectors for any signs of wear and tear |
| ENGINE OIL TEMPERATURE SENSOR | Replace the EOT Sensor if it is found to be faulty |
| POWERTRAIN CONTROL MODULE (PCM) | Replace the PCM if it is found to be defective |
Engine Oil Temperature Signal Circuit Shorted to Ground
The first possible cause of the Dodge Code P0197 is an engine oil temperature signal circuit that is shorted to ground. In this case, the wiring and connectors should be carefully inspected for any signs of damage or corrosion. If any defects are found, they should be repaired or replaced as necessary.
Engine Oil Temperature Signal Circuit Shorted to Sensor Ground
The second potential cause of the Dodge Code P0197 is an engine oil temperature signal circuit that is shorted to the sensor ground. In this case, the wiring and connectors should be checked for any signs of wear and tear. If any defects are found, they should be repaired or replaced as necessary.
Engine Oil Temperature Sensor
The third possible cause of the Dodge Code P0197 is a faulty engine oil temperature sensor. The EOT Sensor should be tested to determine if it is functioning correctly. If it is found to be defective, it should be replaced with a new one.
Powertrain Control Module (PCM)
The fourth possible cause of the Dodge Code P0197 is a defective powertrain control module (PCM). The PCM should be tested to determine if it is functioning correctly. If it is found to be defective, it should be replaced with a new one.
Conclusion
The Dodge Code P0197 can be caused by several different issues, including a faulty engine oil temperature sensor, a shorted engine oil temperature signal circuit, or a defective powertrain control module. Careful inspection and testing of the components involved can help to quickly and efficiently diagnose and repair the issue, allowing the vehicle to get back on the road and avoiding costly repairs or replacements. To prevent issues such as the Dodge Code P0197 from occurring in the future, regular maintenance and inspection of engine components such as the EOT Sensor should be performed.
https://www.youtube.com/watch?v=y4zzn1LHfQs