OBD code P0198 indicates an issue with the Engine Oil Temperature sensor circuit.
Symptoms include the Engine Light being ON.
This code is commonly caused by a faulty sensor, open/shorted sensor harness, or poor electrical connection.
While not a critical issue, it should be addressed promptly.
To fix, inspect the sensor, wiring harness, and connectors for any damage or corrosion.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the p0198 OBD Code
The vehicle may experience issues related to the engine coolant temperature sensor circuit high input.
- Symptoms: Engine Light ON.
- Temperature gauge reading may be erratic.
- Loss of power during acceleration.
Causes of the p0198 OBD Code
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Possible reasons for fault code P0198 include issues with the engine oil temperature sensor circuit.
- P0198 can be caused by a faulty Engine Oil Temperature sensor.
- An open or shorted Engine Oil Temperature sensor harness.
- A poor electrical connection in the Engine Oil Temperature sensor circuit.
Fixing Error Code p0198 Step By Step
Address the issue by inspecting the engine oil temperature sensor circuit for fault code P0198.
- To fix OBDII code P0198, first, review the possible causes related to the engine oil temperature sensor circuit.
- Visually inspect the wiring harness and connectors for any signs of damage.
- Check the connector pins for any issues like being broken, bent, pushed out, or corroded.
- Replace the engine oil temperature sensor if necessary.
- Clear the fault codes and perform a test drive to verify that the issue has been resolved.
Cost Of Fixing p0198 Fault Code
Diagnosing and repairing fault code P0198 typically involves testing and replacing the Engine Oil Temperature (EOT) sensor.
The cost to diagnose and fix OBD code P0198 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop fees, and the complexity of the repair needed.
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Details of the p0198 OBD Code
P0198 indicates a problem with the engine oil temperature sensor circuit high input.
OBD code P0198 means that the Engine Oil Temperature (EOT) sensor circuit has a high voltage input.
This code is triggered by the Engine Control Module (ECM) when it detects that the voltage signal from the EOT sensor is higher than the specified range.
The EOT sensor is responsible for monitoring the temperature of the engine oil.
It provides this information to the ECM, which uses it to adjust various engine parameters for optimal performance and efficiency.
When the ECM detects a high voltage input from the EOT sensor circuit, it triggers the P0198 fault code to indicate a potential issue with the sensor or its circuit.
Mechanic’s Tech Notes
Code P0198 indicates a problem with the engine oil temperature sensor circuit high input.
OBDII code P0198 indicates a problem with the Engine Oil Temperature (EOT) sensor circuit.
To diagnose, use a voltmeter to test the sensor’s resistance and voltage.
Check for any wiring issues, such as shorts or opens.
Inspect the sensor connector for corrosion or damage.
Scan tools can help monitor EOT sensor data and confirm proper operation.
If the sensor is faulty, replace it following manufacturer guidelines.
Ensure the new sensor is compatible and properly installed.
Clear the code and test drive to verify the repair.
FAQ
OBD code P0198 indicates an issue with the Engine Oil Temperature sensor. Check sensor, wiring, and connectors for faults. Repair as needed.
Common symptoms for OBD code P0198 include Engine Light ON, caused by a faulty Engine Oil Temperature sensor or related wiring issues. Inspect and repair as needed.
Diagnose and fix OBD code P0198 by checking the Engine Oil Temperature sensor and its wiring for faults. Inspect connectors for damage or corrosion.
Wrap Up
If your check engine light is on and your temperature gauge is reading high, you may be dealing with OBDII code P0198. This code typically indicates a problem with the engine oil temperature sensor circuit, which could be caused by a faulty sensor, wiring issues, or low engine oil level.
To address OBDII code P0198, start by inspecting the engine oil temperature sensor and its wiring harness for any visible damage or corrosion.
Test the sensor’s resistance and check the connector for a secure fit.
If necessary, replace the sensor and repair any damaged wiring to resolve the issue.
