The OBD code P0197 for Nissan indicates a fault with the Engine Oil Temperature Sensor Circuit Low Input.
This affects the engine oil temperature monitoring system.
Symptoms include the Engine Light being illuminated.
The issue is commonly caused by a faulty sensor, open/shorted sensor harness, or poor electrical connection.
It is not a severe problem.
To fix it, inspect the sensor, wiring harness, and connectors for any damage or poor connections.
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 Nissan p0197 OBD Code
The vehicle may experience issues related to engine coolant temperature sensor circuit low input.
- Symptoms: Engine Light ON.
- Possible lack of power during acceleration.
- Engine may run rough or stall at idle.
- Reduced fuel efficiency.
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Causes of the Nissan p0197 OBD Code
P0197 in a Nissan indicates a problem with the engine coolant temperature sensor circuit low.
- P0197 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 Nissan Error Code p0197 Step By Step
Address the issue by inspecting the engine oil temperature sensor circuit for Nissan fault code P0197.
- To fix Nissan OBDII code P0197, first, review the possible causes related to the engine oil temperature sensor circuit.
- Visually inspect the wiring harness and connectors for any damage.
- Check the connector pins for signs of 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 the repair.
- If the code persists, further diagnosis may be required to identify any underlying issues.
Cost Of Fixing Nissan p0197 Fault Code
Diagnosing and repairing Nissan code P0197 involves checking the engine oil temperature sensor circuit.
The cost to diagnose and fix a Nissan OBD code P0197 typically ranges from $75 to $150, based on a 1. 0hour estimated repair time.
Factors like shop rates and complexity can affect the final cost.
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Details of the Nissan p0197 OBD Code
P0197 indicates a low voltage condition in the engine oil temperature sensor circuit on a Nissan vehicle.
Nissan OBD code P0197 means that the engine oil temperature sensor circuit low input has been detected.
This code is triggered by the Engine Control Module (ECM) when it receives a signal indicating that the engine oil temperature is lower than the specified range.
The sensor involved in this code is the engine oil temperature sensor, which is responsible for monitoring the temperature of the engine oil.
When the sensor sends a signal indicating a temperature below the expected range, the ECM sets code P0197.
Mechanic’s Tech Notes
P0197 indicates a low voltage condition in the engine oil temperature sensor circuit on Nissan vehicles.
To diagnose and fix OBDII code P0197 in a Nissan, start by checking the voltage signal from the engine oil temperature sensor using a voltmeter.
Ensure the sensor is providing accurate readings within the specified range.
Next, inspect the sensor wiring harness and connector for any damage, corrosion, or loose connections.
Test the sensor’s resistance to confirm proper operation.
If the sensor and wiring check out, the issue may lie with the sensor itself needing replacement.
Clear the code after any repairs and recheck to ensure the problem is resolved.
FAQ
Common symptoms of OBD code P0197 in a Nissan vehicle include the Engine Light ON and potential causes are a faulty Engine Oil Temperature sensor or related wiring issues.
The typical cause of OBD code P0197 in a Nissan is a faulty Engine Oil Temperature sensor, open/shorted harness, or poor electrical connection.
Diagnose and repair OBD code P0197 in a Nissan: Symptoms include Engine Light ON. Causes may be a faulty Engine Oil Temperature sensor or related wiring issues. Check sensor and wiring.

Wrap Up
If your Nissan triggers OBD code P0197, you may experience issues like rough idling, poor acceleration, or stalling.
This code typically indicates a problem with the engine oil temperature sensor circuit, possibly due to a faulty sensor, damaged wiring, or poor connections.
To address Nissan OBD code P0197, start by inspecting the engine oil temperature sensor and its wiring harness for any signs of damage or corrosion.
Test the sensor’s resistance and check the connector for a secure fit.
Replace the sensor if necessary and repair any wiring issues to resolve the fault.