AutoCodes – Ford – P0197 2003 Ford F150

P0197 2003 Ford F150 Code - Engine Oil Temperature Sensor Circuit Low Input

Quick Answer

The engine oil temperature sensor is used to detect the engine oil temperature. Common causes include Faulty Engine Oil Temperature sensor, Engine Oil Temperature sensor harness is open or shorted, Engine Oil Temperature sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0197 2003 Ford F150 indicates Engine Oil Temperature Sensor Circuit Low Input .
Common causes: Common causes include Faulty Engine Oil Temperature sensor, Engine Oil Temperature sensor harness is open or shorted, Engine Oil Temperature sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 2,704

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0197 2003 Ford F150 Description

The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine oil temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

OBDII Code P0197 2003 Ford F150 - Engine Oil Temperature Sensor Circuit Low Input - AutoCodes.com — P0197 2003 Ford F150 Code - Engine Oil Temperature Sensor Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0197 2003 Ford F150?

Faulty Engine Oil Temperature sensor
Engine Oil Temperature sensor harness is open or shorted
Engine Oil Temperature sensor circuit poor electrical connection
Damaged PCM

How to Fix the DTC P0197 2003 Ford F150?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Indicates Engine Oil Temperature (EOT) signal voltage is low (high temperature)

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0197 2003 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0197 2003 Ford F150 code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0197 2003 Ford F150 Code

1. What are the common symptoms of OBDII code P0197 on a 2003 Ford F150?

The common symptoms of code P0197 on a 2003 Ford F150 include issues with the engine oil temperature gauge, poor fuel economy, and potential stalling or rough idling.

2. What can cause the Engine Oil Temperature Sensor Circuit Low Input code on a 2003 Ford F150?

The main causes of the P0197 code on a 2003 Ford F150 are a faulty engine oil temperature sensor, damaged wiring or connectors in the sensor circuit, or low engine oil levels.

3. How serious is the P0197 code on a 2003 Ford F150?

While the P0197 code may not cause immediate harm to the engine, it can lead to poor engine performance and potential long-term damage if left unresolved. It is recommended to address the issue promptly.

4. How can I diagnose the Engine Oil Temperature Sensor Circuit Low Input code on my 2003 Ford F150?

Diagnosing the P0197 code involves using an OBDII scanner to retrieve the code, inspecting the engine oil temperature sensor and its wiring for damage, and testing the sensor's resistance and voltage.

5. Can I still drive my 2003 Ford F150 with the P0197 code?

It is not advisable to drive your 2003 Ford F150 with the P0197 code, as it can lead to poor engine performance and potential engine damage. It is recommended to address the issue before driving the vehicle further.

6. How can I repair the Engine Oil Temperature Sensor Circuit Low Input code on my 2003 Ford F150?

Repairing the P0197 code involves replacing the faulty engine oil temperature sensor, repairing any damaged wiring or connectors, and clearing the code with an OBDII scanner.

7. Is it possible to reset the P0197 code on a 2003 Ford F150 without fixing the underlying issue?

While you can clear the P0197 code using an OBDII scanner, it is crucial to address the underlying issue causing the code to prevent further engine problems.

8. Can a DIY enthusiast fix the P0197 code on a 2003 Ford F150?

If you have experience with automotive repairs and the necessary tools, you may be able to fix the P0197 code on your 2003 Ford F150. However, if you are unsure, it is best to consult a professional mechanic.

9. How much does it cost to repair the P0197 code on a 2003 Ford F150?

The cost of repairing the P0197 code on a 2003 Ford F150 can vary depending on the cause of the issue, the labor rates in your area, and whether you choose to fix it yourself or take it to a mechanic.

10. How often does the Engine Oil Temperature Sensor Circuit Low Input code occur in 2003 Ford F150 vehicles?

The occurrence of the P0197 code can vary among 2003 Ford F150 vehicles, but it is a relatively common issue related to the engine oil temperature sensor circuit. Regular maintenance can help prevent this code from appearing.