AutoCodes – Chrysler – P0298 Chrysler

P0298 Chrysler Code - Engine Oil Temperature Too High

Quick Answer

The Engine Oil Temperature (EOT) Sensor is a variable resistor that measures the temperature of the engine oil. Common causes include Engine Oil, Faulty Engine Oil Temperature Sensor, Engine Oil Temperature Sensor harness is open or shorted. 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: P0298 Chrysler indicates Engine Oil Temperature Too High .
Common causes: Common causes include Engine Oil, Faulty Engine Oil Temperature Sensor, Engine Oil Temperature Sensor harness is open or shorted.
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 6,279

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 29, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0298 Chrysler Description

The Engine Oil Temperature (EOT) Sensor is a variable resistor that measures the temperature of the engine oil. The Powertrain Control Module (PCM) supplies a 5-Volt reference and a ground to the sensors low reference signal circuit. When the oil temperature is low, the sensor resistance is high. When the oil temperature is high, the sensor resistance is low. The Diagnostic Trouble Code (DTC) P0298 is set when the Engine oil temperature rises faster than a calibrated modeled temperature. When the actual oil temperature exceeds the high boundary of the calibrated modeled temperature for three minutes the fault is set. Two trip fault. Three good trips to turn off the MIL.

OBDII Code P0298 Chrysler - Engine Oil Temperature Too High - AutoCodes.com — P0298 Chrysler Code - Engine Oil Temperature Too High

What does this mean?

What are the Possible Causes of the DTC P0298 Chrysler?

Engine Oil
Faulty Engine Oil Temperature Sensor
Engine Oil Temperature Sensor harness is open or shorted
Engine Oil Temperature Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0298 Chrysler?

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

On engines that are equipped with an oil temperature sensor, the Powertrain Control Module (PCM) reads oil temperature to determine if it is excessive. When an oil temperature sensor is not present, the PCM uses an oil algorithm to infer the actual temperature. Engine shutdown strategy function is the same on vehicles with and without oil temperature sensors.

There is a factory service bulletin for the following Chrysler Models:
2011 Chrysler 200
2011 Chrysler 300
2011 Chrysler Town and Country
Chrysler Factory Service Bulletin OBDII Code P0298

The bulletin recommends reprogramming the Powertrain Control Module (PCM).

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0298 Chrysler 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.

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Need Help with the Code?

Get the P0298 Chrysler code diagnosed by a professional: Find a repair shop in your area

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 P0298 Chrysler Code

1. What does the OBDII code P0298 mean on a Chrysler?

P0298 indicates that the engine oil temperature is too high, which can lead to potential engine damage if not addressed.

2. What are the common symptoms of code P0298 on a Chrysler?

Symptoms may include the oil temperature warning light turning on, reduced engine performance, engine overheating, or unusual engine noises.

3. What causes the P0298 code to appear on a Chrysler?

Common causes include low oil levels, poor-quality oil, a malfunctioning oil temperature sensor, a faulty oil cooler, or excessive engine load.

4. Can I drive my Chrysler with the P0298 code active?

It is not recommended to drive with this code active, as high oil temperatures can cause severe engine damage if not resolved.

5. How do I fix the P0298 code on my Chrysler?

Repairs may involve checking and topping off oil levels, replacing the oil temperature sensor, inspecting the oil cooler, or addressing any external causes like towing heavy loads.

6. How can I prevent the P0298 code from occurring on my Chrysler?

Regular oil changes with the correct oil grade, proper maintenance of the cooling system, and avoiding excessive engine strain can help prevent this issue.

7. What tools are needed to diagnose the P0298 code on a Chrysler?

A diagnostic scanner, a multimeter for testing the sensor, and basic tools to inspect the oil cooler and related components are typically required.

8. How much does it cost to repair the P0298 code on a Chrysler?

Costs vary depending on the cause but can range from $50 for an oil change to $500 or more for replacing an oil cooler or sensor.

9. Can low oil levels trigger the P0298 code on a Chrysler?

Yes, insufficient oil levels can lead to increased oil temperature and trigger this code.

10. Does the P0298 code mean my Chrysler’s engine is damaged?

Not necessarily, but prolonged driving with high oil temperatures can cause significant engine damage. Address the issue immediately to avoid further complications.