AutoCodes – Chrysler – C0078 Chrysler

C0078 Chrysler Code - Tire Diameter

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Tire Diameter. Common causes include Tire pressure too low or too high, Wrong tire diameter. 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: C0078 Chrysler indicates Tire Diameter.
Common causes: Common causes include Tire pressure too low or too high, Wrong tire diameter.
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 1,638

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 May 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0078 Chrysler Description

The Anti-Lock Brake System (ABS) Module monitors the Tire Diameter. The ABS Module sets the OBDII code when the Tire Diameter is not to factory specifications.

OBDII Code C0078 Chrysler - Tire Diameter - AutoCodes.com — C0078 Chrysler Code - Tire Diameter

What does this mean?

What are the Possible Causes of the DTC C0078 Chrysler?

Tire pressure too low or too high
Wrong tire diameter

How to Fix the DTC C0078 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0078 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.

Need more information about the C0078 Chrysler code?

Need more information on how to fix the C0078 Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0078 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 C0078 Chrysler Code

1. What are the common symptoms of OBDII code C0078 related to tire diameter in a Chrysler vehicle?

- Common symptoms include traction control system malfunctions, ABS warning light illumination, and potential issues with speedometer accuracy.

2. What could cause the OBDII code C0078 related to tire diameter in a Chrysler vehicle to trigger?

- The code can be triggered by changes in tire diameter due to installation of tires with incorrect sizes, worn tires, or improper tire inflation.

3. How can I resolve the OBDII code C0078 related to tire diameter in my Chrysler vehicle?

- To resolve the code, ensure that all tires are properly inflated to the manufacturer's recommended pressure and have the correct diameter size as specified for your vehicle.

4. Can using different sized tires on my Chrysler vehicle lead to the OBDII code C0078 related to tire diameter?

- Yes, using tires with different diameters or sizes than what is recommended for your vehicle can trigger the C0078 code due to discrepancies in wheel speed readings.

5. Will resetting the OBDII code C0078 related to tire diameter in my Chrysler vehicle solve the issue?

- Resetting the code may temporarily clear the warning light, but it is essential to address the root cause by checking and correcting the tire diameter and inflation to prevent the code from recurring.

6. Is it safe to drive my Chrysler vehicle with the OBDII code C0078 related to tire diameter illuminated?

- While driving with the code illuminated may not pose an immediate safety risk, it is crucial to address the underlying tire diameter issue to ensure proper functioning of the traction control and ABS systems.

7. Can a faulty wheel speed sensor lead to the OBDII code C0078 related to tire diameter in a Chrysler vehicle?

- Yes, a faulty wheel speed sensor can contribute to triggering the C0078 code as it may provide inaccurate data on tire diameter and speed, causing the system to detect a discrepancy.

8. How can I prevent the OBDII code C0078 related to tire diameter from recurring in my Chrysler vehicle?

- Regularly check and maintain proper tire pressure, ensure all tires are the correct size, and avoid mixing tires with different diameters to prevent the code from recurring.

9. Will the OBDII code C0078 related to tire diameter affect the overall performance of my Chrysler vehicle?

- The code may impact the vehicle's traction control and ABS systems, potentially affecting handling and safety, making it important to address the issue promptly.

10. Can a mechanic easily diagnose and repair the OBDII code C0078 related to tire diameter in my Chrysler vehicle?

- A qualified mechanic can diagnose the issue by checking the tire sizes, inflation, and wheel speed sensors, making necessary adjustments to resolve the C0078 code effectively.