AutoCodes – Hummer – C0245 Hummer

C0245 Hummer Code - Wheel Speed Sensor Frequency Malfunction

Quick Answer

The wheel speeds are detected by active wheel speed sensors. Common causes include Mis-sized or non-matching brand tire, Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module 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: C0245 Hummer indicates Wheel Speed Sensor Frequency Malfunction.
Common causes: Common causes include Mis-sized or non-matching brand tire, Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module 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 3,184

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 Jul 04, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0245 Hummer Description

The wheel speeds are detected by active wheel speed sensors. Each wheel speed sensor receives ignition voltage from the Electronic Brake Control Module (EBCM) and provides an alternating current square wave signal to the Electronic Brake Control Module. As the wheel spins, the Electronic Brake Control Module uses the frequency of the square wave signal to calculate the wheel speed. The Diagnostic Trouble Code (DTC) will be set when the wheel speed difference between one wheel and the others is greater than 20 percent.

OBDII Code C0245 Hummer - Wheel Speed Sensor Frequency Malfunction - AutoCodes.com — C0245 Hummer Code - Wheel Speed Sensor Frequency Malfunction

What does this mean?

What are the Possible Causes of the DTC C0245 Hummer?

Mis-sized or non-matching brand tire
Faulty Electronic Brake Control Module (EBCM)
Electronic Brake Control Module harness is open or shorted
Electronic Brake Control Module circuit poor electrical connection

How to Fix the DTC C0245 Hummer?

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 C0245 Hummer 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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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 C0245 Hummer Code

1. What are the common symptoms of OBDII code C0245 in a Hummer?

- Common symptoms include ABS warning light illuminated on the dashboard, traction control system malfunction, and potential loss of stability and traction control.

2. What does the OBDII code C0245 indicate in a Hummer?

- OBDII code C0245 indicates a Wheel Speed Sensor Frequency Malfunction in a Hummer, specifically related to the front wheel speed sensor circuit.

3. What are the possible causes of OBDII code C0245 in a Hummer?

- Possible causes include a faulty front wheel speed sensor, damaged or disconnected wiring harness, sensor signal interference, or issues with the ABS module.

4. How can I diagnose OBDII code C0245 in my Hummer?

- Diagnosis involves visually inspecting the front wheel speed sensor and its wiring, testing the sensor for proper functionality, and using a scan tool to check for ABS system codes.

5. Can I continue driving my Hummer with OBDII code C0245 present?

- It is not recommended to continue driving with this code present, as it can affect the vehicle's stability and traction control systems, compromising safety.

6. How can I repair OBDII code C0245 in my Hummer?

- Repair typically involves replacing the front wheel speed sensor, repairing or replacing damaged wiring, clearing the code with a scan tool, and performing a test drive to ensure proper functionality.

7. Is it possible to reset OBDII code C0245 in a Hummer without repairing the issue?

- While you can clear the code temporarily with a scan tool, it is crucial to address the underlying issue causing the Wheel Speed Sensor Frequency Malfunction for long-term reliability.

8. Can extreme weather conditions cause OBDII code C0245 to trigger in a Hummer?

- Yes, extreme weather conditions such as excessive moisture, road salt, or temperature fluctuations can contribute to sensor malfunctions and trigger OBDII code C0245.

9. How long does it typically take to repair OBDII code C0245 in a Hummer?

- The repair time can vary depending on the exact cause of the issue, but replacing a faulty sensor and addressing wiring problems usually takes a few hours to complete.

10. Are there any preventive measures to avoid OBDII code C0245 in a Hummer?

- Regularly inspecting the wheel speed sensors, ensuring proper wiring connections, and keeping the ABS system well-maintained can help prevent the occurrence of OBDII code C0245 in a Hummer.