AutoCodes – Generic – C105B

C105B Code - Abnormality In Rear Right Wheel Outlet Valve System

Quick Answer

The Anti-Lock Brake System (ABS) Electronic Control Unit (ECU) the power supply circuit for the solenoid valve. Common causes include Faulty Anti-Lock Brake System (ABS) Electronic Control Unit (ECU), ABS-ECU harness is open or shorted, ABS-ECU 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
C105B indicates Abnormality In Rear Right Wheel Outlet Valve System.
Common causes
Common causes include Faulty Anti-Lock Brake System (ABS) Electronic Control Unit (ECU), ABS-ECU harness is open or shorted, ABS-ECU 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,618
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 09, 2020
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Code C105B Description

The Anti-Lock Brake System (ABS) Electronic Control Unit (ECU) the power supply circuit for the solenoid valve. The solenoid valve is energized by the valve relay, which is incorporated in ABS-ECU. The valve relay, which is incorporated in ABS-ECU, is always energizing the solenoid valve unless the initial check is in progress when the ignition switch is turned on, or the recurrent system check is in progress. ABS-ECU activates the solenoid valve by turning on its driving transistor.
OBDII Code C105B - Abnormality In Rear Right Wheel Outlet Valve System - AutoCodes.com
C105B Code - Abnormality In Rear Right Wheel Outlet Valve System

What are the Possible Causes of the DTC C105B?

  • Faulty Anti-Lock Brake System (ABS) Electronic Control Unit (ECU)
  • ABS-ECU harness is open or shorted
  • ABS-ECU circuit poor electrical connection

How to Fix the DTC C105B?

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 C105B 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 C105B code?

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Need Help with the Code?

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Information for Specific Makes

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 C105B Code

1. What are common symptoms of OBDII code C105B related to the abnormality in the rear right wheel outlet valve system?

- Common symptoms include issues with brake performance, uneven braking, ABS warning light on the dashboard, and unusual noises coming from the rear right wheel.

2. What could be causing the OBDII code C105B to trigger an abnormality in the rear right wheel outlet valve system?

- Possible causes include a faulty outlet valve, damaged wiring harness, sensor malfunctions, or issues with the ABS control module.

3. How can I diagnose the source of the problem related to OBDII code C105B for the rear right wheel outlet valve system?

- Diagnosing the issue may require using a professional OBDII scanner to read the code, conducting a visual inspection of the outlet valve and related components, and testing the sensor and wiring for continuity.

4. Is it safe to continue driving with OBDII code C105B indicating an abnormality in the rear right wheel outlet valve system?

- It is not recommended to drive with this code present, as it can affect the vehicle's braking performance and safety. It's best to address the issue promptly.

5. Can I repair the abnormality in the rear right wheel outlet valve system related to OBDII code C105B myself?

- While some basic checks like inspecting for loose connections can be done by DIY enthusiasts, resolving the underlying issue may require professional diagnostic equipment and expertise.

6. How much does it typically cost to repair OBDII code C105B for the rear right wheel outlet valve system?

- Repair costs can vary depending on the exact cause of the issue, but they may include replacement of the outlet valve, sensor, wiring harness, or ABS control module, ranging from a few hundred to over a thousand dollars.

7. Are there any maintenance tips to prevent OBDII code C105B from recurring in the rear right wheel outlet valve system?

- Regularly inspecting and maintaining the ABS system components, keeping the wiring harness secure, and following the manufacturer's recommended service schedule can help prevent this issue.

8. How urgent is it to address OBDII code C105B related to the rear right wheel outlet valve system?

- It is crucial to address this issue promptly to ensure the proper function of the braking system and ABS, maintaining the vehicle's safety and performance.

9. Will resetting the OBDII system clear the C105B code related to the rear right wheel outlet valve system?

- Resetting the system may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear after driving or running a diagnostic scan.

10. Can OBDII code C105B be triggered by other issues not related to the rear right wheel outlet valve system?

- While the code specifically points to an abnormality in the rear right wheel outlet valve system, it's essential to ensure there are no other related issues causing the code, such as ABS system malfunctions or wiring problems elsewhere.

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