AutoCodes – Generic – C15C3

C15C3 Code - Brake System Control Module Malfunction

Quick Answer

The Steering Control ECU detects a vehicle speed error by receiving an error signal from the skid control ECU via CAN communication. Common causes include Faulty Vehicle Stability Control System, Faulty Steering Control ECU. 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: C15C3 indicates Brake System Control Module Malfunction.
Common causes: Common causes include Faulty Vehicle Stability Control System, Faulty Steering Control ECU.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 2,278

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 Nov 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C15C3 Description

The Steering Control ECU detects a vehicle speed error by receiving an error signal from the skid control ECU via CAN communication. If the Steering Control ECU detects this error signal, it will turn the master warning light on, store this DTC, and stop Variable Gear Ratio Steering (VGRS) operation.

OBDII Code C15C3 - Brake System Control Module Malfunction - AutoCodes.com — C15C3 Code - Brake System Control Module Malfunction

What does this mean?

What are the Possible Causes of the DTC C15C3?

Faulty Vehicle Stability Control System
Faulty Steering Control ECU

How to Fix the DTC C15C3?

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 C15C3 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 C15C3 code?

Need more information on how to fix the C15C3 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C15C3 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C15C3 Lexus — Brake System Control Module Malfunction
C15C3 Toyota — Brake System Control Module Malfunction

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 C15C3 Code

1. What are the common symptoms of OBDII code C15C3 (Brake System Control Module Malfunction)?

- Common symptoms include the ABS warning light staying on, loss of anti-lock brake system functionality, and potential issues with brake performance.

2. What are the possible causes of OBDII code C15C3?

- The code C15C3 can be triggered by issues such as a faulty brake system control module, damaged wiring or connectors, or software malfunctions within the module.

3. How can I diagnose the OBDII code C15C3?

- Diagnosing code C15C3 usually involves using a professional OBDII scanner to retrieve the specific trouble code, followed by a thorough inspection of the brake system control module and related components.

4. Can I continue driving with OBDII code C15C3 present?

- It is not recommended to continue driving with OBDII code C15C3 present, as it can affect the proper functioning of the anti-lock brake system, compromising safety.

5. How can I repair OBDII code C15C3?

- Repairing code C15C3 typically involves replacing the faulty brake system control module, repairing damaged wiring or connectors, and clearing the trouble code with a diagnostic tool.

6. Are there any DIY tips for troubleshooting OBDII code C15C3?

- DIY tips for troubleshooting code C15C3 include checking the brake system control module connections, ensuring the module is securely mounted, and inspecting for any visible damage.

7. Can a low battery voltage cause OBDII code C15C3 to trigger?

- Yes, low battery voltage can potentially cause code C15C3 to trigger as it can affect the proper functioning of the brake system control module.

8. Will resetting the trouble codes make OBDII code C15C3 disappear permanently?

- Resetting the trouble codes may temporarily clear code C15C3, but if the underlying issue is not addressed, the code is likely to reappear upon further diagnosis or driving.

9. Is it safe to drive my vehicle to a repair shop with OBDII code C15C3 active?

- It is best to avoid driving the vehicle with code C15C3 active to prevent any potential safety hazards related to the malfunctioning brake system control module.

10. How much does it typically cost to fix OBDII code C15C3?

- The cost of fixing code C15C3 can vary depending on the extent of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services.