AutoCodes – Generic – C0261

C0261 Code - Defective CAN Communication

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the CAN Communication. Common causes include Faulty Anti-Lock Brake System (ABS) Module, Anti-Lock Brake System (ABS) Module harness is open or shorted, Anti-Lock Brake System (ABS) Module 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: C0261 indicates Defective CAN Communication.
Common causes: Common causes include Faulty Anti-Lock Brake System (ABS) Module, Anti-Lock Brake System (ABS) Module harness is open or shorted, Anti-Lock Brake System (ABS) Module 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.

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Code Popularity 6,770

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 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0261 Description

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

OBDII Code C0261 - Defective CAN Communication - AutoCodes.com — C0261 Code - Defective CAN Communication

What does this mean?

What are the Possible Causes of the DTC C0261?

Faulty Anti-Lock Brake System (ABS) Module
Anti-Lock Brake System (ABS) Module harness is open or shorted
Anti-Lock Brake System (ABS) Module circuit poor electrical connection

How to Fix the DTC C0261?

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 C0261 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 C0261 code?

Need more information on how to fix the C0261 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0261 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0261 Subaru — Defective CAN Communication

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 C0261 Code

1. What are the common symptoms of OBDII code C0261 (Defective CAN Communication)?

- Common symptoms include intermittent or complete loss of communication with the ABS module, ABS warning light illuminated on the dashboard, and potential issues with ABS functionality.

2. What are the possible causes of OBDII code C0261?

- The code C0261 can be caused by a defective ABS module, damaged wiring or connectors in the CAN communication network, or a malfunctioning CAN bus interface.

3. How can I diagnose the OBDII code C0261?

- Diagnosing code C0261 involves using a diagnostic scanner to retrieve the trouble codes, checking the ABS module for any visible damage, and inspecting the wiring and connectors for signs of wear or corrosion.

4. Can a faulty wheel speed sensor trigger code C0261?

- Yes, a faulty wheel speed sensor can sometimes trigger code C0261 as it can disrupt the communication between the ABS module and other vehicle systems.

5. What are some repair tips for addressing OBDII code C0261?

- Repair tips include checking and repairing any damaged wiring or connectors, replacing the ABS module if necessary, and ensuring proper communication within the CAN network.

6. Is it safe to continue driving with OBDII code C0261 present?

- It is not recommended to continue driving with code C0261 present, as it can affect the functionality of the ABS system, potentially compromising vehicle safety.

7. Can resetting the trouble codes clear OBDII code C0261 permanently?

- Resetting the trouble codes may temporarily clear code C0261, but if the underlying issue is not addressed, the code is likely to reappear.

8. How much does it typically cost to repair OBDII code C0261?

- The cost of repairing OBDII code C0261 can vary depending on the specific cause of the issue, but it may involve costs for diagnostic services, parts replacement, and labor.

9. Are there any recalls related to OBDII code C0261?

- Recalls related to OBDII code C0261 can vary by vehicle make and model, so it is recommended to check with the manufacturer or a dealership for any relevant recall information.

10. Can a DIY enthusiast repair OBDII code C0261 at home?

- While some aspects of diagnosing and repairing code C0261 may be feasible for DIY enthusiasts, addressing complex issues like defective CAN communication may require specialized tools and expertise best left to professionals.