AutoCodes – Generic – C1313

C1313 Code - Open In Main Relay 2 Circuit

Quick Answer

The Anti-Lock Brake System (ABS) main relay 1 (ABS No.1 relay) supplies power to the changeover solenoid and the linear solenoid. Common causes include Faulty Anti-Lock Brake System (ABS) Main Relay 2, ABS Main Relay 2 harness is open or shorted, ABS Main Relay 2 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: C1313 indicates Open In Main Relay 2 Circuit.
Common causes: Common causes include Faulty Anti-Lock Brake System (ABS) Main Relay 2, ABS Main Relay 2 harness is open or shorted, ABS Main Relay 2 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.

Save to My Repairs My Repairs

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

Code Popularity 8,720

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 Sep 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 C1313 Description

The Anti-Lock Brake System (ABS) main relay 1 (ABS No.1 relay) supplies power to the changeover solenoid and the linear solenoid. ABS main relay 2 (ABS No.2 relay) goes on for approximately 5 seconds after the ignition switch is turned off and the braking effort signal input is terminated. ABS main relay 2 (ABS No.2 relay) supplies electricity and maintains operating condition for the brake system when the ignition switch is off.

OBDII Code C1313 - Open In Main Relay 2 Circuit - AutoCodes.com — C1313 Code - Open In Main Relay 2 Circuit

What does this mean?

What are the Possible Causes of the DTC C1313?

Faulty Anti-Lock Brake System (ABS) Main Relay 2
ABS Main Relay 2 harness is open or shorted
ABS Main Relay 2 circuit poor electrical connection

How to Fix the DTC C1313?

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 C1313 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 C1313 code?

Need more information on how to fix the C1313 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1313 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1313 Hyundai — Front Right TPMS Sensor Radio Frequency Failure
C1313 KIA — Front Right TPMS Sensor Radio Frequency Failure
C1313 Lexus — Open In Main Relay 2 Circuit
C1313 Scion — Open In Main Relay 2 Circuit
C1313 Toyota — Open In Main Relay 2 Circuit

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 C1313 Code

1. What does the OBDII code C1313 mean?

C1313 indicates an "Open In Main Relay 2 Circuit," which means there is an electrical issue in the circuit controlling Main Relay 2, often related to the vehicle's traction or stability control system.

2. What are the common symptoms of code C1313?

Common symptoms include the ABS or traction control system warning light illuminating, reduced or disabled stability control functionality, or intermittent performance of related systems.

3. What causes the C1313 code to appear?

The C1313 code can be triggered by a faulty Main Relay 2, damaged wiring or connectors in the circuit, a blown fuse, or a malfunctioning control module.

4. Can I continue driving with the C1313 code?

You can usually drive with this code, but traction and stability control systems may be compromised, which could affect handling and safety in certain conditions.

5. How is the C1313 code diagnosed?

A mechanic will typically use a scan tool to confirm the code, inspect the Main Relay 2 circuit for open or damaged wiring, check the relay for proper operation, and test associated fuses and connectors.

6. How do you fix the C1313 code?

Repairs may include replacing a faulty Main Relay 2, repairing or replacing damaged wiring or connectors, or addressing issues with the control module if necessary.

7. Is the C1313 code related to the ABS system?

Yes, the C1313 code is often related to the ABS or traction control system since Main Relay 2 is commonly involved in powering these systems.

8. What tools are needed to fix the C1313 code?

Diagnosing and fixing the C1313 code may require a scan tool, a multimeter for checking voltage and continuity, and basic tools for accessing and replacing components.

9. Can a dead battery cause the C1313 code?

A severely weak or dead battery can potentially cause communication or power issues in the system, which might trigger the C1313 code.

10. How much does it cost to repair a C1313 code?

Repair costs can vary depending on the cause but generally range from $50 to $300, with higher costs for parts like control modules or professional labor.