AutoCodes – Lexus – C1314 Lexus

C1314 Lexus Code - Short 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: C1314 Lexus indicates Short 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.

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Code Popularity 1,646

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
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Code C1314 Lexus 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 C1314 Lexus - Short In Main Relay 2 Circuit - AutoCodes.com — C1314 Lexus Code - Short In Main Relay 2 Circuit

What does this mean?

What are the Possible Causes of the DTC C1314 Lexus?

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 C1314 Lexus?

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 C1314 Lexus 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 C1314 Lexus Code

1. What are the common symptoms of OBDII code C1314 in a Lexus related to a short in Main Relay 2 circuit?

The common symptoms include difficulty starting the vehicle, intermittent or complete loss of engine power, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code C1314 in a Lexus indicating a Short In Main Relay 2 Circuit?

Possible causes include a faulty main relay, damaged wiring or connectors in the relay circuit, or a short circuit within the main relay 2 circuit.

3. How can I diagnose the issue triggering OBDII code C1314 in my Lexus for a Short In Main Relay 2 Circuit?

Diagnosis typically involves inspecting the main relay 2, checking for damaged wiring or connectors, and using a multimeter to test the circuit for continuity and shorts.

4. Is it safe to continue driving my Lexus with OBDII code C1314 related to a Short In Main Relay 2 Circuit?

It is not recommended to continue driving the vehicle with this issue, as it can lead to further electrical problems or potential engine damage.

5. Can I repair OBDII code C1314 in my Lexus indicating a Short In Main Relay 2 Circuit myself?

If you have experience with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty main relay or repairing damaged wiring. Otherwise, it is best to seek professional assistance.

6. How much does it typically cost to repair OBDII code C1314 in a Lexus for a Short In Main Relay 2 Circuit?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $100-$300 for parts and labor.

7. Will resetting the OBDII code C1314 in my Lexus make the issue related to a Short In Main Relay 2 Circuit go away?

Simply resetting the code will not fix the underlying issue causing the code to appear. It is important to diagnose and repair the problem to prevent further issues.

8. Are there any preventive measures I can take to avoid triggering OBDII code C1314 in my Lexus for a Short In Main Relay 2 Circuit in the future?

Regularly inspecting the main relay and associated wiring for any signs of damage, and addressing any issues promptly, can help prevent this code from appearing in the future.

9. Can a faulty battery or alternator cause OBDII code C1314 in a Lexus indicating a Short In Main Relay 2 Circuit?

While a faulty battery or alternator can cause electrical issues in a vehicle, OBDII code C1314 is specifically related to a short in the Main Relay 2 circuit and is not typically caused by battery or alternator problems.

10. How long does it usually take to repair OBDII code C1314 in a Lexus related to a Short In Main Relay 2 Circuit?

The repair time can vary depending on the exact cause of the issue and the availability of parts, but it typically takes a few hours to half a day to diagnose and fix the problem.