AutoCodes – Generic – C0111

C0111 Code - Motor Relay On Failure

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Motor Relay. Common causes include Faulty Anti-Lock Brake System (ABS) Motor Relay, ABS Motor Relay harness is open or shorted, ABS Motor Relay 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: C0111 indicates Motor Relay On Failure.
Common causes: Common causes include Faulty Anti-Lock Brake System (ABS) Motor Relay, ABS Motor Relay harness is open or shorted, ABS Motor Relay 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 6,424

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 May 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0111 Description

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

OBDII Code C0111 - Motor Relay On Failure - AutoCodes.com — C0111 Code - Motor Relay On Failure

What does this mean?

What are the Possible Causes of the DTC C0111?

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

How to Fix the DTC C0111?

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 C0111 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 C0111 code?

Need more information on how to fix the C0111 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0111 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0111 Subaru — Motor Relay On Failure

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 C0111 Code

1. What are the common symptoms of OBDII code C0111 (Motor Relay On Failure)?

- Common symptoms include difficulty starting the vehicle, engine stalling, and issues with the vehicle's electrical systems.

2. What are the possible causes of OBDII code C0111?

- Possible causes can include a faulty motor relay, damaged wiring or connectors, a malfunctioning motor control module, or a problem with the vehicle's battery.

3. How can I diagnose the cause of OBDII code C0111?

- Diagnosing the code typically involves checking the motor relay, inspecting the wiring and connectors for damage, testing the motor control module, and verifying the battery's condition.

4. Can I still drive my vehicle with OBDII code C0111 active?

- It is not recommended to drive the vehicle with this code active, as it can lead to potential safety hazards and further damage to the vehicle's components.

5. How can I repair OBDII code C0111 (Motor Relay On Failure)?

- Repairing the code may involve replacing the faulty motor relay, repairing damaged wiring or connectors, replacing the motor control module, or addressing any battery issues.

6. Is it possible to reset OBDII code C0111 without repairing the issue?

- Resetting the code without addressing the underlying issue will not solve the problem, as the code is likely to reappear once the vehicle is in operation.

7. Are there any preventive maintenance tips to avoid OBDII code C0111?

- Regularly inspecting and maintaining the vehicle's electrical components, including the motor relay and wiring, can help prevent issues that may trigger this code.

8. Can a DIY enthusiast repair OBDII code C0111 at home?

- Depending on the level of expertise, a DIY enthusiast may be able to address the issue by following repair guides and using the necessary tools and equipment.

9. How long does it typically take to repair OBDII code C0111?

- The repair time can vary depending on the specific cause of the code and the complexity of the repair, but it may take anywhere from a few hours to a full day.

10. Will OBDII code C0111 cause permanent damage to the vehicle if left unresolved?

- Ignoring OBDII code C0111 can potentially lead to further damage to the vehicle's electrical system and components, so it is best to address the issue promptly.