AutoCodes – Generic – C1186

C1186 Code - ABS Power Relay Output Open Circuit

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the ABS Power Relay. Common causes include Faulty ABS Power Relay, ABS Power Relay harness is open or shorted, ABS Power 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
C1186 indicates ABS Power Relay Output Open Circuit.
Common causes
Common causes include Faulty ABS Power Relay, ABS Power Relay harness is open or shorted, ABS Power 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 21,775
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 20, 2020
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Code C1186 Description

The Anti-Lock Brake System (ABS) Module monitors the ABS Power Relay. The ABS Module sets the OBDII code when the ABS Power Relay is not to factory specifications.
OBDII Code C1186 - ABS Power Relay Output Open Circuit - AutoCodes.com
C1186 Code - ABS Power Relay Output Open Circuit

What are the Possible Causes of the DTC C1186?

  • Faulty ABS Power Relay
  • ABS Power Relay harness is open or shorted
  • ABS Power Relay circuit poor electrical connection

How to Fix the DTC C1186?

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 C1186 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 C1186 code?

Need more information on how to fix the C1186 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1186 code diagnosed by a professional: Find a repair shop in your area

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 C1186 Code

1. What are common symptoms of OBDII code C1186 ABS Power Relay Output Open Circuit?

A: Common symptoms include the ABS warning light being illuminated on the dashboard, loss of ABS functionality, and potential issues with the braking system.

2. What can cause the OBDII code C1186 ABS Power Relay Output Open Circuit?

A: The code C1186 can be caused by a malfunctioning ABS power relay, damaged wiring or connectors related to the ABS system, or a faulty ABS control module.

3. How can I diagnose the OBDII code C1186 ABS Power Relay Output Open Circuit?

A: Diagnosing the code typically involves using a diagnostic scanner to retrieve the code, inspecting the ABS system components for visible damage, and performing electrical tests on the ABS power relay and associated wiring.

4. Can I continue driving with the OBDII code C1186 ABS Power Relay Output Open Circuit?

A: It is not recommended to drive with the ABS warning light on, as it indicates a potential issue with the anti-lock braking system that may compromise safety. It is advised to address the issue promptly.

5. How can I repair the OBDII code C1186 ABS Power Relay Output Open Circuit?

A: Repairing the code may involve replacing the faulty ABS power relay, repairing damaged wiring or connectors, or addressing any issues with the ABS control module. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

6. Are there any DIY tips for fixing the OBDII code C1186 ABS Power Relay Output Open Circuit?

A: DIY tips may include checking and securing ABS system connections, inspecting for visible damage, and testing the ABS power relay using a multimeter. However, complex repairs may require professional assistance.

7. Can a low battery voltage cause the OBDII code C1186 ABS Power Relay Output Open Circuit?

A: Yes, low battery voltage or a weak electrical system can potentially trigger the code C1186 due to insufficient power supply to the ABS components. Ensuring a healthy battery and electrical system is important for proper ABS operation.

8. How much does it typically cost to repair the OBDII code C1186 ABS Power Relay Output Open Circuit?

A: Repair costs can vary depending on the specific cause of the code and the labor rates in your area. Replacing an ABS power relay or repairing wiring may cost a few hundred dollars, while addressing issues with the ABS control module can be more expensive.

9. Can extreme weather conditions contribute to the OBDII code C1186 ABS Power Relay Output Open Circuit?

A: Extreme weather conditions, such as excessive heat or moisture, can potentially contribute to electrical issues in the ABS system, leading to the code C1186. It is important to keep the ABS components well-protected and maintained in all conditions.

10. Is it necessary to reset the OBDII code C1186 ABS Power Relay Output Open Circuit after repairs?

A: Yes, it is recommended to clear the code after addressing the underlying issue to reset the ABS system and ensure proper functionality. This can be done using a diagnostic scanner or by disconnecting the vehicle's battery for a few minutes.

Discuss the causes and fixes for C1186 OBDII Code

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