AutoCodes – Subaru – C0116 Subaru

C0116 Subaru Code - Stop Light Switch Circuit Malfunction

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Stop Light Switch. Common causes include Faulty Stop Light Switch (Brake Light Switch), Stop Light Switch harness is open or shorted, Stop Light Switch 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: C0116 Subaru indicates Stop Light Switch Circuit Malfunction.
Common causes: Common causes include Faulty Stop Light Switch (Brake Light Switch), Stop Light Switch harness is open or shorted, Stop Light Switch 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 4,058

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 C0116 Subaru Description

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

OBDII Code C0116 Subaru - Stop Light Switch Circuit Malfunction - AutoCodes.com — C0116 Subaru Code - Stop Light Switch Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC C0116 Subaru?

Faulty Stop Light Switch (Brake Light Switch)
Stop Light Switch harness is open or shorted
Stop Light Switch circuit poor electrical connection

How to Fix the DTC C0116 Subaru?

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 C0116 Subaru 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 C0116 Subaru Code

1. What are the common symptoms of OBDII code C0116 in a Subaru related to the Stop Light Switch Circuit Malfunction?

- The common symptoms include the brake lights staying on constantly, the inability to turn off the cruise control, and possibly the traction control light being illuminated on the dashboard.

2. What are the main causes of the C0116 OBDII code in a Subaru?

- The main causes of this code include a faulty stop light switch, poor electrical connections in the stop light circuit, or a damaged wiring harness.

3. How can I diagnose the Stop Light Switch Circuit Malfunction in my Subaru if I suspect OBDII code C0116?

- You can start by checking the functionality of the brake lights, inspecting the stop light switch for proper operation, and using an OBDII scanner to retrieve the trouble codes.

4. Can a faulty stop light switch cause other issues in my Subaru besides triggering the C0116 code?

- Yes, a faulty stop light switch can also affect the operation of the cruise control system and the traction control system in your Subaru.

5. Is it safe to continue driving my Subaru with the C0116 OBDII code related to the Stop Light Switch Circuit Malfunction?

- It is not recommended to drive your Subaru with this code active, as it can potentially affect the proper operation of the brake lights and other safety systems.

6. How can I repair the Stop Light Switch Circuit Malfunction in my Subaru to clear the C0116 code?

- You can start by replacing the faulty stop light switch, checking and repairing any damaged wiring or electrical connections, and then clearing the trouble codes with an OBDII scanner.

7. Can I reset the C0116 OBDII code in my Subaru by simply disconnecting the battery?

- While disconnecting the battery may reset some codes, it is always recommended to diagnose and repair the underlying issue causing the code before clearing it to ensure the problem doesn't persist.

8. Are there any specific tools or equipment needed to diagnose and repair the C0116 code in a Subaru?

- You may need basic hand tools, a multimeter for electrical testing, an OBDII scanner to read and clear trouble codes, and a replacement stop light switch if needed.

9. How long does it typically take to repair the Stop Light Switch Circuit Malfunction in a Subaru triggering the C0116 code?

- The repair time can vary depending on the exact cause of the issue, but in general, it can take anywhere from 30 minutes to a few hours to diagnose and repair the problem.

10. If I have replaced the stop light switch in my Subaru and cleared the C0116 code, but it keeps coming back, what should I do next?

- If the code keeps reappearing after replacing the stop light switch, you may need to inspect the wiring harness for any damage or corrosion, or seek assistance from a professional mechanic for further diagnosis.