AutoCodes – Generic – C14A2

C14A2 Code - Gain Rocker Switch Negative Circuit

Quick Answer

The Trailer Brake Control ECU monitors the Gain Rocker Switch. Common causes include Faulty Gain Rocker Switch, Gain Rocker Switch harness is open or shorted, Gain Rocker 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: C14A2 indicates Gain Rocker Switch Negative Circuit.
Common causes: Common causes include Faulty Gain Rocker Switch, Gain Rocker Switch harness is open or shorted, Gain Rocker 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 735

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 Oct 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C14A2 Description

The Trailer Brake Control ECU monitors the Gain Rocker Switch. The Trailer Brake Control ECU sets the OBDII code when the Gain Rocker Switch is not to factory specifications.

OBDII Code C14A2 - Gain Rocker Switch Negative Circuit - AutoCodes.com — C14A2 Code - Gain Rocker Switch Negative Circuit

What does this mean?

What are the Possible Causes of the DTC C14A2?

Faulty Gain Rocker Switch
Gain Rocker Switch harness is open or shorted
Gain Rocker Switch circuit poor electrical connection
Faulty Trailer Brake Control ECU (Brake Control with Bracket Relay)

How to Fix the DTC C14A2?

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 C14A2 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 C14A2 code?

Need more information on how to fix the C14A2 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C14A2 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C14A2 Lexus — Gain Rocker Switch Negative Circuit
C14A2 Toyota — Gain Rocker Switch Negative 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 C14A2 Code

1. What are the common symptoms of OBDII code C14A2 Gain Rocker Switch Negative Circuit?

The common symptoms include rough idling, poor engine performance, and illuminated Check Engine Light.

2. What causes the OBDII code C14A2 Gain Rocker Switch Negative Circuit to trigger?

The code is typically triggered by a malfunction in the rocker switch negative circuit, such as a short circuit or open circuit.

3. How can I diagnose the OBDII code C14A2 Gain Rocker Switch Negative Circuit?

Diagnosis involves using a scan tool to retrieve the code, inspecting the rocker switch wiring and connections, and testing the circuit for continuity and voltage.

4. Can a faulty rocker switch itself trigger the OBDII code C14A2?

Yes, a faulty rocker switch can cause the negative circuit issue that triggers the code. It is recommended to test the switch functionality during diagnosis.

5. What are the potential repair options for OBDII code C14A2 Gain Rocker Switch Negative Circuit?

Repair options may include repairing or replacing damaged wiring, repairing or replacing the rocker switch, and ensuring proper connections are made.

6. Is it safe to continue driving with the OBDII code C14A2 unresolved?

It is generally not recommended to continue driving with the code unresolved, as it can lead to further engine issues and potential vehicle breakdown.

7. Can I reset the OBDII code C14A2 Gain Rocker Switch Negative Circuit with a simple battery disconnect?

While disconnecting the battery may clear the code temporarily, it is important to diagnose and address the root cause to prevent the code from reoccurring.

8. Are there any preventive maintenance tips to prevent OBDII code C14A2 Gain Rocker Switch Negative Circuit?

Regularly inspecting the rocker switch and its wiring for any signs of wear or damage can help prevent the code from triggering.

9. How much does it typically cost to repair OBDII code C14A2 Gain Rocker Switch Negative Circuit at a repair shop?

The cost of repair can vary depending on the extent of the damage and the labor rates of the repair shop. It is advisable to obtain quotes from different shops for comparison.

10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code C14A2 Gain Rocker Switch Negative Circuit themselves?

Yes, individuals with basic automotive knowledge and the right tools can attempt to diagnose and repair the issue themselves. However, caution and attention to detail are crucial to ensure a proper repair.