AutoCodes – Toyota – C1380 2018 Toyota RAV4

C1380 2018 Toyota RAV4 Code - Stop Light Control Relay Malfunction

Quick Answer

Upon receiving the trailer sway control operating signal from the Skid Control ECU (Brake Actuator Assembly), the relay contact turns on and the stop lights come on. Common causes include Faulty Stop Light fuse, Stop Light harness is open or shorted, Stop Light 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: C1380 2018 Toyota RAV4 indicates Stop Light Control Relay Malfunction.
Common causes: Common causes include Faulty Stop Light fuse, Stop Light harness is open or shorted, Stop Light 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 404

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 Jan 23, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1380 2018 Toyota RAV4 Description

Upon receiving the trailer sway control operating signal from the Skid Control ECU (Brake Actuator Assembly), the relay contact turns on and the stop lights come on. The Skid Control ECU (Brake Actuator Assembly) sets the OBDII code when the Stop light is not to factory specifications.

OBDII Code C1380 2018 Toyota RAV4 - Stop Light Control Relay Malfunction - AutoCodes.com — C1380 2018 Toyota RAV4 Code - Stop Light Control Relay Malfunction

What does this mean?

What are the Possible Causes of the DTC C1380 2018 Toyota RAV4?

Faulty Stop Light fuse
Stop Light harness is open or shorted
Stop Light circuit poor electrical connection
Faulty Stop Light Control Relay (Bulb type Stop Light)
Faulty Stop Light Control ECU Assembly (LED type Stop Light)
Faulty Skid Control ECU (Brake Actuator Assembly)

How to Fix the DTC C1380 2018 Toyota RAV4?

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 C1380 2018 Toyota RAV4 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 C1380 2018 Toyota RAV4 code?

Need more information on how to fix the C1380 2018 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1380 2018 Toyota RAV4 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 C1380 2018 Toyota RAV4 Code

1. What are the common symptoms of OBDII code C1380 in a 2018 Toyota RAV4?

The common symptoms include the stop lights not working properly, the brake lights staying illuminated at all times, or the brake lights not illuminating when the brake pedal is pressed.

2. What does the OBDII code C1380 in a 2018 Toyota RAV4 indicate?

OBDII code C1380 indicates a malfunction in the stop light control relay circuit of the vehicle.

3. What are the possible causes of the Stop Light Control Relay Malfunction (OBDII code C1380) in a 2018 Toyota RAV4?

Possible causes include a faulty stop light control relay, damaged wiring or connectors in the circuit, or issues with the brake light switch.

4. How can I diagnose the OBDII code C1380 in my 2018 Toyota RAV4?

Diagnosing the code involves inspecting the stop light control relay, checking the wiring and connectors for any damage, and testing the brake light switch for proper operation.

5. What are the repair options for OBDII code C1380 in a 2018 Toyota RAV4?

Repair options may include replacing the faulty stop light control relay, repairing any damaged wiring or connectors, or adjusting/replacing the brake light switch.

6. Can I continue driving my 2018 Toyota RAV4 with OBDII code C1380?

It is not recommended to drive the vehicle with OBDII code C1380, as it can affect the proper functioning of the stop lights, compromising safety on the road.

7. How much does it typically cost to repair OBDII code C1380 in a 2018 Toyota RAV4?

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

8. Are there any DIY tips for addressing OBDII code C1380 in a 2018 Toyota RAV4?

While some basic troubleshooting like checking fuses and connectors can be done by DIY enthusiasts, it is recommended to consult a professional for a proper diagnosis and repair.

9. Will resetting the OBDII code C1380 in my 2018 Toyota RAV4 make it go away?

Simply resetting the code may temporarily clear the warning, but if the underlying issue is not addressed, the code is likely to reappear.

10. Is OBDII code C1380 specific to 2018 Toyota RAV4 vehicles only?

While the specific code may vary across different vehicle makes and models, the concept of a stop light control relay malfunction can be relevant to various vehicles beyond the 2018 Toyota RAV4.