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C1380 2018 Toyota RAV4 Code - Stop Light Control Relay Malfunction

Quick Answer

The C1380 diagnostic trouble code (DTC) for a 2018 Toyota RAV4 indicates a malfunction in the stop light control relay. Common causes include Faulty stop light control relay, Wiring issues in the brake light circuit, Corrosion or damage to relay connections. 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 control relay, Wiring issues in the brake light circuit, Corrosion or damage to relay connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 29, 2024
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Code C1380 2018 Toyota RAV4 Description

The C1380 diagnostic trouble code (DTC) for a 2018 Toyota RAV4 indicates a malfunction in the stop light control relay. The stop light control relay is a crucial component of the vehicle's braking system, responsible for activating the stop lights when the brake pedal is pressed. When this relay malfunctions, it can lead to issues with the vehicle's brake lights, affecting visibility for other drivers on the road and compromising overall safety.

OBDII Code C1380 2018 Toyota RAV4 - Stop Light Control Relay Malfunction
C1380 2018 Toyota RAV4 Code - Stop Light Control Relay Malfunction

Common Causes of C1380 2018 Toyota RAV4

  1. Faulty stop light control relay.
  2. Wiring issues in the brake light circuit.
  3. Corrosion or damage to relay connections.
  4. Electrical system malfunction.
  5. Brake light switch failure.

Symptoms of C1380 2018 Toyota RAV4

  1. Brake lights not illuminating when the brake pedal is pressed.
  2. Dashboard warning lights indicating a problem with the braking system.
  3. Reduced visibility for other drivers on the road.
  4. Potential rear-end collisions due to brake light malfunction.

How to Fix C1380 2018 Toyota RAV4

  1. Begin by locating the stop light control relay in the vehicle's fuse box or relay panel.
  2. Test the relay using a multimeter to determine if it is functioning properly.
  3. If the relay is faulty, replace it with a new one that is compatible with the vehicle's make and model.
  4. Check the wiring and connections in the brake light circuit for any signs of damage or corrosion.
  5. Clear the DTC from the vehicle's onboard diagnostic system using a scan tool to reset the system and ensure the issue has been resolved.

Cost to Fix C1380 2018 Toyota RAV4

The typical repair costs for a stop light control relay malfunction can range from $100 to $300, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

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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 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.

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