AutoCodes – Toyota – C1277 2015 Toyota RAV4

C1277 2015 Toyota RAV4 Code - Abnormal Change in Output Signal of Rear Speed Sensor Right

Quick Answer

The speed sensor detects the wheel speed and sends the appropriate signals to the Skid Control ECU (Brake Actuator Assembly). Common causes include Faulty Rear Speed Sensor Right, Rear Speed Sensor Right Rotor (Rear Axle Hub and Bearing Assembly Right), Rear Speed Sensor Right harness is open or shorted. 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
C1277 2015 Toyota RAV4 indicates Abnormal Change in Output Signal of Rear Speed Sensor Right.
Common causes
Common causes include Faulty Rear Speed Sensor Right, Rear Speed Sensor Right Rotor (Rear Axle Hub and Bearing Assembly Right), Rear Speed Sensor Right harness is open or shorted.
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 252
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 21, 2024
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Code C1277 2015 Toyota RAV4 Description

The speed sensor detects the wheel speed and sends the appropriate signals to the Skid Control ECU (Brake Actuator Assembly). These signals are used for Anti-Lock Brake System (ABS) control. Speed sensor rotors have rows of alternating N and S magnetic poles, and their magnetic fields change when the rotors turn. Each speed sensor detects that magnetic change and sends a pulse signal to the Skid Control ECU (Brake Actuator Assembly).
OBDII Code C1277 2015 Toyota RAV4 - Abnormal Change in Output Signal of Rear Speed Sensor Right - AutoCodes.com
C1277 2015 Toyota RAV4 Code - Abnormal Change in Output Signal of Rear Speed Sensor Right

What are the Possible Causes of the DTC C1277 2015 Toyota RAV4?

  • Faulty Rear Speed Sensor Right
  • Rear Speed Sensor Right Rotor (Rear Axle Hub and Bearing Assembly Right)
  • Rear Speed Sensor Right harness is open or shorted
  • Rear Speed Sensor Right circuit poor electrical connection

How to Fix the DTC C1277 2015 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1277 2015 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 C1277 2015 Toyota RAV4 code?

Need more information on how to fix the C1277 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

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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 C1277 2015 Toyota RAV4 Code

1. What are the common symptoms of OBDII code C1277 in a 2015 Toyota RAV4?

- Common symptoms include the ABS light being illuminated on the dashboard, stability control issues, and potentially reduced braking performance.

2. What does the OBDII code C1277 in a 2015 Toyota RAV4 indicate?

- This code indicates an abnormal change in the output signal of the rear speed sensor on the right side of the vehicle.

3. What are the possible causes of OBDII code C1277 in a 2015 Toyota RAV4?

- Possible causes include a faulty rear speed sensor on the right side, damaged wiring or connectors, or issues with the ABS module.

4. How can I diagnose the source of OBDII code C1277 in my 2015 Toyota RAV4?

- Diagnosing the issue typically involves checking the rear speed sensor, inspecting the wiring and connectors for damage, and using a diagnostic tool to read the code and monitor sensor data.

5. Can I still drive my 2015 Toyota RAV4 with OBDII code C1277?

- It is not recommended to drive the vehicle with this code present, as it can affect the ABS and stability control systems, potentially compromising safety.

6. How can I repair OBDII code C1277 in my 2015 Toyota RAV4?

- Repair options include replacing the rear speed sensor on the right side, repairing any damaged wiring or connectors, and resetting the ABS system.

7. Is it possible to reset OBDII code C1277 in a 2015 Toyota RAV4 without fixing the underlying issue?

- While you can clear the code using a diagnostic tool, it will likely reappear if the root cause, such as a faulty sensor, is not addressed.

8. Are there any common DIY fixes for OBDII code C1277 in a 2015 Toyota RAV4?

- DIY fixes may include checking and cleaning the sensor connections, ensuring proper sensor alignment, and inspecting for any visible damage.

9. How much does it typically cost to repair OBDII code C1277 in a 2015 Toyota RAV4 at a mechanic or dealership?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay for parts and labor, which can range from a few hundred to over a thousand dollars.

10. How can regular maintenance help prevent OBDII code C1277 in a 2015 Toyota RAV4?

- Regularly inspecting and maintaining the ABS system, including sensors and wiring, can help prevent issues like code C1277 from occurring.

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