AutoCodesToyota – C1277 2016 Toyota RAV4

C1277 2016 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 2016 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 215
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 2016 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 2016 Toyota RAV4 - Abnormal Change in Output Signal of Rear Speed Sensor Right - AutoCodes.com
C1277 2016 Toyota RAV4 Code - Abnormal Change in Output Signal of Rear Speed Sensor Right

What are the Possible Causes of the DTC C1277 2016 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 2016 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 2016 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 2016 Toyota RAV4 code?

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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 2016 Toyota RAV4 Code

1. What does the OBDII code C1277 mean on a 2016 Toyota RAV4?

The code C1277 indicates an abnormal change in the output signal of the rear speed sensor on the right side, which affects the vehicle’s stability and ABS systems.

2. What are the common symptoms of code C1277 in a 2016 Toyota RAV4?

Symptoms may include ABS and traction control warning lights on, reduced braking performance, or erratic behavior in stability control functions.

3. What causes code C1277 to appear in a 2016 Toyota RAV4?

Common causes include a faulty right rear wheel speed sensor, damaged wiring or connectors, or issues with the ABS control module.

4. Can driving with code C1277 damage my 2016 Toyota RAV4 further?

Driving with this code may compromise the ABS and traction control systems, which can affect safety during emergency braking or slippery conditions.

5. How can I diagnose the cause of code C1277 in my Toyota RAV4?

Inspect the right rear wheel speed sensor and its wiring for damage, use a multimeter to test the sensor, and check the ABS module for errors.

6. How do I fix the OBDII code C1277 on a 2016 Toyota RAV4?

Repairs may involve replacing the faulty right rear wheel speed sensor, repairing damaged wiring, or recalibrating the ABS system.

7. How much does it cost to fix code C1277 on a 2016 Toyota RAV4?

Costs vary depending on the issue, but replacing a wheel speed sensor typically ranges from $100 to $300, including labor.

8. Can I clear code C1277 without fixing the issue?

Clearing the code without addressing the underlying problem will likely result in the code returning and may compromise system functionality.

9. Is a faulty ABS control module a possible cause of code C1277?

Yes, although less common, a malfunctioning ABS control module can cause signal irregularities leading to this code.

10. How can I prevent code C1277 from recurring in my 2016 Toyota RAV4?

Regular maintenance, including inspecting sensors and wiring for damage, can help prevent recurrence of the code.

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