AutoCodes – Generic – C1275

C1275 Code - Abnormal Change in Output Signal of Front Right Speed Sensor

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 Front Speed Sensor Right, Front Speed Sensor Right Rotor (Front Axle Hub Sub-Assembly Right), Front 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: C1275 indicates Abnormal Change in Output Signal of Front Right Speed Sensor.
Common causes: Common causes include Faulty Front Speed Sensor Right, Front Speed Sensor Right Rotor (Front Axle Hub Sub-Assembly Right), Front 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 28,539

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 20, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1275 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 C1275 - Abnormal Change in Output Signal of Front Right Speed Sensor - AutoCodes.com — C1275 Code - Abnormal Change in Output Signal of Front Right Speed Sensor

What does this mean?

What are the Possible Causes of the DTC C1275?

Faulty Front Speed Sensor Right
Front Speed Sensor Right Rotor (Front Axle Hub Sub-Assembly Right)
Front Speed Sensor Right harness is open or shorted
Front Speed Sensor Right circuit poor electrical connection

How to Fix the DTC C1275?

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 does this mean?

Code Tech Notes

If no damage to the speed sensor tip is found during this inspection, do not replace the speed sensor.
If there is iron powder sticking to the rotor, this will result in a malfunction, so confirm that the rotor is not contaminated with foreign material before replacing the sensor.
Check the speed sensor signal after cleaning or replacement.
On most vehicles, the Front Speed Sensor Rotor is incorporated into the Front Axle Hub Sub-Assembly. If the Speed Sensor Rotor needs to be replaced, replace it together with the Front Axle Hub Sub-Assembly.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1275 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 C1275 code?

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Need Help with the Code?

Get the C1275 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C1275 Buick — PCM Serial Data Malfunction
C1275 Cadillac — PCM Serial Data Malfunction
C1275 Chevrolet — PCM Serial Data Malfunction
C1275 GMC — PCM Serial Data Malfunction
C1275 Hyundai — G-Sensor Open Or Short To Ground
C1275 KIA — G-Sensor Open Or Short To Ground
C1275 Lexus — Abnormal Change in Output Signal of Front Right Speed Sensor
C1275 Pontiac — PCM Serial Data Malfunction
C1275 Saturn — PCM Serial Data Malfunction
C1275 Scion — Abnormal Change in Output Signal of Front Right Speed Sensor
C1275 Toyota — Abnormal Change in Output Signal of Front Right Speed Sensor

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 C1275 Code

1. What are the common symptoms of OBDII code C1275 related to the abnormal change in output signal of the front right speed sensor?

- Common symptoms include ABS warning light illumination, traction control system malfunctions, and erratic speedometer readings.

2. What are the possible causes of OBDII code C1275 indicating an abnormal change in output signal of the front right speed sensor?

- Possible causes include a faulty front right speed sensor, damaged sensor wiring, corroded connectors, or issues with the ABS control module.

3. How can I diagnose the OBDII code C1275 related to the front right speed sensor issue?

- Diagnose the problem by conducting a visual inspection of the sensor and its wiring, performing a scan tool test to check for error codes, and conducting a road test to verify the symptoms.

4. Can I continue driving my vehicle with OBDII code C1275 triggered by the front right speed sensor problem?

- It is not recommended to continue driving the vehicle with this code present, as it may compromise the ABS and traction control systems, leading to potential safety risks.

5. How can I repair OBDII code C1275 indicating an abnormal change in the output signal of the front right speed sensor?

- Repair options include replacing the front right speed sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or addressing any issues with the ABS control module.

6. Are there any DIY tips for addressing OBDII code C1275 associated with the front right speed sensor issue?

- DIY tips include checking and cleaning sensor connectors, inspecting and repairing damaged wiring, and following manufacturer-specific repair procedures outlined in the service manual.

7. Will resetting the OBDII code C1275 clear the issue with the front right speed sensor?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the abnormal change in the output signal of the front right speed sensor.

8. How much does it typically cost to repair OBDII code C1275 related to the front right speed sensor problem?

- The cost of repair can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor at a repair shop.

9. Can extreme weather conditions affect the front right speed sensor and trigger OBDII code C1275?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially damage the sensor or its wiring, leading to the triggering of code C1275.

10. Is it necessary to have the ABS system recalibrated after repairing OBDII code C1275 caused by the front right speed sensor issue?

- In most cases, recalibration of the ABS system is not required after repairing the front right speed sensor issue unless specifically recommended by the manufacturer or outlined in the repair procedures.