C1279 Code - Acceleration Sensor Output Voltage Malfunction
Quick Answer
The Skid Control ECU (Brake Actuator Assembly) receives signals from the Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly) via the Controller Area Network (CAN) communication system. Common causes include Acceleration Sensor Calibration, Faulty Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly), Airbag Sensor Assembly 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
- C1279 indicates Acceleration Sensor Output Voltage Malfunction.
- Common causes
- Common causes include Acceleration Sensor Calibration, Faulty Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly), Airbag Sensor Assembly 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.
Code C1279 Description
The Airbag Sensor Assembly has a built-in Yaw Rate Sensor and Acceleration Sensor and detects the vehicle's condition.
If there is trouble in the bus lines between the Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly) and the CAN communication system, the Diagnostic Trouble Code (DTC) U0124 (malfunction in CAN communication with the acceleration sensor) is output.
These DTCs are also output when calibration has not been completed.
What are the Possible Causes of the DTC C1279?
- Acceleration Sensor Calibration
- Faulty Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly)
- Airbag Sensor Assembly harness is open or shorted
- Airbag Sensor Assembly circuit poor electrical connection
How to Fix the DTC C1279?
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 C1279 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 C1279 code?
Need more information on how to fix the C1279 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1279 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- C1279 Ford — Yaw Rate Sensor Circuit Failure
- C1279 Lexus — Acceleration Sensor Output Voltage Malfunction
- C1279 Lincoln — Yaw Rate Sensor Circuit Failure
- C1279 Mercury — Yaw Rate Sensor Circuit Failure
- C1279 Scion — Acceleration Sensor Output Voltage Malfunction
- C1279 Toyota — Acceleration Sensor Output Voltage Malfunction
Frequently Asked Questions about C1279 Code
1. What are the common symptoms of OBDII code C1279 (Acceleration Sensor Output Voltage Malfunction)?
- Common symptoms include issues with the vehicle's stability control system, traction control system, and potential loss of power during acceleration.
2. What are the possible causes of OBDII code C1279?
- The code C1279 can be triggered by a faulty acceleration sensor, damaged wiring or connectors related to the sensor, or issues with the stability control module.
3. How can I diagnose the cause of OBDII code C1279?
- Diagnosing the code typically involves using a diagnostic scanner to retrieve the specific details of the code, inspecting the acceleration sensor and its connections, and checking for any visible signs of damage.
4. Can I still drive my vehicle with OBDII code C1279 present?
- It is not recommended to drive the vehicle with code C1279 present, as it can affect the vehicle's stability and traction control systems, potentially compromising your safety on the road.
5. How can I repair OBDII code C1279?
- Repairing the code usually involves replacing the faulty acceleration sensor, repairing or replacing damaged wiring or connectors, and clearing the code with a diagnostic scanner.
6. Can a DIY enthusiast fix OBDII code C1279 at home?
- Depending on the level of expertise, some DIY enthusiasts may be able to fix the issue at home by following repair guides and using the necessary tools. However, if unsure, it is recommended to seek professional help.
7. Will OBDII code C1279 cause permanent damage to my vehicle if left unaddressed?
- Leaving code C1279 unaddressed can potentially lead to further damage to the stability control system and other related components. It is best to address the issue promptly to avoid any long-term damage.
8. How long does it typically take to repair OBDII code C1279?
- The repair time for code C1279 can vary depending on the exact cause of the issue and the availability of parts. In general, it may take a few hours to a day to diagnose and repair the problem.
9. Is it necessary to reset the vehicle's computer after repairing OBDII code C1279?
- Yes, it is essential to reset the vehicle's computer after repairing code C1279 to clear the fault code and ensure proper operation of the stability and traction control systems.
10. Can extreme weather conditions affect the occurrence of OBDII code C1279?
- Extreme weather conditions, such as extreme heat or cold, can potentially affect the performance of sensors and electronic components in the vehicle, leading to the triggering of code C1279.
Discuss the causes and fixes for C1279 OBDII Code
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
