AutoCodes – Generic – C0209

C0209 Code - Yaw Rate Sensor Signals Voltage

Quick Answer

The Vehicle Stability Enhancement System (VSES) is activated when the Electronic Brake Control Module (EBCM) determines that the desired yaw rate does not match the actual yaw rate. Common causes include Faulty Yaw Rate Sensor, Yaw Rate Sensor harness is open or shorted, Yaw Rate Sensor circuit poor electrical connection. 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
C0209 indicates Yaw Rate Sensor Signals Voltage.
Common causes
Common causes include Faulty Yaw Rate Sensor, Yaw Rate Sensor harness is open or shorted, Yaw Rate Sensor circuit poor electrical connection.
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 1,916
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 09, 2020
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Code C0209 Description

The Vehicle Stability Enhancement System (VSES) is activated when the Electronic Brake Control Module (EBCM) determines that the desired yaw rate does not match the actual yaw rate. The desired yaw rate is calculated from the measured steering wheel position, vehicle speed, and lateral acceleration. With no sensor bias present, a volt signal from these sensors is interpreted by the EBCM respectively as follows:
- Zero yaw rate.
- Zero lateral acceleration.
- Zero longitudinal acceleration.
The sensor bias compensates, during VSES initialization, for sensor mounting alignment errors, electronic signal errors, temperature changes, and manufacturing differences.
OBDII Code C0209 - Yaw Rate Sensor Signals Voltage - AutoCodes.com
C0209 Code - Yaw Rate Sensor Signals Voltage

What are the Possible Causes of the DTC C0209?

  • Faulty Yaw Rate Sensor
  • Yaw Rate Sensor harness is open or shorted
  • Yaw Rate Sensor circuit poor electrical connection

How to Fix the DTC C0209?

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 C0209 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 C0209 code?

Need more information on how to fix the C0209 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0209 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 C0209 Code

1. What are the common symptoms of OBDII code C0209 (Yaw Rate Sensor Signals Voltage)?

- Common symptoms include the malfunction indicator light (MIL) illuminating on the dashboard, stability control issues, and possible loss of traction control.

2. What can cause OBDII code C0209 to trigger?

- Possible causes include a faulty yaw rate sensor, damaged wiring or connectors related to the yaw rate sensor, or a problem with the vehicle's electronic stability control (ESC) system.

3. How serious is OBDII code C0209?

- This code is considered moderately serious as it can affect the vehicle's stability control system, potentially compromising the handling and safety of the vehicle.

4. How can I diagnose OBDII code C0209?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code, followed by inspecting the yaw rate sensor, its wiring, and related components for any signs of damage or malfunction.

5. Can I continue driving with OBDII code C0209 present?

- It is not recommended to drive with this code active, as it can impact the vehicle's stability control system and compromise safety.

6. How can I repair OBDII code C0209?

- Repair options may include replacing the faulty yaw rate sensor, repairing or replacing damaged wiring or connectors, or addressing any underlying issues with the ESC system.

7. Can I reset OBDII code C0209 without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is important to address the root cause to prevent the issue from recurring and potentially affecting the vehicle's safety systems.

8. How much does it cost to fix OBDII code C0209?

- The cost of repair can vary depending on the specific cause of the code, but it may involve the expense of replacing the yaw rate sensor, repairing wiring, or addressing ESC system issues.

9. Are there any DIY tips for troubleshooting OBDII code C0209?

- DIY troubleshooting tips may include checking for loose or damaged wiring connections, ensuring the yaw rate sensor is securely mounted and functional, and performing a visual inspection for any obvious issues.

10. How long does it take to repair OBDII code C0209?

- The repair time can vary based on the complexity of the issue and the specific components that need attention. It is advisable to consult a professional mechanic for an accurate estimate.

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