C0799 - Active Yaw Rate Sensor Fault in 2010-2020 Toyota Camry and Honda Accord

Quick Answer

C0799 means: C0799 indicates a problem with the active yaw rate sensor, crucial for vehicle stability control.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with C0799? Immediate attention is advised to maintain vehicle safety.

Common Questions

What does C0799 mean and how does it affect my car?

The C0799 code indicates a fault with the yaw rate sensor, which plays a vital role in your vehicle's stability system. If this sensor fails, your car may exhibit handling issues, especially during turns or on slippery roads. Over time, ignoring this code can lead to increased wear on other components and compromise your safety.

What are the most common causes of C0799 and how much does it cost to fix?

Common causes of C0799 include a faulty yaw rate sensor, damaged wiring, or poor calibration after suspension repairs. Repair costs typically range from $150 to $300 for sensor replacement, with additional costs for wiring repairs if needed.

Can I drive my car with C0799 or should I stop immediately?

While you might still be able to drive your car with a C0799 code, it's not advisable to do so for long. The stability control system may not function properly, increasing the risk of losing control in slippery conditions. It's best to have the vehicle inspected as soon as possible.

How can I diagnose C0799 myself using GeekOBD APP?

To diagnose C0799 using the GeekOBD APP, connect the app to your vehicle's OBD2 port and run a full scan. Review the diagnostic trouble codes it retrieves, paying special attention to the C0799 code and any associated codes. You can also check freeze frame data to see under what conditions the code was triggered.

What vehicles are most commonly affected by C0799?

C0799 is commonly reported in vehicles like the 2010-2020 Toyota Camry and Honda Accord. Regular maintenance and monitoring for warning lights can help catch issues early.

How can I prevent C0799 from happening again?

To prevent C0799 from reoccurring, ensure regular maintenance of your vehicle's electronic systems, including periodic checks of the yaw rate sensor and its wiring. Be cautious during repairs to the suspension system, ensuring proper calibration is completed afterward.

What is C0799?

The diagnostic trouble code (DTC) C0799 indicates an issue with the active yaw rate sensor, a crucial component in your vehicle's stability control system. This sensor measures the vehicle's rotation around its vertical axis, helping the electronic stability control system to maintain traction and prevent skidding during sharp turns or slippery conditions. When the C0799 code is triggered, it often means that the yaw rate sensor is malfunctioning or the system is unable to communicate with it properly. This can occur due to wiring issues, sensor failure, or faults in the stability control module. In real-world terms, a vehicle experiencing a C0799 code may exhibit handling issues, such as difficulty in making turns or instability during adverse weather conditions. If left unaddressed, this problem can lead to compromised vehicle safety, especially during emergency maneuvers. Therefore, it's essential for car owners, particularly those with vehicles like the 2010-2020 Toyota Camry or Honda Accord, to take this code seriously and seek diagnostics and repairs promptly to ensure safe driving experiences.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C0799 is present:

  • The check engine light may illuminate, indicating a malfunction in the stability control system.
  • Drivers may notice the vehicle feels unstable during turns, suggesting the yaw rate sensor is not functioning properly.
  • There may be a reduction in traction control, leading to increased difficulty in handling the vehicle on slippery surfaces.
  • Unexpected activation of the stability control system could occur, causing the system to engage without an apparent reason.
  • In some cases, the ABS warning light may also come on, indicating a related issue within the braking system.

Possible Causes

Most common causes of C0799 (ordered by frequency):

  1. The most common cause of C0799 is a faulty yaw rate sensor, which occurs in about 60% of cases. This failure can be due to wear and tear or exposure to harsh conditions.
  2. Another possible cause is damaged wiring or connectors leading to the yaw rate sensor, which can account for 25% of issues. Corrosion or physical damage can disrupt the sensor's performance.
  3. Poor calibration after a suspension repair can also trigger this code, making it crucial to ensure proper alignment and calibration after any suspension work.
  4. Less commonly, a failure in the electronic stability control module can lead to a C0799 code, indicating a serious issue that requires professional diagnosis.
  5. In rare cases, software glitches in the vehicle's ECU could falsely trigger the C0799 code, which may be resolved with a software update.

C0799 Repair Costs

Cost Breakdown by Repair Type

Yaw Rate Sensor Replacement

Replacing the faulty yaw rate sensor will restore normal functionality to the stability control system.

  • Total: $150 - $300
  • Success rate: 85%
Wiring Repair

Repairing or replacing damaged wiring and connectors related to the yaw rate sensor.

  • Total: $100 - $200
  • Success rate: 75%
ECU Software Update

Updating the vehicle's ECU software to resolve any glitches that may falsely trigger the C0799 code.

  • Total: $50 - $100
  • Success rate: 60%
Money-Saving Tips for C0799
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional C0799 Diagnosis Process

Follow these systematic steps to accurately diagnose C0799. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Conduct an initial visual inspection of the wiring and connectors related to the yaw rate sensor for any visible damage or corrosion (5-10 minutes)

Step 1: Conduct an initial visual inspection of the wiring and connectors related to the yaw rate sensor for any visible damage or corrosion (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan, retrieving all diagnostic trouble codes and freeze frame data to gain context about the fault (10-15 minutes)

Step 2: Use the GeekOBD APP to perform an OBD2 scan, retrieving all diagnostic trouble codes and freeze frame data to gain context about the fault (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Test the yaw rate sensor and its wiring using a multimeter, checking for appropriate voltage and continuity (20-30 minutes)

Step 3: Test the yaw rate sensor and its wiring using a multimeter, checking for appropriate voltage and continuity (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: Conduct a system function test after repairs are made to ensure everything is operating correctly and clear the codes (10-15 minutes)

Step 4: Conduct a system function test after repairs are made to ensure everything is operating correctly and clear the codes (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Perform a road test under various driving conditions to confirm the stability control system is functioning as intended (15-20 minutes)

Step 5: Perform a road test under various driving conditions to confirm the stability control system is functioning as intended (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: Yaw Rate Sensor Replacement in a 2018 Toyota Camry

Vehicle: 2018 Toyota Camry, 45,000 miles

Problem: Customer reported the stability control light was on and handling felt unstable during sharp turns.

Diagnosis: Diagnostic scan revealed C0799 code and confirmed yaw rate sensor failure through multimeter testing.

Solution: Replaced the yaw rate sensor and cleared the trouble code.

Cost: $250 (sensor cost: $180, labor: $70)

Result: After the repair, the vehicle's stability control system functioned normally, and the customer reported improved handling.

Case Study 2: Wiring Repair on a 2015 Honda Accord

Vehicle: 2015 Honda Accord, 60,000 miles

Problem: The stability control light was illuminated, and the car felt less stable in wet conditions.

Diagnosis: OBD2 scan indicated C0799; visual inspection found damaged wiring near the yaw rate sensor.

Solution: Repaired the damaged wiring and verified the sensor's functionality.

Cost: $150 (wiring repair cost: $100, labor: $50)

Result: The C0799 code was cleared, and the stability control system was restored to full operation.

Diagnose C0799

Use GeekOBD APP for professional diagnosis!

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  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: C0799
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes