C0055

Q: What does OBD2 code C0055 mean?

C0055 means: Yaw Rate Sensor Circuit Malfunction. The yaw rate sensor, which measures the vehicle's rotation around its vertical axis for stability control, has a circuit fault.

Yaw Rate Sensor Circuit Malfunction

The yaw rate sensor, which measures the vehicle's rotation around its vertical axis for stability control, has a circuit fault.

SeverityModerate

CategoryABS / Brakes

Est. Repair Cost$200-$450

Code TypeChassis

DIY RepairProfessional

⚡ Common Causes

›Faulty yaw rate sensor
›Sensor mounting misalignment
›Wiring/connector fault
›Vehicle involved in prior collision affecting sensor mount

⚠️ Symptoms

›Stability control warning light on
›ESC system may be disabled
›Reduced stability control performance

✅ How to Fix — Step by Step

Step 1:Scan and inspect yaw sensor wiring
Step 2:Check sensor mounting and alignment
Step 3:Replace sensor if faulty
Step 4:Recalibrate after replacement

🔧 Diagnostic Tools Required

✔OBD-II Diagnostic Scanner
✔ABS Scanner
✔Digital Multimeter
✔Wheel Speed Sensor Tester
✔Basic Hand Tools

Using the correct diagnostic tools helps identify the root cause of C0055 before replacing parts unnecessarily. Always confirm the fault using live data and manufacturer-recommended diagnostic procedures.

💡 Pro Tip: Yaw rate sensors often require calibration on a level surface after replacement - many shops skip this step.

Repair Cost Estimate

Full Repair Estimate

$200-$450

DIY Possible?

PRO

Severity

Moderate

Frequently Asked Questions

What does OBD2 code C0055 mean?+

C0055 stands for Yaw Rate Sensor Circuit Malfunction. The yaw rate sensor, which measures the vehicle's rotation around its vertical axis for stability control, has a circuit fault.

What causes code C0055?+

Faulty yaw rate sensor; Sensor mounting misalignment; Wiring/connector fault; Vehicle involved in prior collision affecting sensor mount

How do I fix code C0055?+

Scan and inspect yaw sensor wiring; Check sensor mounting and alignment; Replace sensor if faulty; Recalibrate after replacement

How much does it cost to fix C0055?+

Estimated repair cost for C0055 is $200-$450.

Is C0055 DIY-friendly?+

C0055 typically requires professional equipment and a qualified mechanic.