C2611

Code

Generic C — Chassis

Yaw Rate Sensor Circuit Range/Performance

Brand: Generic

Type: C — Chassis

Views: UK: 8 EN: 17 RU: 7

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Page language: EN

Causes

Faulty yaw rate (angular rate) sensor
Damaged wiring or poor connector connection to sensor
Incorrect sensor orientation or loose mounting
Sensor contamination, impact damage, or internal fault
Intermittent supply voltage or poor ground at sensor
Faulty ABS/ESC control module or software issue

Symptoms

ABS, ESC or traction control warning lamp illuminated
Stability/ESC intervention disabled or reduced functionality
Possible unexpected stability control or ABS activation
Diagnostic trouble code stored; related codes for steering angle or wheel speed may appear
Vehicle may feel less stable during cornering; cruise/advanced driver aids may be unavailable

What to check

Read stored freeze frame and related codes with a capable scan tool (ABS/ESC modules)
Visually inspect yaw rate sensor and mounting for damage, correct orientation, and secure fasteners
Inspect harness and connector for corrosion, bent pins, water intrusion, chafing, or broken wires
Monitor live yaw rate sensor data and compare to calculated yaw (from wheel speeds/steering angle) during a low-speed turn
Check sensor supply voltage and ground at the connector with key ON (typical 5V or vehicle-specific supply)
Perform wiggle tests on wiring/connectors while monitoring signal for intermittent behavior

Signal parameters

Typical behavior: output changes sign and magnitude with yaw rate; zero yaw ≈ mid-supply (e.g., ~2.5 V) on analog sensors (vehicle-specific)
Sensitivity varies by manufacturer; common sensitivity range ≈ 0.02–0.10 V/°/s — consult OEM data
Supply: commonly 5 V reference or vehicle-specific supply; check OEM spec before diagnosing
Digital sensors may report angular rate on CAN/LIN/SPI — verify message presence, frequency, and valid payload
Expected idle noise: small steady voltage with minimal drift; large offsets, jumping values, or flatline indicate fault

Diagnostic algorithm

Connect a full-function scan tool and record C2611 plus any related codes (steering angle, wheel speed, IMU). Note freeze frame data.
Visually inspect sensor and wiring; repair any obvious damage or corrosion. Ensure sensor mounting is tight and correct orientation.
With ignition ON, backprobe sensor connector: verify reference supply, ground continuity, and signal voltage. Compare to OEM values.
Monitor live yaw rate output while performing slow left/right turns; compare sensor output to calculated yaw from wheel speeds and steering angle. Look for wrong sign, low magnitude, saturation, or dropouts.
Wiggle harness/connectors while monitoring data to find intermittents. Repair broken wires, pins, or poor connections.
If analog voltage out of range or no signal, replace sensor. If digital messages missing, check LIN/CAN wiring and test module communications.
After repair or replacement, clear codes and perform required sensor calibration/learn procedures per OEM. Re-test with road test and live data monitoring.
If fault persists with correct sensor signals, suspect ABS/ESC module fault or require OEM software update; consult manufacturer service information.

Likely causes

Yaw rate sensor internal failure or degraded MEMS element
Broken, corroded or disconnected sensor connector/wiring (open/short to +V/GND/signal)
Sensor installed rotated/shifted from correct orientation or loose mounting bolt
Low or noisy sensor supply voltage or bad ground
Mismatched/calibration error after sensor replacement (no sensor adaptation performed)

Fault status

⚠️ Status

Yaw rate sensor performance out of range. Stability control/ABS functions may be reduced or disabled. Inspect sensor, wiring, and perform required calibration.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.5-3.0 hours