Code
C2332
Generic
C — Chassis
Yaw rate sensor — implausible signal
Views:
UK: 2
EN: 3
RU: 2
AI status
Completed
Completed
100%
Causes
- Faulty yaw rate (gyroscope/MEMS) sensor
- Damaged, corroded, or loose sensor connector or wiring
- Poor sensor mounting or mechanical damage (sensor not rigidly attached)
- Incorrect sensor orientation or improper installation after service
- Intermittent power supply or ground problem to the sensor
- Communication errors on the vehicle network (CAN/LIN) between sensor/module and ECU
Symptoms
- Stability control / traction control warning light (ESP/DSC/TC)
- ABS warning light may also be illuminated
- Loss or reduction of electronic stability intervention
- Unexpected vehicle yaw/understeer/oversteer behavior under control inputs
- Stored DTCs related to yaw, lateral acceleration, steering angle, or wheel speed sensors
- Erratic or flatlined yaw rate live-data stream (e.g., constant or jumping value)
What to check
- Read DTCs and freeze-frame data with a capable scan tool; record related codes (ABS, steering angle, lateral accel, wheel speed)
- View live data: yaw rate, steering angle, lateral acceleration, wheel speeds and compare plausibility
- Check yaw rate value when vehicle is stationary: should be ~0 deg/s (near mid-scale if voltage output)
- Inspect sensor mounting for damage, looseness, or incorrect orientation
- Visually inspect connector for corrosion, bent pins, water ingress, and ensure secure fit
- Check sensor reference voltage and ground at the connector (typically a regulated 5 V reference and a chassis ground)
Signal parameters
- Yaw rate at rest: ~0 deg/s (sensor output typically mid-scale voltage or zero-rate CAN value)
- Typical usable yaw rate range: approximately ±100–±200 deg/s depending on vehicle
- Update rate: sensor or CAN message usually updates 10–100 Hz (vehicle-dependent)
- Supply/reference voltage: commonly 5 V reference at sensor (verify vehicle spec)
- Signal form: analog voltage, PWM, or digital CAN/LIN message depending on vehicle
- Expected idle signal: stable (very small variation) when stationary; smooth proportional change with steering and lateral acceleration
Diagnostic algorithm
- Safety first: park vehicle, chock wheels, and follow manufacturer safety procedures.
- Connect a full-function scan tool and read all stored and pending codes; note freeze-frame data.
- Verify symptoms with live data: confirm yaw rate reading behavior at rest and during a slow turn; compare to steering angle and wheel speed.
- Inspect the yaw sensor mounting and connector for physical damage, water intrusion, or looseness; repair or secure mounting if needed.
- With ignition on, measure sensor reference voltage and ground at the sensor connector. If reference voltage or ground is out of spec, trace and repair wiring and fuses.
- If the sensor uses an analog or PWM signal, probe the signal line with a multimeter or oscilloscope to check for expected midscale/resting value and clean waveform during rotation.
- Perform a wiggle test on wiring harness and connectors while watching live data to find intermittent opens/shorts.
- Scan the vehicle network for communication errors; if CAN/LIN errors are present, inspect bus wiring and related modules.
- If wiring and power/grounds are good but signal is implausible or absent, replace the yaw rate sensor with an OEM or equivalent part.
- After replacement or repair, perform required sensor calibration/initialization (zero-rate/offset calibration) per manufacturer procedure.
- Clear codes and perform a controlled road test to confirm stable yaw readings and that the fault does not return.
- If fault persists after sensor replacement and wiring verification, consider module-level diagnostics for ABS/ESP control unit or consult manufacturer tech information.
Likely causes
- Sensor internal failure (most common)
- Open/short in signal or reference voltage wire
- Corroded connector pins causing intermittent signal
- Sensor loosened or installed rotated/misaligned
- Faulty 5 V reference or ground at sensor
- CAN bus fault or wiring short causing corrupted data frames
Fault status
Status
Yaw rate sensor — implausible signal detected. Stability control may be disabled. Inspect sensor, wiring, and module communications.
Repair difficulty: Medium
Diagnostic time: 0.5-2.5 hours
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