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Home / DTC / C2150 — Yaw Rate Sensor Circuit Malfunction

C2150 — Yaw Rate Sensor Circuit Malfunction

Detailed page for trouble code C2150.

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C2150

Generic C — Chassis

Yaw Rate Sensor Circuit Malfunction

Brand: Generic
Type: C — Chassis
Views: UK: 5 EN: 4 RU: 3
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Page language: EN

Causes

  • Damaged or corroded sensor connector or wiring (open, short, high resistance)
  • Poor or missing sensor power/ground or reference voltage
  • Faulty yaw rate (gyroscope/MEMS) sensor
  • Loose or damaged sensor mounting (mechanical alignment issue)
  • Faulty ABS/ESC control module or internal amplifier
  • CAN/serial communication fault or software anomaly

Symptoms

  • ABS, ESC, or traction control warning lamp illuminated
  • Stability control disabled or degraded vehicle handling assistance
  • Increased ABS/ESC intervention or unexpected braking behavior
  • Stored yaw-rate-related trouble codes and possible limp/limited functionality
  • Intermittent fault may cause sporadic warnings or loss of stability assist

What to check

  • Use a scan tool to read and record C2150 plus any additional ABS/ESC codes and freeze frame data
  • Perform a visual inspection of the yaw sensor, connector, and wiring harness for damage, corrosion, chafing, or disconnection
  • Check that the sensor is securely mounted and not misaligned or loose
  • Verify power and ground at the sensor connector with ignition ON using a digital multimeter
  • Check for proper reference voltage/sensor output per manufacturer specification (see signal_params)
  • Monitor live data from the yaw sensor with scan tool while slowly turning steering/wheels or during a low-speed drive to see signal change

Signal parameters

  • Two common types: analog ratiometric output or digital (CAN/SPI) output depending on vehicle
  • Typical analog behavior: center (zero yaw) voltage around ~2.5 V (reference) with voltage deviation proportional to yaw rate; expected range commonly within 0–5 V (manufacturer-specific)
  • Typical sensitivity: sensor voltage changes proportionally with angular rate (units expressed as V/deg/s or mV/deg/s) — refer to OEM spec for exact sensitivity
  • Digital sensors transmit angular rate as degrees/second over CAN or SPI; check message frequency and checksum validity
  • Expected behavior: stable zero-center output at rest, smooth proportional change when vehicle rotates; no erratic spikes or open-circuit indications

Diagnostic algorithm

  1. Connect scan tool, record codes and live data, note freeze frame conditions
  2. Inspect sensor, wiring, and connectors for physical damage, corrosion, or loose mounting
  3. With ignition ON, verify sensor supply voltage (reference) and ground at the sensor connector per OEM spec (typically a reference voltage ~2.5 V for analog sensors or 5 V/3.3 V supply for digital)
  4. Measure sensor output at rest — analog should be near mid-scale (e.g., ~2.5 V) and should move smoothly when vehicle is yawed or when steering is turned; use oscilloscope if available to check waveform quality
  5. Perform continuity and resistance checks between sensor connector and ABS/ESC module to rule out wiring opens/shorts; inspect for high resistance grounds
  6. If communication-type sensor, verify CAN bus is healthy (check other CAN devices, bus voltage, and termination) and that messages from the sensor are present and valid
  7. Wiggle the harness and connectors while monitoring for code set or data dropouts to find intermittent faults
  8. If wiring and power/ground are good and sensor output is out of range or erratic, replace the yaw rate sensor
  9. After repair or replacement, clear codes and perform required calibration/initialization of the yaw sensor per OEM procedure (many systems require calibration or a drive routine)
  10. Re-scan and test-drive to confirm the fault does not return and that ESC/ABS systems operate normally

Likely causes

  • Wiring or connector damage at sensor or module (most common)
  • Failed yaw rate sensor
  • Missing or bad sensor reference voltage/ground

Fault status

⚠️ Status
Yaw Rate Sensor Circuit Malfunction — stability control/ABS may be limited until fault is cleared and proper sensor operation restored.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

C2151 C1171 C1234 C0035 C1255
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