Code
C0292
HUMMER
C — Chassis
Yaw Rate Sensor Circuit — Implausible Signal
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UK: 11
EN: 14
RU: 6
AI status
Completed
Completed
100%
Causes
- Damaged or loose yaw rate sensor
- Corroded or damaged wiring/connector (open, short to power, short to ground)
- Poor sensor reference or ground (low supply voltage, high resistance ground)
- Intermittent connector contact or corrosion
- Failed yaw rate sensor (internal electronics)
- Faulty ABS/ESC control module or internal input circuit
Symptoms
- ABS, ESC, TRAC or Check Engine/Service Stability lights illuminated
- Stability control/traction control disabled or reduced functionality
- Unexpected ABS/traction braking events or lack of intervention during slip
- Diagnostic trouble codes stored for yaw rate or related sensors
- Vehicle may feel less stable during cornering or emergency maneuvers
What to check
- Read codes and freeze frame data with a calibrated scan tool; record all related DTCs
- Check for pending codes and instance counts; attempt to clear codes and re-run self-tests
- Inspect sensor location and mounting for physical damage, contamination, or loose bolts
- Visually inspect wiring and connector for corrosion, bent pins, exposed conductors or rubbing damage
- Check vehicle battery voltage and charging system health (low system voltage can cause implausible signals)
- Check for communications errors to ABS/ESC module (other modules reporting U-codes)
Signal parameters
- Typical yaw sensor idle output: ~2.5 V (midrail) with angular rate around 0 deg/s — swings above/below with rotation (vehicle-specific)
- Expected signal range often within ~0.5–4.5 V (depends on sensor and vehicle)
- Yaw rate reported by ECU in degrees/second (deg/s). Near 0 deg/s in straight-line travel; positive/negative for rotation left/right
- Signal should change smoothly and proportionally with steering input and vehicle yaw; no abrupt spikes, dropouts, or flatlines
- Sensor reference: regulated 5 V or 3.3 V supply and a solid ground; check for stable reference voltage under load
Diagnostic algorithm
- Connect a professional scan tool; record C0292 and any related codes (steering angle, lateral accel, wheel speed, communication U-codes). Save freeze-frame data.
- With ignition ON, key on engine off (KOEO), monitor yaw rate sensor supply/reference voltage and signal at the sensor connector: confirm reference (5 V or 3.3 V) and ground presence. If reference missing/erratic, trace power/ignition feed and fuses.
- Backprobe sensor signal with DMM and/or oscilloscope while gently rotating vehicle or turning steering wheel (wheels off ground or during slow controlled movement). Expect midrail voltage at rest and smooth change with rotation. Look for noise, dropouts, or stuck values.
- Inspect and wiggle harness and connectors while watching live data for intermittent changes. Repair rubbing wires, replace damaged connectors, secure harness away from heat/moving parts.
- Measure continuity/resistance between sensor connector and ABS/ESC module pins; check for shorts to battery voltage or ground. Repair any open/shorts.
- Cross-check reported yaw rate against steering angle and wheel speed sensors using live data: if yaw rate does not follow steering/wheel speed logically, suspect sensor or module input fault.
- If wiring and supply are good but signal is implausible, replace the yaw rate sensor. After replacement, perform required sensor zero/calibration or vehicle stability module calibration per service procedure.
- If new sensor does not clear fault and wiring is verified, suspect ABS/ESC control module input failure or communications fault; test/replace module as last resort and reprogram if required.
- Clear DTCs and perform a road test with the scan tool connected to confirm proper operation and that no DTCs return.
Likely causes
- Corroded sensor connector or pin(s)
- Broken or chafed harness between sensor and ABS/ESC module
- Sensor supply or ground fault (low 5V/3.3V reference or high resistance ground)
- Sensor internal failure (stuck or noisy output)
- Module input circuit fault or lost communication with ABS/ESC module
Fault status
Status
Yaw Rate Sensor Circuit — Implausible Signal. Stability/ABS control may be limited or disabled until fault is resolved.
Repair difficulty: Medium
Diagnostic time: 1.5 - 4.0 hours
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