Hyundai/Kia Longitudinal G Sensor Calibration
Supported coding features by HiCOM diagnostic tool https://www.obdtester.com/hicom
Longitudinal G Sensor Calibration
What it does
- Calibrates the longitudinal (forward/backward) acceleration sensor
- Provides accurate data to ABS, ESC, and traction control systems
- Ensures proper stability and braking intervention
When it is required
- After replacing the longitudinal G sensor
- After ABS/ESC module replacement
- After suspension or chassis repairs affecting vehicle geometry
- When ABS/ESC warning lights are active
Conditions that must be met
- Vehicle stationary on level ground
- No movement during calibration
- Steering wheel centered
- Ignition ON, engine OFF
- Stable battery voltage
- No active ABS/ESC fault codes
What happens during calibration
- Sensor zero (baseline) acceleration is stored
- ECU uses the value for:
- Brake force distribution
- Traction control intervention
- Stability control calculations
If calibration is not performed
- ABS or ESC may intervene incorrectly
- Traction control may behave inconsistently
- Warning lights may remain active
- Reduced vehicle stability during dynamic driving
After calibration
- Verify live data for longitudinal acceleration at rest
- Perform a short test drive
- Confirm proper ABS/ESC function
- Ensure warning lights are cleared