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Home >> Land Rover >> 2012 >> Range Rover Sport HSE >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Ride And Handling Optimization >> Ride And Handling Optimization >> Diagnosis And Testing >> Active Stabilization System >> Symptom Chart

Symptom Chart

Symptom Possible Causes Action
Poor on-center response
  • System bleed required
  • Stabilizer bar bushes
  • Residual pressure
  • Steering angle sensor offset
  • Control module adaptive data
Carry out the manual bleed procedure. See ACTIVE STABILIZATION SYSTEM BLEEDING . Check the stabilizer bar bushes. Refer to See FRONT STABILIZER BAR BUSHING - 4.2L  and See FRONT STABILIZER BAR BUSHING - 3.6L (TDV8) DIESEL  and See REAR STABILIZER BAR BUSHING . Check for residual pressure in the system. Check and calibrate the steering angle sensor, clear the adaptive data after calibration. and Refer to Steering Angle Sensor .
Asymmetrical response
  • Steering angle sensor offset
  • Accelerometer calibration
  • System bleed required
Check and calibrate the steering angle sensor, clear the adaptive data after calibration. Refer to Steering Angle Sensor . Calibrate the accelerometers using the approved diagnostic system. Carry out the manual bleed procedure. and See ACTIVE STABILIZATION SYSTEM BLEEDING .
Excessive roll
  • System bleed required
  • Stabilizer bar bushes
  • Stabilizer bar drop-links
Carry out the manual bleed procedure. See ACTIVE STABILIZATION SYSTEM BLEEDING . Check the stabilizer bar bushes and drop links Refer to See FRONT STABILIZER BAR BUSHING - 4.2L  and See FRONT STABILIZER BAR BUSHING - 3.6L (TDV8) DIESEL  and See REAR STABILIZER BAR BUSHING .
Powered roll-rock
  • Harness faults
  • Valve block fault
  • Control module adaptive data
  • Accelerometer fault
Check for DTCs indicating any of the possible causes are present.
Oversteer or understeer
  • Stabilizer bar drop-links
  • System actuators
Check the stabilizer bar drop links and the system actuators. Refer to See FRONT STABILIZER BAR BUSHING - 4.2L  and See FRONT STABILIZER BAR BUSHING - 3.6L (TDV8) DIESEL  and See REAR STABILIZER BAR BUSHING .