Component Inspection

■ Wheel Speed Sensor check 

1. Lift vehicle with suitable lift.
2. Ignition "ON" and place gear in "Neutral".
3. Connect GDS to Data Link Connector (DLC).
4. Monitor "Wheel Speed Sensor" parameter in the "Current Data"  with GDS in ABS/ESP system while rotating wheels slowly by hands.

   Specification:  Parameter changes as wheel rotates.

   Fig 1: Scantool Display - Wheel Speed Sensor Parameter In Current Data

   Courtesy of KIA MOTORS AMERICA, INC.
5. Is parameter displayed changes when rotating wheels?

   YES 

   • Substitute with known good AFLS-ECU or HECU and check for proper operation. If the problem is corrected, replace ECU and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
     NOTE: * In case of replacing AFLS-ECU, perform following procedures.

     1. "Parameter Download" for initializing AFLS-ECU. (Refer to B1661 )
     2. "Calibration of Sensors" for height sensor calibration. (Refer to B1637 )

     
     * In case of replacing HECU, perform following procedures.

     1. "ASP Calibration" for steering angle sensor offset correction (Refer to C1261 )
     2. "Longitudinal Sensor Calibration" for Longitudinal sensor offset correction (Refer to C1285 )
     3. "Variant Coding" (Refer to C1702 )

   NO 

   • Substitute with known good Wheel Speed Sensor and check for proper operation. If the problem is corrected, replace Wheel Speed Sensor and go to "VERIFICATION OF VEHICLE REPAIR " procedure.