Component Inspection (Non-Abs Vehicle)

Engine "ON".
Measure signal waveform of wheel speed sensor while driving.
SPECIFICATION :

Fig 1: Scan Tool Display - Signal Waveform
Courtesy of KIA MOTORS AMERICA, INC.
Is the signal waveform normal?
YES
- Substitute with a known - good ECM/PCM and check for proper operation. If the problem is corrected, replace ECM/PCM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by ECM/PCM.
Before or after testing ECM/PCM on the vehicle, use this function to reuse the ECM/PCM

NO
- Substitute with a 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.