2.
Measure signal waveform of wheel speed sensor while driving.
a.
Specification :
Engine "ON".
Measure signal waveform of wheel speed sensor while driving.
Specification :
Is the signal waveform normal?
YES
Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.
NO
Substitute with a known - good VSS and check for proper operation. If the problem is corrected, replace VSS and go to "Verification of Vehicle Repair" procedure.
