Component Inspection

■ Check APS 

1. IG "OFF" and install a GDS.
2. Connect probe to APS1 and APS2 to check signal waveform by using oscilloscope function.
3. Measure signal waveform of APS by pressing and depressing accelerator pedal.

   Specification:  Signal waveform will be displayed as follows.

   Fig 1: Measuring Signal Waveform Of APS

   Courtesy of KIA MOTORS AMERICA, INC.
4. Is the measured signal waveform OK?

   YES 

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

   NO 

   • Substitute with a known-good APS and check for proper operation. If the problem is corrected, replace APS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.