Component Inspection

Check APS

Ignition "ON" & ENG "OFF".

Measure waveform of APS by pressing and depressing accelerator pedal with scan tool.

SPECIFICATION:

VOLTAGE SPECIFICATION

Pedal Position	Output Voltage (V) [Vref = 5.0V]
Pedal Position	APS1	APS2
C.T	0.7-0.8V	0.275-0.475V
W.O.T	3.8-4.4V	1.75-2.35V

Fig 1: Identifying Signal Waveform

G04804902

Courtesy of KIA MOTORS AMERICA, INC.

Is the measured signal waveform O.K?
YES
- Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NOTE: There is a memory reset function on scan tool that can erase optional parts automatically detected and memorized by ECM.
Before or after testing ECM on the vehicle, use this function before reusing the ECM

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.