Component Inspection

Component Inspection

1. Check APS
(1) Ignition "ON" & ENG "OFF".
(2) Measure waveform of APS by pressing and depressing accelerator pedal with scantool.
A. Specification :









(3) 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.

CAUTION:
There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by ECM.
Before or after testing ECM on the vehicle, use this function to reuse the ECM on the others

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.