Component Inspection

Component Inspection

1. MAPS performance test
(1) IG "OFF"
(2) Connect scantool to Data Link Connector (DLC) and select "Oscilloscope" then, connect probes to output signal lines of MAPS and TPS.
(3) Start engine and monitor the waveforms accelerating or decelerating.
Specification :









(4) Is the waveform displayed correctly ? (Compare the response time of TPS and MAPS)





2. Check PCM
(1) IG "OFF" disconnect MAPS connector
(2) Connect Scantool and IG "ON" & ENG "OFF"
(3) Select simulation function on scantool.
(4) Simulate voltage at terminal 1 of MAPS harness connector.




(5) Does the output voltage response to the change of signal by simulation ?






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