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 signal waveforms during accelerating and decelerating
A. Specification :













(4) Is the waveform displayed correctly ? (Compare the response time of TPS and MAPS)
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
> After replacing MAPS with new one, if it operates normally, replace MAPS and go to "Verification of Vehicle Repair".