Component Inspection

CMPS check.
1. Key "ON". (Don't disconnect sensors.)
2. Select "vehicle scopemeter" in the menu, and connect channel A of scantool with terminal 2 of CMPS harness connector.
3. Engine start. And check the signal waveforms.
  SPECIFICATION:
  
  Fig 1: CKPS And CMPS Signal Waveform Graph
4. Is the signal waveform within specifications?
  YES : --> Substitute with a known-good ECM/PCM and check for proper operation. If the problem is corrected, replace ECM/PCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  
  NO : --> Substitute with a known-good CMPS and check for proper operation. If the problem is corrected, replace CMPS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.