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Home >> Mitsubishi >> 2003 >> Lancer ES, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems - Except Evolution >> On-Vehicle Service >> Auto-Cruise Control System Component Check >> Throttle Position Sensor >> Check Using Oscilloscope
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Check Using Oscilloscope

  1. Disconnect the throttle position sensor connector and connect the test harness special tool MB991907 in between. (All terminals should be connected.)
  2. Connect the oscilloscope probe to the throttle position sensor side connector terminal No. 1. See Fig 1 .
  3. Turn the ignition switch to the ON position.
  4. Slowly move the throttle lever from the idle position to the full throttle position and check then if the waveform is free from any noise. See Fig 2 .
    5. NOTE: After replacement, the throttle position sensor should be adjusted.
  5. If any noise is recognized, replace the throttle position sensor.
Fig 1: Connecting Oscilloscope Probe To Throttle Position Sensor Terminal No. 1
G00370190Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 2: Checking Throttle Position Sensor Waveform
G00370191Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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