How To Diagnose The Can Bus Line

2007 Mitsubishi Endeavor SE, FWDSECTION How To Diagnose The Can Bus Line

Required Special Tools:Β 

  • MB991958: Scan Tool (M.U.T.-III Sub Assembly)
    • MB991824: Vehicle Communication Interface (V.C.I.)
    • MB991827: M.U.T.-III USB Cable
    • MB991910: M.U.T.-III Main Harness A
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
  1. Connect scan tool MB991958 to the data link connector.
  2. Turn the ignition switch to the "ON" position.
  3. Select "CAN bus diagnosis" from the start-up screen.
  4. When the vehicle information is displayed, confirm that it matches the vehicle whose CAN bus lines will be diagnosed.
    • If they match, go to step Β 8.
    • If not, go to step 5.
  5. Select "view vehicle information" button.
  6. When the vehicle information is displayed, confirm again that it matches the vehicle which is being diagnosed.
    • If they match, go to step Β 8.
    • If not, go to step Β 5.
  7. Press the "OK" button.
  8. When the options are displayed, choose the options (mark the check) and then select "OK".
    Fig 1: Connecting Scan Tool To Data Link Connector
    G04231129Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.