How To Diagnose The Can Bus Line

WARNING: This page is about a different car, the 2004 Mitsubishi Galant. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tools:

MB991958: Scan tool (MUT-III sub assembly)
MB991824: V.C.I.
MB991827: MUT-III USB cable
MB991910: MUT-III main harness A

CAUTION: To prevent damage to scan tool, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool.

Connect scan tool to the data link connector.

Fig 1: Connecting Scan Tool To The Data Link Connector
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Turn the ignition switch to the "ON" position.
Select "CAN bus diagnosis" from the start-up screen.
When the vehicle information is displayed, confirm that it matches the vehicle.
- If the information is correct, go to step 8.
- If not, go to step 5.
Select "view vehicle information" button.
Input the vehicle information and press "OK".
When the vehicle information is displayed, confirm again that it matches the vehicle which is diagnosed CAN bus line.
- If they match, go to step 8.
- If not, go to step 5.
Press the "OK" button.
When the options are displayed, choose the options (mark the check) and then select "OK".