For Using OBD II Scan Tool Or Hand-Held Tester
- Before using the tester, read its user article thoroughly.
- Connect the cable of the tester to DLC3, turn the ignition switch ON and operate the tester. If the tester connect communicate with the ECU controlled system, there is a problem on the vehicle side or tester side.
- If communication is normal when the tester is connected to another vehicle, inspect the diagnosis data link line (Bus line) or ECU power circuit of the vehicle.
- If communication is still not possible when the tester is connected the another vehicle, the problem lies in the tester. Perform the Self Test procedures outlined in the Tester Operator's Manual