Check DLC3

Check the DLC3







The ECM uses ISO 9141-2 for data communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 9141-2 format.

HINT: If the hand-held tester display shows "UNABLE TO CONNECT TO VEHICLE" after connecting the tester to the DLC3 and turning the ignition to the ON position, there is a problem in either the vehicle or the tester itself.

- If communication is normal when connecting the tester to another vehicle, inspect the DLC3 on the original vehicle.
- If communication is still not possible when connecting the tester to another vehicle, it suggests the problem exists in the tester. In this case, consult the Service Department listed in the tester's instruction manual.