Inspect the DLC3

INSPECT THE DLC3







The vehicle's ECM uses V.P.W. (Variable Pulse Width) for communication to comply with SAE J1850. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the V.P.W. format.

HINT:
Connect the cable of the hand-held tester or OBD II scan tool to the DLC3, turn the ignition switch ON and attempt to the scan tool. If the screen displays UNABLE TO CONNECT TO VEHICLE, a problem exists in the vehicle side or the scan tool side.
- If the communication is normal when the tool is connected to another vehicle, inspect the DLC3 of the original vehicle.
- If the communication is still impossible when the tool is connected to another vehicle, the problem is probably in the tool itself. Consult the Service Department listed in the tool's instruction manual.