Data Link Connector: Testing and Inspection

Data Link Connector Terminal Identification:

Reference Chart:

DCL3 INSPECTION
The vehicle's ECM uses V.P.W. (Variable Pulse Width) for communication to comply with SAE J 1850. The terminal arrangement of DLC3 complies with SAE J1962 and matches the V.P.W. format.

HINT: If your display shows "UNABLE TO CONNECT TO VEHICLE" when you have connected the cable of the OBD II scan tool or LEXUS hand-held tester to DCL 3, turned the ignition switch ON and operated the scan tool, there is a problem on the vehicle side or tool side.

(1) If communication is normal when the tool is connected to another vehicle, inspect DLC3 on the original vehicle.
(2) If communication is still not possible when the tool is connected to another vehicle, the problem is probably in the tool itself, so consult the Service Department listed in the tool's instruction manual.