LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2005 >> RX 330 AWD V6-3.3L (3MZ-FE) >> Repair and Diagnosis >> Cruise Control >> Testing and Inspection >> Scan Tool Testing and Procedures >> Cruise Control System >> Check DLC3
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Check DLC3

Check the DLC3







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

HINT: If the display shows "UNABLE TO CONNECT TO VEHICLE" after connecting the hand-held tester to the DLC3 and turning the ignition ON, there is a problem either with the vehicle or with the tool.
- If communication is normal when connecting the tool to another vehicle, inspect the DLC3 on the original vehicle.
- If communication is still not possible when connecting the tool to another vehicle, the problem is probably in the tool itself. Consult the Service Department listed in the tool's instruction manual.