Operation CHARM: Car repair manuals for everyone.
Home >> Lexus >> 2005 >> SC 430 V8-4.3L (3UZ-FE) >> Repair and Diagnosis >> Instrument Panel, Gauges and Warning Indicators >> Testing and Inspection >> Scan Tool Testing and Procedures >> Check DLC3
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Check DLC3

CHECK DLC3




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






HINT: Connect the cable of the hand-held tester to the DLC3, turn the ignition switch ON and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.




- If communication is normal when the hand-held tester is connected to another vehicle, inspect the DLC3 on the original vehicle.
- If communication is still not possible when the tester is connected to another vehicle, the problem is probably in the tester itself.Consult the Service Department listed in the tester's instruction manual.
pro multis · About Operation CHARM