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Home >> Toyota >> 2005 >> Corolla L4-1.8L (1ZZ-FE) >> Repair and Diagnosis >> Cruise Control >> Testing and Inspection >> Scan Tool Testing and Procedures >> Check the DLC3
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Check the DLC3

CHECK THE DLC3




The vehicle's ECM uses ISO 9141-2 for communication.

The terminal arrangement of the 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 switch on, there is a problem with either the vehicle or the tool. (hand-held tester only)

- If communication is normal when the tool is connected to another vehicle, inspect the DLC3 on the original vehicle.
- If communication is still impossible 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.
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