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Home >> Toyota >> 2004 >> MR2 Spyder L4-1.8L (1ZZ-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Data Link Connector >> Description and Operation
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Data Link Connector: Description and Operation

CHECK DLC3







The vehicle's ECM uses the ISO 9141-2 communication protocol. 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 or the OBD II scan tool to the DLC3, turn the ignition switch ON and attempt to use the hand-held tester or the OBD II scan tool. If the screen displays UNABLE TO CONNECT TO VEHICLE, a problem exists in the vehicle side or the tester side.

- If the 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. Consult the Service Department listed in the tool's instruction manual.
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