Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Check CAN Communication System
- CHECK SELF-DIAGNOSTIC RESULTS CAUTION: If CONSULT-III is used with no connection of CONSULT-III CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which performs CAN communication.
With CONSULT-III
- Connect CONSULT-III, and turn ignition switch ON.
- Touch "INTELLIGENT KEY" on "SELECT SYSTEM" screen.
- Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.
- Check display content in self-diagnostic results.SELF-DIAG RESULTS
CONSULT-III display item DTC code NO DTC IS DETECTED - CAN COMM CIRCUIT U1000 CONTROL UNIT (CAN) U1010
OK or NG
NO DTC IS DETECTED >> INSPECTION END
CAN COMM CIRCUIT [U1000] >> After printing "SELF-DIAGNOSIS RESULTS", go to "CAN SYSTEM", Refer to PRECAUTIONS FOR TROUBLE DIAGNOSIS
CONTROL UNIT(CAN) [U1010] >> Replace Intelligent Key unit.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.