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.
Detailed Flow
- GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the "Diagnostic Work Sheet". (Refer to Diagnostic Work Sheet )
GO TO 2.
- CHECK DTC
- Check DTC of "All DTC Reading" using CONSULT.
- Perform the following procedure if DTC is displayed.
- Record DTC and freeze frame data. (Or, write it down.)
- Check related service bulletins for information.
Is any DTCs detected?
YES
Perform the trouble diagnosis for DTC indicated.
NO
GO TO 3.
- CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
Also study the normal operation related to the system. Refer to System Description .
GO TO 4.
- CHECK ECO MODE SWITCH CIRCUIT
Check ECO mode switch circuit. Refer to Diagnosis Procedure .
Is inspection result normal?
YES
GO TO 5.
NO
Repair or replace malfunctioning component.
- CHECK ECO MODE SWITCH AND METER INDICATION
- Ignition switch OFF and wait at least 10 seconds.
- Ignition switch ON.
- Check that STANDARD is displayed on the information display screen of the combination meter.
- Check that the view of information display changes as ECO mode indicator signal (OFF).
- Check that the view of information display changes as ECO mode indicator signal (ON).
Is the inspection result normal?
YES
Inspection End.
NO
Check intermittent incident. Refer to Intermittent Incident .
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
