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
- COLLECT THE INFORMATION FROM THE CUSTOMER
Get the detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred) using the diagnosis work sheet. Refer to DIAGNOSTIC WORK SHEET .
GO TO 2.
- PERFORM THE SELF-DIAGNOSIS
Check the DTC display with the self-diagnosis function.
Is there any DTC displayed?
YES: GO TO 3.
NO: GO TO 4.
- PERFORM THE SYSTEM DIAGNOSIS
Perform the diagnosis applicable to the displayed DTC. Refer to DTC NO. INDEX .
GO TO 7.
- CHECK THE SYMPTOM THAT IS NOT CONSIDERED A SYSTEM MALFUNCTION
Check that the symptom is a normal operation that is not considered a system malfunction. Refer to DESCRIPTION .
Is the symptom a normal operation?
YES: INSPECTION END
NO: GO TO 5.
- CHECK THE WARNING LAMP AND INDICATOR LAMP FOR ILLUMINATION
Check that the warning lamp and indicator lamp illuminate.
- ABS warning lamp: Refer to DESCRIPTION .
- Brake warning lamp: Refer to DESCRIPTION .
- VDC OFF indicator lamp: Refer to DESCRIPTION .
- SLIP indicator lamp: Refer to DESCRIPTION .
Is ON/OFF timing normal?
YES: GO TO 6.
NO: GO TO 2.
- PERFORM THE DIAGNOSIS BY SYMPTOM
Perform the diagnosis applicable to the symptom.
GO TO 7.
- REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
GO TO 8.
- MEMORY CLEAR
Perform self-diagnosis memory clear.
GO TO 9.
- FINAL CHECK
Perform the self-diagnosis again, and check that the malfunction is repaired completely.
Is no other DTC present and the repair completed?
YES: INSPECTION END
NO: GO TO 3.
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.