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.
Diagnosis Procedure
- CHECK STOP/START PROHIBIT CAUSE
With CONSULT Select "Stop/Start prohibit cause data recorder" in "WORK SUPPORT" mode of "ENGINE" using CONSULT. Does "Stop/Start prohibit cause data recorder" show fail-safe?
YES>>
GO TO 2.
NO>>
Check the operating status of system stop / start. Refer to System Description . After confirmation, go to 4.
- CHECK "Stop/Start error" OF CONSULT DATA MONITOR ITEM
With CONSULT
- Select "Stop/Start error" in "Monitor Menu" of "DATA MONITOR" mode in CONSULT.
- Check the displayed data monitor items. Refer to CONSULT Function .
Are there any "NG" monitor items?
YES>>
After confirming the "NG" item, go to 3.
NO>>
GO TO 3.
- CHECK DTC
With CONSULT Perform "All DTC Reading" with CONSULT. Does it detect the DTC associated with "Stop/Start error" of "DATA MONITOR"?
YES>>
Perform trouble diagnosis of detected DTC. After repairing the defective part, go to 4.
NO>>
GO TO 4.
- CHECK STOP/START INDICATOR / LAMP
Check the stop/start indicator / lamp.
WARNING LAMP/INDICATOR LAMP / INDICATOR CONDITION Stop/start indicator / lamp Not blinking Is the stop/start indicator / lamp blinking?
YES>>
Refer to Symptom Table .
NO>>
INSPECTION END
NO RELATED
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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.