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.
Horn Reminder Check
- CHECK HORN
Check if horn sounds with horn switch.
Does horn operate?
- Yes: GO TO 2.
- No: Check horn circuit. Refer to "HORN ".
- SELF-DIAGNOSTIC RESULT CHECK
With CONSULT-II
- Select "BCM" on "SELECT SYSTEM" screen.
- Select "BCM C/U" on "SELECT TEST ITEM" screen, and select "SELF-DIAG RESULTS".
- Check display content in self-diagnostic results.
Contents displayed?
- No malfunction : GO TO 4 .
- Malfunction in CAN communication system : GO TO 3.
- Malfunction in diagnosis system or head lamp switch system : BCS-16, "Combination Switch Inspection According to Self-Diagnostic Results".
- SYMPTOM CHECK
With CONSULT-II
- Select "CAN DIAGNOSIS SUPPORT MONITOR" in "DATA MONITOR".
- Select "START" and check display content.
- : After printing the monitor items, go to "CAN System". Refer to "CAN COMMUNICATION ".
- CHECK HORN REMINDER OPERATION WITH CONSULT-II
With CONSULT-II
- Select "ACTIVE TEST" in "MULTI REMOTE ENT" with CONSULT-II.
- Select "HORN" and touch ON.
Horn should sound.
OK or NG?
- OK: Horn reminder operation is OK.
- NG: Replace BCM.
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.
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