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 LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
- Turn ignition switch ON.
- Select "DATA MONITOR" mode with CONSULT-III.
- Select "LOAD SIGNAL" and check indication under the following conditions.
INDICATION CONDITION CHARTCondition Indication Rear window defogger switch: ON ON Rear window defogger switch: OFF OFF OK or NG
OK: GO TO 2.
NG: GO TO 4.
- CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Check "LOAD SIGNAL" indication under the following conditions.
INDICATION CONDITION CHARTCondition Indication Lighting switch: ON at 2nd position ON Lighting switch: OFF OFF OK or NG
OK: GO TO 3.
NG: GO TO 5.
- CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION
Select "HEATER FAN SW" and check indication under the following conditions.
INDICATION CONDITION CHARTCondition Indication Heater fan control switch: ON ON Heater fan control switch: OFF OFF OK or NG
OK: INSPECTION END
NG: GO TO 6.
- CHECK REAR WINDOW DEFOGGER SYSTEM
Refer to "WORK FLOW ".
INSPECTION END
- CHECK HEADLAMP SYSTEM
Refer to "SYSTEM DESCRIPTION " (For USA) or "SYSTEM DESCRIPTION " (For Canada).
INSPECTION END
- CHECK HEATER FAN CONTROL SYSTEM
Refer to "SELF-DIAGNOSIS FUNCTION ".
INSPECTION END
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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