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.
Pre-Inspection for Multi-System Diagnostic
The engine start function, door lock function, power distribution system and NATS-NVIS are closely related to each other. Narrow down the system in question by performing this inspection to identify which system is malfunctioning. For example, the vehicle security system can operate only when the door lock and power distribution system are operating normally.
- CHECK DOOR LOCK OPERATION
Check the door lock for normal operation with the Intelligent Key and door request switch.
Successful door lock operation with the Intelligent Key and request switch indicates that the remote keyless entry receiver and inside key antenna required for engine start are functioning normally.
Can the door be locked with the Intelligent Key and door request switch?
YES: GO TO 2.
NO: Refer to "SYMPTOM TABLE ".
- CHECK ENGINE STARTING
Check that the engine starts when the Intelligent Key is inserted into the key slot.
Does the engine start?
YES: GO TO 3.
NO: Refer to "SYMPTOM TABLE ".
- CHECK POWER SUPPLY INDICATOR SWITCHING
Press push-button ignition switch and check that the position indicator switches from LOCK, through ACC to ON.
Is each position indicator illuminating?
YES: GO TO 4.
NO: Refer to "COMPONENT FUNCTION CHECK ".
- CHECK VEHICLE SECURITY SYSTEM
Check the vehicle security system for normal operation. Refer to "VEHICLE SECURITY OPERATION CHECK ".
Are the inspection results normal?
YES: Inspection End.
NO: Repair vehicle security system as necessary.
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.