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.
Power Supply and Ground Circuit Check
- CHECK POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect Intelligent Key unit connector.
- Check voltage between Intelligent Key unit harness connector M42 terminals 6, 11 and ground.CONNECTOR TERMINAL VOLTAGE SPECIFICATION
Connector Terminals Ignition switch position M42 (+) (-) OFF ON 6 Ground 0V Battery voltage 11 Battery voltage Battery voltage
OK or NG
OK: GO TO 2.
NG: Repair or replace Intelligent Key power supply circuit.
- CHECK GROUND CIRCUIT
Check continuity between Intelligent Key unit harness connector M42 terminal 12 and ground.
12 - Ground : Continuity should exist.
OK or NG
OK: Power supply and ground circuits are OK.
NG: Repair or replace the Intelligent Key unit ground circuit.
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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