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.
Intelligent Key Operation Inspection
2006 Infiniti FX35 AWDSECTION Intelligent Key Operation Inspection
TROUBLE DIAGNOSIS SYMPTOM CHART
| Symptom | Diagnoses service procedure | |
|---|---|---|
| Ignition knob can not turn | KEY warning lamp on combination meter lights up in red when ignition knob is pressed. (door lock functions normal) | 1. INTELLIGENT KEY BATTERY INSPECTION |
| 2. CHECK INSIDE KEY ANTENNA | ||
| 3. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | ||
| KEY warning lamp on combination meter lights up in green when ignition knob is pressed. | 1. CHECK IGNITION KNOB SWITCH | |
| 2. CHECK STEERING LOCK UNIT | ||
| 3. CHECK INTELLIGENT KEY UNIT POWER SUPPLY AND GROUND CIRCUIT | ||
| 4. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | ||
| Ignition knob turns even without both Intelligent Key and mechanical key. | Replace steering lock unit | |
| Security indicator will still flash when ignition knob is pressed. | 1. CHECK KEY SWITCH (INTELLIGENT KEY UNIT INPUT) | |
| 2. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | ||
| Security indicator does not flash with ignition knob released at LOCK position. (push switch OFF) | 1. CAN COMMUNICATION SYSTEM | |
| 2. IGNITION KNOB SWITCH SYSTEM | ||
| 3. INTELLIGENT KEY UNIT POWER SUPPLY AND GROUND CIRCUIT | ||
| Starter motor does not cranking. (Ignition knob can turn) | 1. CHECK DETENTION SWITCH | |
| 2. CHECK STOP LAMP SWITCH | ||
| 3. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | ||
RENDER: 1.0x
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.