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.
Door Lock Function Malfunction
2006 Infiniti FX35 AWDSECTION Door Lock Function Malfunction
Before conducting the diagnosis in the following table, check all power door lock system function. Refer to "POWER DOOR LOCK SYSTEM ".
TROUBLE DIAGNOSIS SYMPTOM CHART
| Symptom | Diagnoses service procedure |
|---|---|
| Door lock/unlock does not operate when door request switch operation is used (power door lock system is normal). | 1. Check door lock/unlock setting. See WORK SUPPORT |
| 2. CHECK OUTSIDE KEY ANTENNA | |
| 3. INTELLIGENT KEY BATTERY INSPECTION | |
| 4. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | |
| Door lock/unlock do not operate using door request switch operated (power door lock system is normal). | 1. CHECK DOOR SWITCH |
| 2. CHECK KEY SWITCH (INTELLIGENT KEY UNIT INPUT) | |
| 3. CHECK IGNITION KNOB SWITCH | |
| 4. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | |
| Driver side selective door unlock function does not operate, when door request switch is operated. (All other door lock function is OK.) | 1. Check selective door unlock setting. See WORK SUPPORT |
| 2. Replace BCM. See REMOVAL AND INSTALLATION OF BCM | |
| Passenger side selective door unlock function does not operate, when door request switch is operated. (All other door lock function is OK.) | 1. Check selective door unlock setting. See WORK SUPPORT |
| 2. Check passenger side select unlock relay. See CHECK SELECT UNLOCK RELAY | |
| 3. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | |
| Hazard lamps do not flash during door lock operation using door request switch operated. (Turn signal lamp operation is normal.) (All other door lock function is OK.) |
1. Check key reminder setting. See WORK SUPPORT |
| 2. Replace BCM. See REMOVAL AND INSTALLATION OF BCM | |
| 3. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | |
| Hazard lamps do not flash during door lock operation using door request switch operated. (Turn signal lamps do not operate.) | CHECK HAZARD FUNCTION |
| Intelligent Key warning buzzer does not sound during door lock/unlock operation using Intelligent Key (regardless of whether Intelligent Key remote controller button or request switch operation is used). | 1. Check if the operation confirmation Intelligent Key warning buzzer was cancelled by the CONSULT-II settings change function. See WORK SUPPORT |
| 2. CHECK INTELLIGENT KEY WARNING BUZZER | |
| 3. Replace Intelligent Key unit. See REMOVAL AND INSTALLATION OF INTELLIGENT KEY UNIT | |
| Door lock/unlock operation confirmation Intelligent Key warning buzzer sounds, but door lock actuator does not operate. (And hazard lamps do not flash.) | 1. CHECK CAN COMMUNICATION |
| 2. 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.