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.
2003 Infiniti FX45FACTORY OEM SERVICE PROCEDURE
Specifications With CONSULT-II
AWD CONTROL UNIT INSPECTION
| Items to be monitored | Contents | Data monitor | |||||
|---|---|---|---|---|---|---|---|
| Condition | Reference values | ||||||
| FR RH SENSOR (km/h) | Right front wheel speed | When stopping | 0 km/h | ||||
| When running (1) | Almost the same as speed meter indication | ||||||
| FR LH SENSOR (km/h) | Left front wheel speed | When stopping | 0 km/h | ||||
| When running (1) | Almost the same as speed meter indication | ||||||
| RR RH SENSOR (km/h) | Right rear wheel speed | When stopping | 0 km/h | ||||
| When running (1) | Almost the same as speed meter indication | ||||||
| RR LH SENSOR (km/h) | Left rear wheel speed | When stopping | 0 km/h | ||||
| When running (1) | Almost the same as speed meter indication | ||||||
| BATTERY VOLT (V) | Battery voltage supplied to control unit | Ignition switch ON | Approx. 10 - 16 V | ||||
| THRTL POS SEN (%) | Throttle valve open/close condition | When depressing accelerator pedal | 0 - 100% (Value rises gradually in response to throttle position.) | ||||
| ETS SOLENOID (A) (1) | AWD solenoid valve condition of electric current value monitor | LOCK mode, when engine running (Accelerator pedal depressed) | Approx. 2.0 A | ||||
| STOP LAMP SW (ON/OFF) | Condition of brake pedal operation | Brake pedal depressed | ON | ||||
| Brake pedal without depressed | OFF | ||||||
| ENG SPEED SIG (STOP/RUN) | With engine running | Engine speed below 400 rpm | STOP | ||||
| Engine speed 400 rpm or higher | RUN | ||||||
| ETS ACTUATOR (ON/OFF) | AWD actuator relay (integrated in AWD control unit) activation condition | Engine stop (Ignition switch ON) | OFF | ||||
| Engine running | ON | ||||||
| 4WD WARN LAMP (ON/OFF) | AWD warning lamp condition | AWD warning lamp ON | ON | ||||
| AWD warning lamp OFF | OFF | ||||||
| 4WD MODE SW (AUTO, LOCK) | Input condition of AWD lock switch | Engine running, vehicle stopped, AWD lock switch ON | LOCK | ||||
| Engine running, vehicle stopped, AWD lock switch OFF | AUTO | ||||||
| 4WD MODE MON (AUTO, LOCK) | Input condition of AWD LOCK indicator lamp signal | Engine running, vehicle stopped | Using AWD lock switch | ||||
| DIS-TIRE MONI (mm) | Improper size tire installed condition | Normal size tire installed | 0 - 4 mm | ||||
| Front/rear tire size difference, wear condition | 4 - 8 mm, 8 - mm | ||||||
| P BRAKE SW (ON/OFF) | Parking brake switch operating condition | Parking brake operated | ON | ||||
| Parking brake not operated | OFF | ||||||
|
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Factory Service Tools
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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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