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.
2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE
Components Description
WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
COMPONENTS DESCRIPTION
| Component | Vehicle-to-vehicle distance control mode | Conventional (fixed speed) cruise control mode | Brake assist (with preview function) | Description |
|---|---|---|---|---|
| ICC unit | X | X | X | Operates electric throttle control actuator and brake booster based on that sensor signals and CAN communication data, then controls vehicle distance. |
| ICC sensor | X | X | Irradiates laser beam, and receives reflected laser beam to measure distance from preceding vehicle. | |
| ECM | X | X | X | Transmits throttle position signal and ICC steering switch signal to ICC unit through CAN communication. |
| ABS actuator and electric unit (control unit) | X | X | X | Transmits wheel speed sensor signal to ICC unit through CAN communication. |
| Brake pressure sensor | X | X | Detects fluid pressure in master cylinder. | |
| Brake booster | X | X | Adjusts brake fluid pressure, based on command from ICC unit. | |
| BCM | X | Transmit front wiper request signal to ICC unit through CAN communication. | ||
| TCM | X | X | Transmits gear position signal and output shaft revolution signal to ICC unit through CAN communication. | |
| Unified meter and A/C amp. | X | X | X | Receives ICC system display signal, ICC warning lamp signal and buzzer output signal from ICC unit through CAN communication. |
| ICC brake switch, stop lamp switch | X | X | X | Transmit operating signal to ICC unit when touching brake pedal. ICC unit cancels cruise system at driver's brake operation. |
| Parking brake switch | X | X | The cruise system is cancelled when applied. |
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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