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
Major Components And Control System
WARNING: This page is about a different car, the 2005 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
BCM MAJOR COMPONENTS AND CONTROL SYSTEM INFORMATION
| System | Input | Output |
|---|---|---|
| Remote keyless entry system | Keyfob |
|
| Power door lock system | Front power door lock/unlock switch (LH, RH) | All door locking actuator |
| Power supply (IGN) to power window and sunroof | Ignition power supply | Power supply to power window and sunroof system |
| Power supply (BAT) to power window and sunroof | Battery power supply | Power supply to power window and sunroof system |
| Panic alarm |
|
IPDM E/R |
| Auto light system |
|
IPDM E/R |
| Battery saver control |
|
IPDM E/R |
| Headlamp | Combination switch | IPDM E/R |
| Tail lamp | Combination switch | IPDM E/R |
| Fog lamp | Combination switch | IPDM E/R |
| Turn signal lamp | Combination switch |
|
| Hazard lamp | Hazard switch |
|
| Room lamp timer |
|
Interior room lamp |
| Key warning chime |
|
Combination meter (warning buzzer) |
| Light warning chime |
|
Combination meter (warning buzzer) |
| Vehicle-speed-sensing intermittent wiper |
|
IPDM E/R |
| Air conditioner switch signal | Front air control | ECM |
| Blower fan switch signal | Front air control | ECM |
Factory Service Tools
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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