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
Electrical Component Locator: Switches
SWITCHES LOCATION
| Component | Location |
|---|---|
| ASCD Brake Switch (M27) | On brake pedal bracket. See Figure . |
| ASCD Clutch Switch (M13) | On clutch pedal bracket. See Figure . |
| Back Up-Lamp Switch (M/T) (1.8L SULEV) (F55) | On left side of transaxle case. See Figure . |
| Back-Up Lamp Switch (M/T) (1.8L ULEV) (F55) | On left side of transaxle case. See Figure . |
| Back-Up Lamp Switch (M/T) (2.5L) (F41) | On left side of transaxle case. See Figure . |
| Brake Fluid Level Switch (E1) | Left rear corner of engine compartment. See Figure . |
| Clutch Interlock Switch | On clutch pedal bracket. See Figure . |
| Oil Pressure Switch (1.8L SULEV) (F32) | Rear of engine. See Figure . |
| Oil Pressure Switch (1.8L ULEV) (F32) | Rear of engine. See Figure . |
| Oil Pressure Switch (2.5L) (F19) | Rear of engine. See Figure . |
| Parking Brake Switch (B9) | Under center console. See Figure . |
| Park/Neutral Position (PNP) Switch (A/T) (2.5L) (F29) | On left rear side of transaxle. See Figure . |
| Park/Neutral Position (PNP) Switch (1.8L SULEV) (F49) | On left rear side of transaxle. See Figure . |
| Park/Neutral Position (PNP) Switch (1.8L ULEV) (F49) | On left rear side of transaxle. See Figure . |
| Park/Neutral Position Switch (M/T) Switch (2.5L) (F42) | On left side of transaxle. See Figure . |
| Seat Belt Buckle Switch (Left) (B8) | In driver's seat belt buckle. See Figure . |
| Stop Lamp Switch (M26) | On brake pedal bracket. See Figure . |
| Washer Fluid Level Switch (E40) | Right front corner of engine compartment. See Figure . |
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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