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.
2008 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE
Input/Output Signal Chart
INPUT/OUTPUT SIGNAL CHART
| Sensor | Input signal to ECM | ECM function | Actuator | ||
|---|---|---|---|---|---|
| ASCD brake switch | Brake pedal operation | ASCD vehicle speed control | Electric throttle control actuator | ||
| Stop lamp switch | |||||
| ASCD clutch switch (M/T models) | Clutch pedal operation | ||||
| ASCD steering switch | ASCD steering switch operation | ||||
| Park/neutral position (PNP) switch | Gear position | ||||
| Combination meter | Vehicle speed(1) | ||||
| TCM (CVT models) | Powertrain revolution(1) | ||||
|
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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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