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.
2014 Nissan-Datsun Versa Note S PlusFACTORY OEM SERVICE PROCEDURE
Input/Output Signal Chart
| Sensor | Input signal to ECM | ECM function | Actuator | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Crankshaft position sensor (POS) | Engine speed(3) Piston position |
Ignition timing control | Ignition coil (with power transistor) | ||||||||
| Camshaft position sensor (PHASE) | |||||||||||
| Mass air flow sensor | Amount of intake air | ||||||||||
| Engine coolant temperature sensor | Engine coolant temperature | ||||||||||
| Throttle position sensor | Throttle position | ||||||||||
| Accelerator pedal position sensor | Accelerator pedal position | ||||||||||
| Park/neutral position (PNP) switch(1) | PNP signal | ||||||||||
| Transmission range switch(2) | |||||||||||
| Battery | Battery voltage(3) | ||||||||||
| Knock sensor | Engine knocking | ||||||||||
| Combination meter | Vehicle speed(4) | ||||||||||
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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.