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 of TCM
WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
INPUT/OUTPUT SIGNAL OF TCM
| Control item | Line pressure control | Vehicle speed control | Shift control | Lock-up control | Engine brake control | Fail-safe function(3) | Self-diagnostics function | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Input | Accelerator pedal position signal(5) | X | X | X | X | X | X | X | |||||||||||||
| Vehicle speed sensor A/T (revolution sensor) | X | X | X | X | X | X | X | ||||||||||||||
| Vehicle speed sensor MTR(1)(5) | X | ||||||||||||||||||||
| Closed throttle position signal(5) | X(2) | X | X | X | X(4) | ||||||||||||||||
| Wide open throttle position signal(5) | X | X(4) | |||||||||||||||||||
| Turbine revolution sensor 1 | X | X | X | X | X | ||||||||||||||||
| Turbine revolution sensor 2 (for 4th speed only) | X | X | X | X | X | ||||||||||||||||
| Engine speed signals(5) | X | X | X | X | X | X | X | ||||||||||||||
| Stop lamp switch signal(5) | X | X | X | X(4) | |||||||||||||||||
| A/T fluid temperature sensors 1, 2 | X | X | X | X | X | X | |||||||||||||||
| ASCD | Operation signal(4) | X | X | X | |||||||||||||||||
| Overdrive cancel signal(5) | X | ||||||||||||||||||||
| Output | Direct clutch solenoid (ATF pressure switch 5) | X | X | X | X | ||||||||||||||||
| Input clutch solenoid (ATF pressure switch 3) | X | X | X | X | |||||||||||||||||
| High and low reverse clutch solenoid (ATF pressure switch 6) | X | X | X | X | |||||||||||||||||
| Front brake solenoid (ATF pressure switch 1) | X | X | X | X | |||||||||||||||||
| Low coast brake solenoid (ATF pressure switch 2) | X | X | X | X | X | ||||||||||||||||
| Line pressure solenoid | X | X | X | X | X | X | X | ||||||||||||||
| TCC solenoid | X | X | X | ||||||||||||||||||
| Self-diagnosis table(6) | X | ||||||||||||||||||||
| Starter relay | X | X | |||||||||||||||||||
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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.
