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.
2003 Nissan-Datsun Sentra SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE
ASCD Brake Switch: Wiring Diagram
WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
For PG, go to POWER SUPPLY, GROUND & CIRCUIT ELEMENTS .
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
CONNECTOR TERMINAL SPECIFICATION DATA REFERENCE VALUES
| TERMINAL NO. | WIRE COLOR | ITEM | CONDITION | DATA (DC Voltage) |
|---|---|---|---|---|
| 101 | R/G | Stop lamp switch | [Ignition switch: OFF]
|
Approximately 0V |
[Ignition switch: OFF]
|
BATTERY VOLTAGE (11 - 14V) | |||
| 108 | G/B | ASCD brake switch | [Ignition switch: ON]
|
BATTERY VOLTAGE (11 - 14V) |
[Ignition switch: ON]
|
Approximately 0V |
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.