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
Component Description
WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
| Component part | Description |
|---|---|
| TCM | TCM supplies power to the starter relay inside the IPDM E/R when the selector lever is shifted to the P or N position. |
| BCM | BCM sends a starter request signal to the CPU of the IPDM E/R over the CAN communication lines. |
| IPDM E/R | CPU inside IPDM E/R operates the starter relay at the request of the BCM over the CAN communication lines. |
| Starter motor | The starter motor plunger closes and the motor is supplied with battery power, which in turn cranks the engine, when the "S" terminal is supplied with electric power. |
Factory Service Tools
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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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