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.
2012 Nissan-Datsun Altima BaseFACTORY OEM SERVICE PROCEDURE
Component Description
| BCM | Reference |
|---|---|
| IPDM E/R | SYSTEM DESCRIPTION |
| Ignition relay-1 (Built-in IPDM E/R) | B2618 BCM |
| Ignition relay-2 (Built-in fuse block) | B2616 IGNITION RELAY CIRCUIT |
| Accessory relay | B2611 ACC RELAY |
| Blower relay | B2615 BLOWER RELAY CIRCUIT |
| Stop lamp | B2555 STOP LAMP |
| Transmission range switch | B2604 PNP SWITCH |
| Push-button ignition switch | B2556 PUSH-BUTTON IGNITION SWITCH |
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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