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.
2005 Nissan-Datsun Altima SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| ABS Actuator & Electric Unit (Control Unit) | On lower right rear of engine compartment. See Figure . |
| Air Bag Diagnosis Sensor Unit | Below center console, between seats. See Figure . |
| BCM (Body Control Module) | Behind left side of dash. See Figure . |
| Daytime Light Control Unit (Canada) | Under left side of dash. See Figure . |
| Display Control Unit (With Navi) (M94 & M95) | Behind center of dash. See Figure . |
| Display Unit (M93) | Behind center of dash. See Figure . |
| ECM | Behind glove box. See Figure . |
| Front Left Side Air Bag Module (B10) | Under left front seat. See Figure . |
| Front Passenger Air Bag Module (M77) | Behind right side of dash. See Figure . |
| Front Right Side Air Bag Module (B112) | Under right front seat. See Figure . |
| Immobilizer Control Unit | On left side of steering column. See Figure . |
| IPDM E/R | On right front of engine compartment, behind headlight. See Figure . |
| Left Side Curtain Air Bag Module (B20) | At left "C" pillar. See Figure . |
| NAVI Control Unit (With NAVI) (B40 & B41) | In luggage compartment. See Figure . |
| Remote Keyless Entry Receiver | Behind left side of dash. See Figure . |
| Right Side Curtain Air Bag Module (B118) | At right "C" pillar. See Figure . |
| Shift Lock Control Unit | Behind upper left side of dash. See Figure . |
| TCM | Behind right side of dash. See Figure . |
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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