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.
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HOMESERVICE MANUALSNISSAN-DATSUN2009SENTRA L4-2.0L (MR20DE)REPAIR AND DIAGNOSISBODY AND FRAMEBODY CONTROL SYSTEMSBODY CONTROL MODULESERVICE AND REPAIR
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)
Body Control Module: Service and Repair
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)SECTION Service and Repair
BCM (BODY CONTROL MODULE)
Removal and Installation of BCM
REMOVAL
CAUTION:
Before replacing BCM, perform "READ CONFIGURATION" to save or print current vehicle specifications. Refer to Testing and Inspection.
1. Disconnect the battery negative terminal.
2. Remove the instrument lower finisher. Refer to Component Parts.
3. Remove the front foot duct (LH). Refer to Service and Repair.
4. Remove the BCM screw (A), disconnect the connectors and remove the BCM (1).
- Arrow Indicates Front
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
- When replacing BCM, perform "WRITE CONFIGURATION". Refer to Testing and Inspection.
- When replacing BCM, perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to Key Switch (Intelligent Key Unit Input) Check.
- When replacing BCM, if new BCM does not come with keyfobs attached, all existing keyfobs must be re-registered. Refer to CONSULT-III operation manual for the initialization procedure.
RENDER: 1.0x
NO RELATED
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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.