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.
2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE
Transfer Control Device
WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
The transfer control device changes the state of transfer assembly between 2WD, AUTO, 4H<=>4LO with the 2WD, AUTO, 4H and 4LO signals of 4WD shift switch.
NOTE:
- To shift between 4H<=>4LO, stop the vehicle, depress the brake pedal and shift the transmission selector to the "N" position. Depress and turn the 4WD shift switch. The shift switch will not shift to the desired mode if the transmission is not in "N" or the vehicle is moving. The 4LO indicator lamp will be lit when the 4LO is engaged.
- Actuator motor and actuator position switch are integrated.
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.