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.
2002 Nissan-Datsun Sentra SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE
Erasure Of Transponder Key Code
NOTE:
Procedure is used to erase all key codes from transponder key Electronic Control Unit (ECU). All other master and sub-key codes are deleted leaving the master key code which was used when performing the operation. When using the ignition key which was used before deleting, it is necessary to register the code again.
- Ensure all doors are closed and there is no ignition key in ignition lock cylinder. Insert registered master key into ignition lock cylinder. Within 15 seconds of inserting master key into ignition lock cylinder, repeatedly turn ignition switch to from LOCK to ON position 6 times, and then open and close the driver's door 7 times. Driver's door must be opened and closed within 15 seconds after inserting master key into ignition lock cylinder.
- Within 20 seconds of opening and closing the driver's door 7 times, remove master key from ignition lock cylinder. Master key must be removed from ignition lock cylinder within 20 seconds after the first opening and closing of the driver's door.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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