2002 Infiniti I35FACTORY OEM SERVICE PROCEDURE

System Description: Inputs

Power is supplied at all times

  • to smart entrance control unit terminal 49 and
  • to key switch terminal 3
  • through 10A fuse [No. 13, located in the fuse block (J/B)].

When the key switch is ON (ignition key is inserted in key cylinder), power is supplied

  • through key switch terminal 4
  • to smart entrance control unit terminal 25.

When the front door switch LH is ON (door is OPEN), ground is supplied

  • to smart entrance control unit terminal 1
  • through front door switch LH terminal 2
  • to front door switch LH terminal 3
  • through body grounds B7 and B12 (without rear sunshade) or B46 (with rear sunshade).

When the front door switch RH is ON (door is OPEN), ground is supplied

  • to smart entrance control unit terminal 2
  • through front door switch RH terminal 2 and
  • to front door switch RH terminal 3
  • through body grounds B127 and B106.

When the rear door switches are ON (door is OPEN), ground is supplied

  • to smart entrance control unit terminal 3
  • through rear door switches terminal 1
  • to rear door switches case grounds.

When door lock/unlock switch of front power window main switch is LOCK/UNLOCK, ground is supplied

  • to smart entrance control unit terminal 33
  • through front power window main switch terminals 8 and 5, and
  • through body grounds M9, M25 and M87.

Keyfob signal is inputted to smart entrance control unit (The antenna of the system is combined with smart entrance control unit).

The remote keyless entry system controls operation of the

  • power door lock
  • auto door lock
  • trunk lid opener
  • interior lamp
  • panic alarm
  • hazard and horn reminder
  • power window opener
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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