2002 Infiniti I35FACTORY OEM SERVICE PROCEDURE

Power Window Calibration

If battery is disconnected, power windows will require calibration to establish upper and lower stop points. Immediately after Central Control Unit (CCU) or battery is connected, CCU will energize down contacts on all window switches. To ensure calibration is successful; ensure that alarm is disarmed and vehicle is unlocked, that all doors and tailgate are in closed position, that sunroof is open to full hardback or softback position. DO NOT open any door until calibration procedure is completed. Turn ignition on, using appropriate window switch raise each window until motor stalls and window is fully closed. Turn ignition off. If calibration is not successful CCU will sound a warning for about .8 seconds and windows will fully lower. If calibration fails, repeat procedure.

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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