2002 Infiniti Q45FACTORY OEM SERVICE PROCEDURE

Synchronization Of Sliding/Tilt-Up Roof

Synchronization must be performed whenever desynchronization occurs (battery disconnected or control module replaced). Synchronization is necessary for convenience opening and closing of sliding/tilt-up roof.

To synchronize sliding/tilt-up roof, press sliding roof switch forward opening sliding/tilt-up roof to full tilt up position. After roof reaches full tilt-up position, maintain pressure on switch for 5 seconds. When DCM detects motor lock-up for specified period, position counter is reset to zero. Sliding/tilt-up roof is now synchronized, allowing sliding roof panel to stop before mechanical limit stop is reached.

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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