1992 Nissan-Datsun 240SX SE, 2D ConvertibleFACTORY OEM SERVICE PROCEDURE

Final Steps For All Code Charts

Unless otherwise instructed in code chart, perform following steps after repair:

  • Reinstall any part removed.
  • Erase self-diagnostic memory. See CLEARING CODES under SELF-DIAGNOSTIC SYSTEM.
  • Ensure Code 55 (no malfunction) is displayed in self-diagnostic mode.
  • Test drive vehicle.
  • Perform self-diagnostics.

If code resets, check for damage to ECU pin terminals and connector harness.

Fig 1: Identifying Trouble Code Chart Symbols
G90E19731Courtesy of NISSAN MOTOR CO., U.S.A.
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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