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

Condenser Cooling Fan

NOTE: For condenser cooling fan relay testing, see RELAYSΒ  under RELAYS & SOLENOIDS.

The ECU controls condenser cooling fan based on vehicle speed, engine coolant temperature and A/C switch position. Compare cooling fan operation with operation specified in A/C SWITCH ON OR OFF table. If cooling fan does not operate as specified, see CONDENSER (COOLING) FAN CONTROLΒ  diagnostic chart.

A/C SWITCH ON OR OFF (240SX)

Engine Coolant Temp. Β°F (Β°C) Vehicle Speed MPH Radiator Fan
Less Than 212 (100) 11 Or Less (1)
" 12 Or More Off
212 (100) Or More N/A On
(1) Fan is off with A/C switch off. Fan is on with A/C switch on.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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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