Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Condenser Cooling Fan (240SX): Notes
The ECM 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 (240SX) table. If cooling fan does not operate as specified, see CONDENSER (COOLING) FAN CONTROL TEST.
| Engine Coolant Temp. °F (°C) | Vehicle Speed MPH | Radiator Fan | ||
|---|---|---|---|---|
| Less Than 212 (100) | 12 Or Less | (1) | ||
| Greater Than 212 (100) | 12 Or Less | On | ||
| Less Than 212 (100) | 12-49 | Off | ||
| Greater Than 212 (100) | 12-49 | On | ||
| Less Than 212 (100) | 50 Or More | Off | ||
| Greater Than 212 (100) | 50 Or More | On | ||
|
||||
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.