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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSNISSAN-DATSUN1991240SX LE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSMISCELLANEOUS CONTROLSRADIATOR (COOLING) FAN CONTROL RELAY(S)
1991 Nissan-Datsun 240SX LE, Standard
Radiator (Cooling) Fan Control Relay(S)
1991 Nissan-Datsun 240SX LE, StandardSECTION Radiator (Cooling) Fan Control Relay(S)
See RELAYS . Also see appropriate table under RADIATOR COOLING FAN CONTROL RELAY OPERATION for relay(s) operation.
A/C SWITCH ON
| Engine Coolant Temp.°F (°C) | Vehicle Speed MPH | Radiator Fan |
|---|---|---|
| Less Than 212 (100) | 12 Or Less | Off |
| More Than 212 (100) | 24 Or Less | On |
| Less Than 212 (100) | 12-49 | Off |
| More Than 212 (100) | 12-49 | On |
| Less Than 212 (100) | 50 Or More | Off |
| More Than 212 (100) | 50 Or More | On |
RENDER: 1.0x
NO RELATED
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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.