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Home >> Nissan-Datsun >> 1995 >> 300ZX Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests 3.0L >> Miscellaneous Controls >> Radiator Cooling Fans
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Radiator Cooling Fans

The ECM controls radiator cooling fan(s) based on vehicle speed, engine coolant temp. and A/C switch position. The following tables list correct cooling fan operation based on certain conditions. See A/C SWITCH ON (TURBO)  , A/C SWITCH ON (NON-TURBO)  or A/C SWITCH OFF (TURBO & NON-TURBO)  tables. If cooling fan does not operate as specified, see RADIATOR (COOLING) FAN CONTROL TEST  .

A/C SWITCH ON (TURBO)

Engine Coolant Temp. °F (°C) Vehicle Speed MPH Radiator Fan
Less Than 192 (89) 24 Or Less Off
194-210 (90-99) 24 Or Less Low
More Than 212 (100) 24 Or Less High
Less Than 219 (104) 25 Or More Off
More Than 221 (105) 25 Or More On
A/C SWITCH ON (NON-TURBO)

Engine Coolant Temp. °F (°C) Vehicle Speed MPH Radiator Fan
Less Than 201 (94) 24 Or Less Off
More Than 203 (95) 24 Or Less On
Less Than 219 (104) 25 Or More Off
More Than 221 (105) 25 Or More On
A/C SWITCH OFF (TURBO & NON-TURBO)

Engine Coolant Temp. °F (°C) Radiator Fan
Less Than 219 (104) Off
More Than 221 (105) On