Home ReviewsRefund
Home/Lexus/GS/Lexus GS IV (2011-2015)/Repair manual/Cooling Fan/Engine Cooling Fan System (Diagnostics & Circuit Tests): Ov…
Contents Wiring diagrams Section: Cooling Fan All sections

Engine Cooling Fan System (Diagnostics & Circuit Tests): Overview Lexus GS IV

Cooling Fan 3 illustrations

Scheme 55

Scheme 55: ILLUSTRATION
Scheme 55: ILLUSTRATION

Scheme 56

Scheme 56: ILLUSTRATION
Scheme 56: ILLUSTRATION

Scheme 57

Scheme 57: SYSTEM DIAGRAM [03/2012 - ]
Scheme 57: SYSTEM DIAGRAM [03/2012 - ]

DESCRIPTION

The ECM calculates an appropriate cooling fan speed based on the engine coolant temperature, air conditioning switch condition, refrigerant pressure, engine speed and vehicle speed, and sends signals to the cooling fan ECU to regulate the cooling fan. The cooling fan ECU controls the cooling fan speed based on the duty ratio signal sent from the ECM.

More articles — Engine Cooling Fan System (Diagnostics & Circuit Tests)