Cooling Fan Relay On-Vehicle Inspection

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fse Cooling. Lexus Gs430, Gs300. Uzs190 Grs190

  1. CHECK COOLING FAN RELAY (Marking: MAIN FAN)

Cooling Fan Relay -- On-Vehicle Inspection



1. CHECK COOLING FAN RELAY (Marking: MAIN FAN)


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Cooling.Cooling System.Cooling Fan Relay On-Vehicle Inspection

  1. Remove the relay from the engine room No. 1 relay block.

  1. Measure the resistance of the relay.

    Standard resistance:
    Tester Connection
    		Specified Condition
    3 - 5
    		10 MΩ or higher
    3 - 5
    		Below 1 Ω
    (when battery voltage is applied to terminals 1 and 2)
    If the result is not as specified, replace the cooling fan relay.

  1. Install the relay to the engine room No. 1 relay block.