Chevrolet Equinox Service Manual: Cooling Fan Description and Operation (LFX) Engine Cooling Radiator Fan
System Overview
The engine cooling fan system consists of2-electric cooling fans and 3-fan relays. Thecooling fan relays are arranged in a series/parallel (S/P)configuration. This allows the engine control module (ECM) tooperate both fans together at low or high speeds using2-fan control circuits. The cooling fans receivepositive voltage from the cooling fan relays, which receive batterypositive voltage from the underhood fuse block. The cooling fansare supplied a ground at G101.
Low Speed Operation
The ECM applies ground to the coil side of the cooling fanlow speed relay. This energizes the coil and applies voltagedirectly to the left cooling fan through the switch side of the lowspeed relay. The left cooling fan is connected in series to theright cooling fan through the de-energized series/parallel (S/P)cooling fan speed control relay. The result is a series circuitthat operates both fans at low speed.
High Speed Operation
The ECM applies a ground to the coil side of the cooling fanlow speed relay, the S/P cooling fan speed control relay, and thecooling fan high speed relay. When energized, the high speed fanrelay applies voltage directly to the right cooling fan through theswitch side of the relay. Simultaneously, the low speed fan relayand the S/P speed control relay provide ignition voltage and adirect path to ground for the left cooling fan. During high speedfan operation, both engine cooling fans have their own ground path.The result is a parallel circuit with both fans operating at highspeed.
#01-06-01-011H: Information on Engine Oil Consumption Guidelines - (Oct 29, 2013) Engine Lubrication
Subject:Information on Engine Oil Consumption GuidelinesModels: 2014 and Prior GM Cars and Gasoline-Powered Light Duty Trucks Under 8500-LB GVW This bulletin has been revised to add the 2013-2014 ...
Cooling Fan Description and Operation (LEA) Engine Cooling Radiator Fan
System OverviewThe engine cooling fan system is composed of one cooling fan, 2-relays, the enginecontrol module (ECM), and the associated wiring. The cooling fan assembly includes1-resistor mounted in ...
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Propeller Shaft Replacement Driveshafts Propeller Shaft Assembly
Removal ProcedurePlace the transmission in neutral-(N).Raise and support the vehicle. Refer toLifting and Jacking the Vehicle.Mark the relationship of the propeller shaft to the reardifferential drive flange and the transfer case.Support the propeller shaft at the rear differential.Remove the mounti ...
