Cooling Fan Relay Wiring Diagram For Lsx

Suggested electric fan wiring diagrams suggested primary cooling fan single speed on off using 12 volt switching devices only for primary activation note.

Cooling fan relay wiring diagram for lsx. How ecm controls cooling fans describes the relationship between the ecm and the fan control module. I have had a lot of people ask me about gm radiator cooling fan diagnosis in the past. Since my engine is not stock 1971 riviera 455 cubic inch big block the cooling fan previously that was installed is just not enough to cool it down. The cooling fan relay is normally located in either the underhood fuse and relay center or mounted to the electric fan assembly behind the radiator.

It basically runs two fans in series for low speed and then put s each on it s own 12v circuit for high speed. Most stand alone adjustable thermostats i e. Kits are professionally constructed from brand new gm delphi connectors and txl polyethylene cross linked high temperature wire to gm specifications. So we have bought a ford taurus 2 speed fan this fan had rumored to cool down the biggest and some of the toughest blocks around.

When installing an auxiliary fan or simply wiring the factory fan so that the driver can manually turn the fan on and off make sure the fan is turning in the right direction. When the cooling fan relay gets its signal from the ecm the wiring diagram will typically resemble the following illustration. Air conditioning considerations prior to buying a custom wire harness or doing pcm calibration work determine if the vehicle will have air conditioning if electric fan s are required when the a c compressor is on and if the pcm will be used to control the electric fan s. Relay is high quality sealed dephi component.

Cooling fan relay wiring fuse holder terminals notes. Third it must be pin mapped to an available j1 connector output pin. Hayden flex a lite or perma cool brands can provide a 12 volt output when activated. So today we are going to do the wiring part of the fan.

Second enter inputs outputs also in system parameters and select the output type for electric fan s. A relay kit our part number ccfkrl will include everything you need to properly wire up your electric cooling fans with the exception of additional wiring needed to complete all of the circuits. The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan. 1 first enable the electric fan s in basic i o system parameters.

Click view outputs on the pin map. I prefer it to be a ground output however it can be programmed to be either one 12v or ground.