This category on the website [ Relays and Wiring ] we are giving you all of the information related to the individual relays in the Buick Turbo Regal, along with the associated wiring, connector plugs, etc.
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VEHICLE APPLICATION:
Buick Regal, T-Type, Turbo T, Limited, Grand National, GNX
RELAY NAME:
High Speed Fan Relay
PURPOSE OF RELAY:
turns the fans on
TURNS ON-OFF / FUNCTIONS / USED WHEN:
The (single wire) coolant sensor/switch (on manifold, top side, drivers side, below throttle linkage) triggers the high speed relay, when the water temp reaches about 230 degrees.
The high speed fan turns on when the A/C is selected also.
LOCATION IN VEHICLE:
drivers side fender, first relay towards front of car
ORIGINAL GM PART NUMBER:
25526984
RELAY / BASE COLOR:
black
CONNECTOR PLUG COLOR (RELAY SIDE):
black
WIRES ATTACHED (RELAY SIDE):
n/a
CONNECTOR PLUG COLOR (HARNESS SIDE):
black
NUMBER OF WIRES ATTACHED (HARNESS SIDE):
4
COLOR & PURPOSE OF (HARNESS SIDE) WIRES:
red “1”, goes to low speed coolant fan relay “1” (which then connects on a second red wire to fusible link “E”)
dark green-yellow “2”, goes to (junction) to coolant fan temp switch
(junction connects with a/c high pressure switch “B” [a/c only] )
black-pink “4”, goes to coolant fan delay relay “B” (which then connects on a second black-pink wire to coolant fan “B”)
brown “5”, goes to (junction) to rlys fuse
(junction connects with low speed fan relay, PM brake relay)
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OTHER NOTES:
labelled “Hi Speed Coolant Fan Relay” on diagrams.
low & high fan relays are the same relay.
[SEE low speed fan relay]
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PHOTOS OF RELAY AND CONNECTED WIRES:
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Here’s a list of all of the relays in the Buick Regal:
(click the links to go to the one you need info about)
* Air Conditioning Compressor Cutout Relay (A/C Cut-out)
* Blower Relay (hvac fan blower motor)
* Coolant Fan Delay Relay
* Door Lock Relay
* Fuel Injector Relay (aftermarket)
* Fuel Pump Relay (factory)
* Fuel Pump Hot Wire Relay (aftermarket)
* High Speed Coolant Fan Relay
* Horn Relay
* Ignition Module Relay (aftermarket, hot wire kit for coil pack)
* Low Speed Coolant Fan Relay
* Power Antenna Relay
* Power Master Brake Relay
* Starter Interrupt Relay (part of Theft Deterrent system)
* Theft Deterrent Relay
* Twilight Sentinel Module Switch Relay
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