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PowerMaster Brake Relay

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:

PowerMaster Brake Relay

PURPOSE OF RELAY:

part of the Power Master brake motor assembly

TURNS ON-OFF / FUNCTIONS / USED WHEN:

part of the PM brake motor assembly, runs when brakes are activated

LOCATION IN VEHICLE:

located ON the PM unit, bottom, in front, at the pump motor

ORIGINAL GM PART NUMBER:

?

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:

brown “B” goes to (junction) to rlys fuse
(junction connects with low & high speed fan relays)

red “C”, goes to pwr brk fuse [which also connects to (junction) to coolant fan delay relay “B”]

black “A”, goes to (ground) to ground
(junction connects to brake accumulator pressure switch [“C” – located ON the PM unit])

white “D”, goes to brake accumulator pressure switch “A”

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OTHER NOTES:

[SEE Powermaster brake switch]

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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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