What is the purpose of relays in a Subaru Impreza's electrical system?

There are several electrical accessories in the car including relays that relay electrical signal to the component like fuel injection system, horns, starter and fog lamps. Relays use control circuit (low-current circuit) to open and close power circuit (high-current circuit). If there is something wrong with such relay, the part will not work properly. Most of the relays are located in an engine compartment fuse and relay box. Besides, some relays may be found on or near a passenger's compartment fuse box but they are hidden behind knee bolster which can only be removed. Simply remove it if you suspect a faulty relay and test it using procedure below. Or have the dealer service department test it for you. They cannot repair defective relays; therefore; they must be replaced with new ones. The majority of these vehicles' relays are normally open type of relays. The relay coil connects two terminals which are also called as the control circuit for relay while other ones form its power circuit. When the relay is energized, it causes generation of magnetic field by a coil that would close its larger contacts through which power flows to loads located across circuits. In order to test a normally-open type of relay, turn off any source of power at terminal No 1 and then check if there is no continuity between terminal No 2 at this time using an ohmmeter device make sure that there is continuity between terminal No 1 when terminals No 3 & 4 connected with sources of power and ground respectively. Replace this particular one should it fail such examination as described above.

Genuine Subaru Impreza Relay

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61 Relays found

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Subaru Impreza Relay Assy
Part Number: 25230AA190
$13.74 MSRP: $19.92
You Save: $6.18 (32%)
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Product Specifications
- Other Name: Relay
- Manufacturer Note: ACVN51212 M01
- Replaces: 82501AG041, 82501AG040
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2016 Subaru Impreza | 2.5 GT, 2.5i, Base, Limited, Outback Sport, Premium, STI, STI Special Edition, STI Sport, Sport, Sport Limited, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Accessory Power Relay
Part Number: 82501AL000
$2.84 MSRP: $4.12
You Save: $1.28 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Horn Relay; Relay Assembly
- Manufacturer Note: ACVN51212
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2012-2021 Subaru Impreza | Base, Limited, Premium, Sport, Sport Limited
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Subaru Impreza Horn Relay
Part Number: 82501AG05B
$5.41 MSRP: $7.83
You Save: $2.42 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Fan Relay; Starter Relay, Window Relay, Relay Assembly
- Manufacturer Note: MITSUBA RC07-003
- Replaces: 82501AG05A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2017-2021 Subaru Impreza | Base, Limited, Premium, Sport
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Subaru Impreza Relay Assembly
Part Number: 82501AG041
$13.74 MSRP: $19.92
You Save: $6.18 (32%)
ADD TO CART
Product Specifications
- Other Name: Relay; Window Relay
- Manufacturer Note: ACV31212 MO4
- Replaced by: 25230AA190
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2011-2016 Subaru Impreza | 2.5i, Base, Limited, Outback Sport, Premium, Sport, Sport Limited, STI, STI Special Edition, STI Sport, WRX, WRX Sport | 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Relay Assembly
Part Number: 82501AG070
$19.76 MSRP: $28.63
You Save: $8.87 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Relay
- Manufacturer Note: ACV31212 M05
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2011 Subaru Impreza | 2.5 GT, 2.5i, Outback Sport, STI, STI Special Edition, STI Sport, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Relay
Part Number: 82501FC100
$9.22 MSRP: $13.37
You Save: $4.15 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Manufacturer Note: DENSO 156700-1020
- Replaced by: 82501AE03A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998-2016 Subaru Impreza | 2.5 GT, 2.5i, 25i, Base, Brighton, L, Limited, Outback, Outback Sport, Premium, RS, Sport, Sport Limited, STI, STI Limited, STI Special Edition, STI Sport, TS, WRX, WRX Sport, WRX TR, WRXSS | 2.0L H4 Turbo, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo
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Subaru Impreza Relay Assembly
Part Number: 82501TC000
$31.23 MSRP: $45.27
You Save: $14.04 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Relay; Daytime Running Light Relay
- Manufacturer Note: DENSO 156700-1700
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2021 Subaru Impreza | 2.5 GT, 2.5i, Base, Limited, Outback, Outback Sport, Premium, RS, Sport, Sport Limited, STI, STI Limited, STI Special Edition, STI Sport, TS, WRX, WRX Sport, WRXSS | 2.0L H4 Turbo, 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Breaker Power Window
Part Number: 85543AG000
$23.16 MSRP: $33.57
You Save: $10.41 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Breaker-Power Window
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2016 Subaru Impreza | 2.5 GT, 2.5i, Base, Limited, Outback Sport, Premium, Sport, Sport Limited, STI, STI Special Edition, STI Sport, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Relay
Part Number: 82501AA130
$23.87 MSRP: $34.60
You Save: $10.73 (32%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Window Relay
- Replaces: 82501AA000
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1994-2007 Subaru Impreza | 25i, Brighton, L, LX, Outback, Outback Sport, RS, STI, STI Limited, TS, WRX, WRX TR | 1.8L H4, 2.0L H4 Turbo, 2.2L H4, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo
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Subaru Impreza Air Pump Relay
Part Number: 25232AA090
$12.36 MSRP: $17.92
You Save: $5.56 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Fan Relay; Relay
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2006-2011 Subaru Impreza | 2.5 GT, STI, STI Limited, STI Special Edition, STI Sport, WRX, WRX Sport, WRX TR, WRXSS | 2.5L H4 Turbo
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Subaru Impreza Relay
Part Number: 82501GA240
$35.37 MSRP: $51.27
You Save: $15.90 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Relay Assembly; AC Relay
- Manufacturer Note: DENSO 056700-5260
- Replaces: 782501081
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1993-2006 Subaru Impreza | 25i, Base, Brighton, L, L+, LE, LS, LX, Outback, RS, STI, TS, WRX | 1.8L H4, 2.0L H4 Turbo, 2.2L H4, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo
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Subaru Impreza Relay Assembly
Part Number: 82501AG080
$13.85 MSRP: $20.07
You Save: $6.22 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Relay
- Manufacturer Note: DENSO 156700-2960
- Replaced by: 82501AG08A
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2016 Subaru Impreza | 2.5 GT, 2.5i, Base, Limited, Outback Sport, Premium, Sport, Sport Limited, STI, STI Special Edition, STI Sport, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Relay
Part Number: 82501FC000
$36.14 MSRP: $52.38
You Save: $16.24 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Daytime Running Light Relay, Horn Relay
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1998-2007 Subaru Impreza | 25i, Brighton, L, Outback, Outback Sport, RS, STI, STI Limited, TS, WRX, WRX TR | 2.0L H4 Turbo, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4, 2.5L H4 DOHC, 2.5L H4 SOHC, 2.5L H4 Turbo
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Subaru Impreza Relay Assembly
Part Number: 25232AA020
$36.04 MSRP: $52.23
You Save: $16.19 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay; Relay Assembly Relay
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 1993-2001 Subaru Impreza | Base, Brighton, L, L+, LE, LS, LX, Outback, RS, TS | 1.8L H4, 2.2L H4, 2.2L H4 (New EVAPO), 2.2L H4 Series, 2.5L H4 DOHC, 2.5L H4 SOHC
View related parts
Subaru Impreza Relay
Part Number: 82501AG040
$13.74 MSRP: $19.92
You Save: $6.18 (32%)
ADD TO CART
Product Specifications
- Manufacturer Note: ACV31212 MO4
- Replaced by: 25230AA190
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2012 Subaru Impreza | 2.5 GT, 2.5i, Base, Limited, Outback Sport, Premium, Sport, Sport Limited, STI, STI Special Edition, STI Sport, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
View related parts
Subaru Impreza Relay Assembly
Part Number: 82501AG08A
$13.85 MSRP: $20.07
You Save: $6.22 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay; Fan Relay, Horn Relay
- Manufacturer Note: DENSO
- Replaces: 82501AG080
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2021 Subaru Impreza | 2.5 GT, 2.5i, Base, Limited, Outback Sport, Premium, STI, STI Special Edition, STI Sport, Sport, Sport Limited, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
View related parts
Subaru Impreza Relay
Part Number: 25232AA130
$28.97 MSRP: $41.98
You Save: $13.01 (31%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Replaces: 25232AA110
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2017-2021 Subaru Impreza | Base, Limited, Premium, Sport
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Subaru Impreza Relay Bracket Assembly
Part Number: 25229AA050
$59.47 MSRP: $86.18
You Save: $26.71 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Relay & Bracket Assembly; Relay Assembly
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2002-2005 Subaru Impreza | Outback, RS, STI, TS, WRX | 2.0L H4 Turbo, 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Fuel Pump Relay
Part Number: 25232AA100
$31.23 MSRP: $45.27
You Save: $14.04 (32%)
Product Specifications
- Other Name: Horn Relay; Relay
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2008-2021 Subaru Impreza | 2.5 GT, 2.5i, Base, Limited, Outback Sport, Premium, Sport, Sport Limited, STI, STI Special Edition, STI Sport, WRX, WRX Sport, WRXSS | 2.5L H4, 2.5L H4 Turbo
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Subaru Impreza Relay Assembly 1T
Part Number: 82501AG120
$14.72 MSRP: $21.33
You Save: $6.61 (31%)
Product Specifications
- Other Name: Relay; Daytime Running Light Relay, Fan Relay, Horn Relay
- Manufacturer Note: MITSUBA RC-510O
- Warranty: This genuine part is guaranteed by Subaru's factory warranty.
Fits the following Vehicles:
- 2015-2021 Subaru Impreza | Base, Limited, Premium, Sport, Sport Limited

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Subaru Impreza Relay

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Subaru Impreza Relay Parts Questions & Experts Answers

Relay
82501FC220
Q: What is the purpose of relays in a Subaru Impreza's electrical system?
A:
There are several electrical accessories in the car including relays that relay electrical signal to the component like fuel injection system, Horns, starter and fog lamps. Relays use control circuit (low-current circuit) to open and close power circuit (high-current circuit). If there is something wrong with such relay, the part will not work properly. Most of the relays are located in an engine compartment fuse and relay box. Besides, some relays may be found on or near a passenger's compartment fuse box but they are hidden behind knee bolster which can only be removed. Simply remove it if you suspect a faulty relay and test it using procedure below. Or have the dealer service department test it for you. They cannot repair defective relays; therefore; they must be replaced with new ones. The majority of these vehicles' relays are normally open type of relays. The relay coil connects two terminals which are also called as the control circuit for relay while other ones form its power circuit. When the relay is energized, it causes generation of magnetic field by a coil that would close its larger contacts through which power flows to loads located across circuits. In order to test a normally-open type of relay, turn off any source of power at terminal No 1 and then check if there is no continuity between terminal No 2 at this time using an ohmmeter device make sure that there is continuity between terminal No 1 when terminals No 3 & 4 connected with sources of power and ground respectively. Replace this particular one should it fail such examination as described above.