What is the function and testing procedure for relays on Honda Pilot?

These cars have a number of electrical add-ons, such as fuel injection system, horns, starter and fog lamps, which are controlled by relays that ensure transmission of electric signals to the respective components. By allowing low-current control circuit to open and close high-current power circuit relays function. These relays can be found in the engine compartment fuse/relay box and near the fuse and relay boxes under the dashboard. There are usually three main types: normally-open type-A , normally-open type-B, and five-terminal type ones. The internal circuitry is similar on Type A and Type B relays while they differ in external spade terminal arrangement and numbering. Compared to Type A or Type B relays, five-terminal relays have different internal circuitry plus an added external spade terminal. To test a relay it must be removed from the vehicle and an ohmmeter used to check for continuity. Normally open Type A relays for instance which are used for various purposes such as air conditioning; horns; window lifters have four external spade terminals arranged in two rows. When you unplug them from power sources you should make sure there is no connection between terminals No1 &No2 on one hand but also that there is between terminal No 3 connected to power source via (terminal No 4) a ground wire respectively.The normally-open Type B ones similarly have four external parallel rows of spade terminals just like their counterparts above mentioned for example blower motors; rear defoggers . For these B-type testing is simple which requires breaking connection between contact points No1&No3 when current ceases to flow through them whereas creating path between contacts No1&No3 using their corresponding feeds wires from connectors No2&No4 which are connected with interfaced power line as well as grounded with earth respectively.A last category we will take care about here is five-terminal devices known for moonroof control ; high beam cut-off and others need us to examine continuity between point No 1 &No 4 without power supply whereas later on it should be established by joining terminal No. 3 to power and the ground respectively provided that connection has been completed at points No2&No5. These relay switches are normally discarded as they cannot be repaired.

Genuine Honda Pilot Relay

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24 Relays found

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Honda Pilot Relay Assembly, Power (Micro Iso) (Mitsuba)
Part Number: 39794-SDA-A05
$21.08 MSRP: $30.03
You Save: $8.95 (30%)
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Product Specifications
- Other Name: Horn Relay; Relay
- Replaces: 39794-SDA-A01, 39794-SDA-A04
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2009-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX (AWD), 5 Door EX 4.4 (4WD), 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-L (AWD), 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX (AWD), 5 Door LX 4.2 (4WD), 5 Door SE (2WD), 5 Door SE (4WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (4WD), 5 Door Touring (AWD) | KA 5AT, KA 6AT, KA 9AT
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Honda Pilot Relay Assembly, Engine Control Module (Denso)
Part Number: 39794-SDA-902
$50.08 MSRP: $71.34
You Save: $21.26 (30%)
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Product Specifications
- Other Name: Ecm Relay; Relay
- Replaces: 39794-SDA-901
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2023-2024 Honda Pilot | EX-L, Elite, Sport, Touring, TrailSport
- 2009-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX (AWD), 5 Door EX 4.4 (4WD), 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-L (AWD), 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX (AWD), 5 Door LX 4.2 (4WD), 5 Door SE (2WD), 5 Door SE (4WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (4WD), 5 Door Touring (AWD) | KA 5AT, KA 6AT, KA 9AT
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Honda Pilot Relay Assembly, Power (Micro Iso) (Denso)
Part Number: 39794-SDA-A02
$23.55 MSRP: $33.54
You Save: $9.99 (30%)
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Product Specifications
- Other Name: Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2016-2018 Honda Pilot | 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (AWD), 5 Door EX-L (2WD), 5 Door EX-L (AWD), 5 Door LX (AWD), 5 Door Touring (2WD), 5 Door Touring (AWD) | KA 6AT, KA 9AT
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Honda Pilot Relay Assembly, Power (Micro Iso) (Denso)
Part Number: 39794-T5A-J01
$29.23 MSRP: $41.63
You Save: $12.40 (30%)
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Product Specifications
- Other Name: Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2016-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (AWD), 5 Door EX-L (2WD), 5 Door EX-L (AWD), 5 Door LX (2WD), 5 Door LX (AWD), 5 Door SE (2WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (AWD) | KA 6AT, KA 9AT
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Honda Pilot Relay Assembly, Turn Signal And Hazard (Trico)
Part Number: 38300-S9V-A01
$62.32 MSRP: $90.32
You Save: $28.00 (31%)
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Product Specifications
- Other Name: Turn Signal & Hazard Flasher
- Replaced by: 38300-S9A-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2008 Honda Pilot | 5 Door EX, 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX-L, 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-SE (2WD), 5 Door EX-SE (4WD), 5 Door LX, 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD) | KA 5AT, KL 5AT
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Honda Pilot Relay Assembly, Power (4P) (Rc-2223) (Mitsuba)
Part Number: 39797-SM4-003
$58.13 MSRP: $82.10
You Save: $23.97 (30%)
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Product Specifications
- Other Name: Blower Motor Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2010 Honda Pilot | 5 Door EX, 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX-L, 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-SE (2WD), 5 Door EX-SE (4WD), 5 Door LX, 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD), 5 Door Touring (2WD), 5 Door Touring (4WD) | KA 5AT, KL 5AT
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Honda Pilot Relay Assembly, Power (Micro Iso) (Omron)
Part Number: 39794-SDA-A03
$21.26 MSRP: $30.03
You Save: $8.77 (30%)
ADD TO CART
Product Specifications
- Other Name: Blower Motor Relay; Fuel Pump Relay, Horn Relay, Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2005-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX, 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX (AWD), 5 Door EX 4.4 (4WD), 5 Door EX-L, 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-L (AWD), 5 Door EX-SE (2WD), 5 Door EX-SE (4WD), 5 Door LX, 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX (AWD), 5 Door LX 4.2 (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD), 5 Door SE (2WD), 5 Door SE (4WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (4WD), 5 Door Touring (AWD) | KA 5AT, KA 6AT, KA 9AT
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Honda Pilot Relay Assembly, Fuel Pump (Denso)
Part Number: 39794-SDA-004
$46.93 MSRP: $66.28
You Save: $19.35 (30%)
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Product Specifications
- Other Name: Fuel Pump Relay; Relay
- Replaces: 39794-SDA-003, 39794-SDA-305
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2009-2022 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX (AWD), 5 Door EX 4.4 (4WD), 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-L (AWD), 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX (AWD), 5 Door LX 4.2 (4WD), 5 Door SE (2WD), 5 Door SE (4WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (4WD), 5 Door Touring (AWD), Black Edition, EX-L, Elite, Special Edition, Sport, Touring, TrailSport | KA 5AT, KA 6AT, KA 9AT
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Honda Pilot Relay Assembly, Power (5P) (Micro Iso) (Mitsuba)
Part Number: 39794-S10-003
$36.76 MSRP: $51.92
You Save: $15.16 (30%)
ADD TO CART
Product Specifications
- Other Name: Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX, 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX (AWD), 5 Door EX 4.4 (4WD), 5 Door EX-L, 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-L (AWD), 5 Door EX-SE (2WD), 5 Door EX-SE (4WD), 5 Door LX, 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX (AWD), 5 Door LX 4.2 (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD), 5 Door SE (2WD), 5 Door SE (4WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (4WD), 5 Door Touring (AWD) | KA 5AT, KA 6AT, KA 9AT, KL 5AT
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Honda Pilot Relay Assembly, Main
Part Number: 39400-S84-003
$81.31 MSRP: $114.85
You Save: $33.54 (30%)
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Product Specifications
- Other Name: Main Relay; ECM Relay
- Replaces: 39400-S84-A01, 39400-S82-A01
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2004 Honda Pilot | 5 Door EX, 5 Door EX-L, 5 Door LX | KA 5AT, KL 5AT
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Honda Pilot Relay Assembly (Micro Iso)
Part Number: 39792-SDA-A01
$8.19 MSRP: $11.57
You Save: $3.38 (30%)
ADD TO CART
Product Specifications
- Other Name: Blower Motor Relay; Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2009-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX (AWD), 5 Door EX 4.4 (4WD), 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-L (AWD), 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX (AWD), 5 Door LX 4.2 (4WD), 5 Door SE (2WD), 5 Door SE (4WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (4WD), 5 Door Touring (AWD) | KA 5AT, KA 6AT, KA 9AT
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Honda Pilot Relay Assembly, Power (Micro Iso) (Omron)
Part Number: 39792-SJC-A01
$7.09 MSRP: $10.02
You Save: $2.93 (30%)
ADD TO CART
Product Specifications
- Other Name: Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2023-2024 Honda Pilot | EX-L, Elite, Sport, Touring, TrailSport
- 2009-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX (AWD), 5 Door EX 4.4 (4WD), 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-L (AWD), 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX (AWD), 5 Door LX 4.2 (4WD), 5 Door SE (2WD), 5 Door SE (4WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (4WD), 5 Door Touring (AWD) | KA 5AT, KA 6AT, KA 9AT
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Honda Pilot Relay Assembly, Fuel Pump (5P) (Mitsuba)
Part Number: 39794-S5A-003
$33.68 MSRP: $47.56
You Save: $13.88 (30%)
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Product Specifications
- Replaces: 39794-S5A-004
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2005-2008 Honda Pilot | 5 Door EX, 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX-L, 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-SE (2WD), 5 Door EX-SE (4WD), 5 Door LX, 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD) | KA 5AT
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Honda Pilot Relay Assembly, Engine Control Module (4P) (Mitsuba)
Part Number: 39794-S5A-901
$34.36 MSRP: $48.54
You Save: $14.18 (30%)
ADD TO CART
Product Specifications
- Replaces: 39794-S5A-902
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2006-2008 Honda Pilot | 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-SE (2WD), 5 Door EX-SE (4WD), 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD) | KA 5AT
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Honda Pilot Relay Assembly, Power (4P) (Rc-2201) (Mitsuba)
Part Number: 39795-SB2-003
$69.54 MSRP: $98.21
You Save: $28.67 (30%)
ADD TO CART
Product Specifications
- Other Name: Power Relay; Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2005 Honda Pilot | 5 Door EX, 5 Door EX-L, 5 Door LX | KA 5AT, KL 5AT
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Honda Pilot Relay Assembly, Power (4P No 305) (056700-9260) (Denso)
Part Number: 39792-SL4-003
$51.72 MSRP: $73.05
You Save: $21.33 (30%)
ADD TO CART
Product Specifications
- Other Name: Relay; Power Relay
- Replaces: 39792-SE0-004, 39792-SE0-003, 39792-SE4-A01, 39792-SM1-A01, 39792-SP0-004
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2008 Honda Pilot | 5 Door EX, 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX-L, 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-SE (2WD), 5 Door EX-SE (4WD), 5 Door LX, 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD) | KA 5AT, KL 5AT
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Honda Pilot Relay Assembly, Power (Micro Iso)
Part Number: 39794-TBA-A01
$3.72 MSRP: $5.24
You Save: $1.52 (30%)
ADD TO CART
Product Specifications
- Other Name: Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2023-2024 Honda Pilot | EX-L, Elite, Sport, Touring, TrailSport
- 2017-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (AWD), 5 Door EX-L (2WD), 5 Door EX-L (AWD), 5 Door LX (AWD), 5 Door SE (2WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (AWD) | KA 6AT, KA 9AT
View related parts
Honda Pilot Relay Assembly, Power (4P No.305) (Denso)
Part Number: 39792-SM4-013
$51.73 MSRP: $73.06
You Save: $21.33 (30%)
ADD TO CART
Product Specifications
- Other Name: Power Relay, Relay
- Replaces: 39792-SM4-003, 39792-SM4-004
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2008 Honda Pilot | 5 Door EX, 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX-L, 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door EX-SE (2WD), 5 Door EX-SE (4WD), 5 Door LX, 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD) | KA 5AT, KL 5AT
View related parts
Honda Pilot Relay Assembly, Power (4P) (Rc-2201) (Mitsuba)
Part Number: 39797-SE0-004
$57.53 MSRP: $81.25
You Save: $23.72 (30%)
ADD TO CART
Product Specifications
- Other Name: Relay Assembly; Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2003-2008 Honda Pilot | 5 Door EX, 5 Door EX (2WD), 5 Door EX (4WD), 5 Door EX-L, 5 Door EX-L (2WD), 5 Door EX-L (4WD), 5 Door LX, 5 Door LX (2WD), 5 Door LX (4WD), 5 Door LX-VP (2WD), 5 Door LX-VP (4WD) | KA 5AT, KL 5AT
View related parts
Honda Pilot Relay Assembly, Ignition (1) (Omron)
Part Number: 39794-TG7-A01
$5.22 MSRP: $7.37
You Save: $2.15 (30%)
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2016-2021 Honda Pilot | 5 Door Black (AWD), 5 Door ELITE (AWD), 5 Door EX (2WD), 5 Door EX (AWD), 5 Door EX-L (2WD), 5 Door EX-L (AWD), 5 Door LX (2WD), 5 Door LX (AWD), 5 Door SE (2WD), 5 Door SE (AWD), 5 Door Touring (2WD), 5 Door Touring (AWD) | KA 6AT, KA 9AT

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Honda Pilot Relay Parts Questions & Experts Answers

Relay Assembly, Power (4P No 305) (056700-9260) (Denso)
39792-SL4-003
Q: What is the function and testing procedure for relays on Honda Pilot?
A: These cars have a number of electrical add-ons, such as fuel injection system, Horns, starter and fog lamps, which are controlled by relays that ensure transmission of electric signals to the respective components. By allowing low-current control circuit to open and close high-current power circuit relays function. These relays can be found in the engine compartment fuse/relay box and near the fuse and relay boxes under the dashboard. There are usually three main types: normally-open type-A , normally-open type-B, and five-terminal type ones. The internal circuitry is similar on Type A and Type B relays while they differ in external spade terminal arrangement and numbering. Compared to Type A or Type B relays, five-terminal relays have different internal circuitry plus an added external spade terminal. To test a relay it must be removed from the vehicle and an ohmmeter used to check for continuity. Normally open Type A relays for instance which are used for various purposes such as air conditioning; horns; window lifters have four external spade terminals arranged in two rows. When you unplug them from power sources you should make sure there is no connection between terminals No1 &No2 on one hand but also that there is between terminal No 3 connected to power source via (terminal No 4) a ground wire respectively.The normally-open Type B ones similarly have four external parallel rows of spade terminals just like their counterparts above mentioned for example blower motors; rear defoggers . For these B-type testing is simple which requires breaking connection between contact points No1&No3 when current ceases to flow through them whereas creating path between contacts No1&No3 using their corresponding feeds wires from connectors No2&No4 which are connected with interfaced power line as well as grounded with earth respectively.A last category we will take care about here is five-terminal devices known for moonroof control ; high beam cut-off and others need us to examine continuity between point No 1 &No 4 without power supply whereas later on it should be established by joining terminal No. 3 to power and the ground respectively provided that connection has been completed at points No2&No5. These relay switches are normally discarded as they cannot be repaired.