What is the general information about relays and how to test them on Lexus RX350?

In the vehicle, various electrical accessories for example the fuel injection system, horn, starter, and fog lamps all employ relays to switch the electric signal to the component. It is a switch that applies a low current control circuit to turn on or off a high current power circuit. A faulty relay which is used in the manufacture of this component will not enable the desired functioning. Most of the relays are usually fixed on the engine compartment fuse/relay box while the special relays are fixed on the underhood box at right fender side and the relays of the ABS are usually fixed on the underhood relay box at the left side of the radiator. If a faulty relay is believed to be present, it can be replaced and some place checked while other specify can be checked by a dealer service department or a repair shop. Where relays are of the type that must be replaced as a unit because they are out of tolerance, the circuit controlled by that relay is often noted on the top of the relay or on a decal or imprint on the inside cover of the relay box. The four fundamental types available are the NO and the NC forms, with some types of relays providing a single or double circuit when activated. Many relays have two or more pins for the control circuit which is connected to the relay coil and other pins for the power circuit all of which are internally connected when the control circuit is energized. It's possible for some of the relays to be painted to distinguish between the control and power circuit terminals; the unmarked types can be tested using a switch across the power circuit terminals with an Ohmmeter to check for continuity. A normal four-terminal normally open relay needs an ohmmeter to show continuity when the relay is energized and no continuity when it is not energized. Connect one end of a fused jumper wire connecting one terminal of the control circuit to the positive terminal of the battery and the other end of the fused jumper wire to the other terminal of the control circuit to the ground and the relay should click and continuity should be indicated on the meter. If the relay is found wanting in the test it subjects to, it was supposed to be replaced.

Genuine Lexus RX350 Relay

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36 Relays found

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Lexus RX350 Fog Light Relay - Service Part
Part Number: 90080-87026
$24.11 MSRP: $31.09
You Save: $6.98 (23%)
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Product Specifications
- Other Name: Relay Assy, Circuit Opening (For EFI); Fuel Pump Relay, Horn Relay, Relay
- Replaces: 90080-87010, 90987-02027
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2025 Lexus RX350 | STD | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS, 3MZFE, A25AFXS, AALH15L-CWXGBA, AALH16L-AWXGBA, GGL10L-AWTGKA, GGL10L-CWTGKA, GGL15L-AWTGKA, GGL15L-CWTGKA, GGL15L-CWZGKA, GGL20L-CWZGBA, GGL25L-AWZGBA, GGL25L-BWZGBA, GGL25L-CWZGBA, GSU30L-AWAGKA, GSU30L-CWAGKA, GSU35L-AWAGKA, GSU35L-CWAGKA, GYL10L-AWXGKA, GYL10L-CWXGKA, GYL15L-AWXGKA, GYL15L-CWXGKA, GYL20L-CWXGBA, GYL25L-AWXGBA, GYL25L-CWXGBA, MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA, T24AFTS; AALH15L-AWXGBA, T24AFTS; AALH15L-CWXGBA, TALA10L-AWZGTA, TALA10L-CWZGTA, TALA15L-CWZGTA, TALH17L-AWTGTA, TALH17L-CWTGTA
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Lexus RX350 Relay
Part Number: 90987-02025
$69.74 MSRP: $92.79
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Product Specifications
- Other Name: Relay, Cooling Fan
- Replaced by: 90080-87024
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2025 Lexus RX350 | STD | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS, 3MZFE, A25AFXS, T24AFTS; AALH15L-AWXGBA, AALH16L-AWXGBA, GGL10L-AWTGKA, GGL10L-CWTGKA, GGL15L-AWTGKA, GGL15L-CWTGKA, GGL20L-CWZGBA, GGL25L-AWZGBA, GGL25L-BWZGBA, GGL25L-CWZGBA, GSU30L-AWAGKA, GSU35L-AWAGKA, GYL10L-AWXGKA, GYL15L-AWXGKA, GYL20L-CWXGBA, GYL25L-AWXGBA, GYL25L-CWXGBA, MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA, TALA10L-AWZGTA, TALA10L-CWZGTA, TALA15L-CWZGTA, TALH17L-AWTGTA, TALH17L-CWTGTA
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Lexus RX350 Relay
Part Number: 90987-02027
$24.30 MSRP: $31.09
You Save: $6.79 (22%)
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Product Specifications
- Other Name: Relay, Front Wiper Deicer
- Replaced by: 90080-87026
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2025 Lexus RX350 | STD | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS, 3MZFE, A25AFXS, T24AFTS; AALH15L-AWXGBA, AALH15L-CWXGBA, AALH16L-AWXGBA, GGL10L-AWTGKA, GGL15L-AWTGKA, GGL25L-AWZGBA, GGL25L-BWZGBA, GSU30L-AWAGKA, GSU35L-AWAGKA, GYL10L-AWXGKA, GYL10L-CWXGKA, GYL15L-AWXGKA, GYL15L-CWXGKA, GYL20L-CWXGBA, GYL25L-AWXGBA, GYL25L-CWXGBA, MCU33L-AWAGKA, MCU38L-AWAGKA, TALA10L-AWZGTA, TALA10L-CWZGTA, TALA15L-CWZGTA, TALH17L-AWTGTA, TALH17L-CWTGTA
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Lexus RX350 Relay
Part Number: 90987-02028
$82.89 MSRP: $112.09
You Save: $29.20 (27%)
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Product Specifications
- Other Name: Relay, Magnet-Clutch
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2010-2015 Lexus RX350 | STD | 6 Cyl 3.5L | 2GRFE, 2GRFXE; GGL10L-AWTGKA, GGL10L-CWTGKA, GGL15L-AWTGKA, GGL15L-CWTGKA, GGL15L-CWZGKA, GYL10L-AWXGKA, GYL10L-CWXGKA, GYL15L-AWXGKA, GYL15L-CWXGKA
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Lexus RX350 Relay, Skid Control
Part Number: 88263-21010
$71.45 MSRP: $96.62
You Save: $25.17 (27%)
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Product Specifications
- Other Name: Relay
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2010-2022 Lexus RX350 | STD | 6 Cyl 3.5L | 2GRFXE, 2GRFXS; GYL10L-AWXGKA, GYL10L-CWXGKA, GYL15L-AWXGKA, GYL15L-CWXGKA, GYL20L-CWXGBA, GYL25L-AWXGBA, GYL25L-CWXGBA
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Lexus RX350 Flasher Assy, Turn Signal
Part Number: 81980-06020
$67.02 MSRP: $90.64
You Save: $23.62 (27%)
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Product Specifications
- Other Name: Flasher, Flasher Relay, Turn Signal Flasher
- Replaces: 81980-30170
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2010-2015 Lexus RX350 | STD | 6 Cyl 3.5L | 2GRFE, 2GRFXE; GGL10L-AWTGKA, 2GRFXE; GGL10L-CWTGKA, GGL15L-AWTGKA, GGL15L-CWTGKA, GGL15L-CWZGKA, GYL10L-AWXGKA, GYL10L-CWXGKA, GYL15L-AWXGKA, GYL15L-CWXGKA
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Lexus RX350 Relay
Part Number: 90987-04004
$61.35 MSRP: $78.50
You Save: $17.15 (22%)
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Product Specifications
- Other Name: Relay, Cooling Fan, NO.2
- Replaced by: 90084-98032
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2023-2025 Lexus RX350 | 4 Cyl 2.4L, 4 Cyl 2.5L | A25AFXS, AALH16L-AWXGBA, T24AFTS; AALH15L-AWXGBA, TALA10L-AWZGTA, TALH17L-AWTGTA
- 2007-2015 Lexus RX350 | STD | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 2GRFXE, 3MZFE; GGL10L-AWTGKA, GGL15L-AWTGKA, GSU30L-AWAGKA, GSU35L-AWAGKA, GYL10L-AWXGKA, GYL15L-AWXGKA, MCU33L-AWAGKA, MCU38L-AWAGKA
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Lexus RX350 Relay Assy, Starter
Part Number: 28300-28010
$76.49 MSRP: $101.78
You Save: $25.29 (25%)
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Product Specifications
- Replaced by: 28300-21020
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2015 Lexus RX350 | STD | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 3MZFE; GGL10L-AWTGKA, GGL15L-AWTGKA, GSU30L-AWAGKA, GSU35L-AWAGKA, MCU33L-AWAGKA, MCU38L-AWAGKA
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Lexus RX350 Relay, Towing CONVER
Part Number: 81985-WY010
$58.88 MSRP: $75.33
You Save: $16.45 (22%)
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Product Specifications
- Other Name: Relay, Towing Converter
- Manufacturer Note: TOWING PACKAGE-3500LBS(W/T.CONVERTER)
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2010-2015 Lexus RX350 | STD | 6 Cyl 3.5L | 2GRFE, 2GRFXE; GGL10L-AWTGKA, GGL15L-AWTGKA, GYL15L-AWXGKA
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Lexus RX350 Relay Assy, Starter
Part Number: 28300-21020
$75.26 MSRP: $101.78
You Save: $26.52 (27%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Relay
- Replaces: 28300-28010
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2025 Lexus RX350 | STD | 4 Cyl 2.4L, 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 2GRFKS, 3MZFE; GGL10L-AWTGKA, GGL15L-AWTGKA, GGL25L-AWZGBA, GGL25L-BWZGBA, GSU30L-AWAGKA, GSU35L-AWAGKA, MCU33L-AWAGKA, MCU38L-AWAGKA, T24AFTS; GGL10L-AWTGKA, TALA10L-AWZGTA
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Lexus RX350 Relay
Part Number: 90084-98032
$58.99 MSRP: $78.50
You Save: $19.51 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Relay Assy, Fuel Pump; Fan Relay
- Manufacturer Note: CRUISE CONTROL-RADAR CRUISE,DENSO
- Replaces: 90987-04004, 90080-87014
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2023-2025 Lexus RX350 | 4 Cyl 2.4L, 4 Cyl 2.5L | A25AFXS, AALH16L-AWXGBA, T24AFTS; AALH15L-AWXGBA, T24AFTS; AALH15L-CWXGBA, TALA10L-AWZGTA, TALA10L-CWZGTA, TALA15L-CWZGTA, TALH17L-AWTGTA, TALH17L-CWTGTA
- 2007-2015 Lexus RX350 | STD | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 2GRFXE, 2GRFXE; GGL10L-CWTGKA, 3MZFE; GGL10L-AWTGKA, 3MZFE; GSU30L-CWAGKA, GGL15L-AWTGKA, GGL15L-CWTGKA, GGL15L-CWZGKA, GSU30L-AWAGKA, GSU30L-CWAGKA, GSU35L-AWAGKA, GSU35L-CWAGKA, GYL10L-AWXGKA, GYL10L-CWXGKA, GYL15L-AWXGKA, GYL15L-CWXGKA, MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA
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Lexus RX350 Relay
Part Number: 90987-04002
$28.39 MSRP: $36.33
You Save: $7.94 (22%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Relay Assy (For Heater Blower Motor)
- Replaced by: 90987-04002-83
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007 Lexus RX350 | STD | 6 Cyl 3.3L | 3MZFE; MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA
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Lexus RX350 Relay Assy, Windshield Wiper
Part Number: 85940-48030
$339.47 MSRP: $470.55
You Save: $131.08 (28%)
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Product Specifications
- Other Name: Relay, Wiper Relay
- Replaces: 85940-48020
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2009 Lexus RX350 | STD | 6 Cyl 3.5L | 2GRFE; GSU30L-AWAGKA, GSU30L-CWAGKA, GSU35L-AWAGKA, GSU35L-CWAGKA
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Lexus RX350 Relay
Part Number: 90080-87024
$68.62 MSRP: $92.79
You Save: $24.17 (27%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Relay, Cooling Fan; Control Relay, Fan Relay
- Replaces: 90987-02016, 90987-02025
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2025 Lexus RX350 | STD | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 2GRFKS, 2GRFXE, 2GRFXS, 3MZFE, A25AFXS, AALH16L-AWXGBA, GGL10L-AWTGKA, GGL10L-CWTGKA, GGL15L-AWTGKA, GGL15L-CWTGKA, GGL15L-CWZGKA, GGL20L-CWZGBA, GGL25L-AWZGBA, GGL25L-BWZGBA, GGL25L-CWZGBA, GSU30L-AWAGKA, GSU30L-CWAGKA, GSU35L-AWAGKA, GSU35L-CWAGKA, GYL10L-AWXGKA, GYL10L-CWXGKA, GYL15L-AWXGKA, GYL15L-CWXGKA, GYL20L-CWXGBA, GYL25L-AWXGBA, GYL25L-CWXGBA, MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA, T24AFTS; AALH15L-AWXGBA, T24AFTS; AALH15L-CWXGBA, TALA10L-AWZGTA, TALA10L-CWZGTA, TALA15L-CWZGTA, TALH17L-AWTGTA, TALH17L-CWTGTA
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Lexus RX350 Relay
Part Number: 90987-02009
$48.86 MSRP: $65.02
You Save: $16.16 (25%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Relay Assy, Cooler
- Replaces: 90987-02010
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2013 Lexus RX350 | STD | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 3MZFE; GGL10L-AWTGKA, 3MZFE; MCU33L-CWAGKA, GGL10L-CWTGKA, GGL15L-AWTGKA, GGL15L-CWTGKA, GSU30L-AWAGKA, GSU30L-CWAGKA, GSU35L-AWAGKA, GSU35L-CWAGKA, MCU33L-AWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA
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Lexus RX350 Relay
Part Number: 90987-04010
$69.64 MSRP: $92.66
You Save: $23.02 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Relay, Defogger
- Replaced by: 90080-87025
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2015 Lexus RX350 | STD | 6 Cyl 3.5L | 2GRFE, 2GRFXE; GGL10L-AWTGKA, GGL15L-AWTGKA, GSU30L-AWAGKA, GSU35L-AWAGKA, GYL10L-AWXGKA, GYL15L-AWXGKA
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Lexus RX350 Relay
Part Number: 90987-02031
$21.08 MSRP: $27.18
You Save: $6.10 (23%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2023-2025 Lexus RX350 | 4 Cyl 2.5L | A25AFXS; AALH16L-AWXGBA
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Lexus RX350 Relay
Part Number: 90987-02033
$49.36 MSRP: $65.68
You Save: $16.32 (25%)
Ships in 1-3 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2023-2025 Lexus RX350 | 4 Cyl 2.4L, 4 Cyl 2.5L | A25AFXS, T24AFTS; AALH15L-AWXGBA, AALH15L-CWXGBA, AALH16L-AWXGBA, TALH17L-AWTGTA, TALH17L-CWTGTA
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Lexus RX350 Flasher Assy, Turn Signal
Part Number: 81980-30170
$68.11 MSRP: $90.64
You Save: $22.53 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Replaced by: 81980-06020
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2010-2015 Lexus RX350 | STD | 6 Cyl 3.5L | 2GRFE, 2GRFXE; GGL10L-AWTGKA, GGL15L-AWTGKA, GYL10L-AWXGKA, GYL15L-AWXGKA
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Lexus RX350 Relay, Headlamp Cleaner Control
Part Number: 85942-48010
$329.75 MSRP: $457.07
You Save: $127.32 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Relay
- Warranty: This genuine part is guaranteed by Lexus's factory warranty.
Fits the following Vehicles:
- 2007-2009 Lexus RX350 | STD | 6 Cyl 3.3L, 6 Cyl 3.5L | 2GRFE, 3MZFE; GSU30L-AWAGKA, GSU30L-CWAGKA, GSU35L-AWAGKA, GSU35L-CWAGKA, MCU33L-AWAGKA, MCU33L-CWAGKA, MCU38L-AWAGKA, MCU38L-CWAGKA

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Lexus RX350 Relay

The Lexus RX350 uses a Relay as a vital component of its A/C system where this electrically controlled device operates switch functions to regulate different circuit operations. Through accurate signal transmission the Relay enables superior climate control operation. Regular variants of Relay comprising electromechanical and solid-state devices have dominated the market throughout history with distinct operational methods each. Electromechanical Relay operate with electromagnets to control contacts as solid-state Relay use semiconductor properties to deliver improved reliability through an absence of physical components. Faulty Lexus Relay often result in severe performance degradation of the A/C system because they interrupt vital components such as fan or blower motor operation. Failure prevention in the system requires immediate replacement of worn RX350 replacement units to stop secondary breakdowns from occurring. A correct identification of Lexus RX350 replacement part problems remains critical in order to properly fix expensive system elements and achieve both efficient and effective maintenance operations.

Should you need to purchase new auto parts for your vehicle, we strongly suggest you consider the genuine Lexus RX350 Relay available on LexusPartsNow.com. Our OEM Lexus RX350 Relay come with the reassurance of the manufacturer's warranty, a hassle-free return policy, and speedy delivery service, all at affordable prices online. Feel free to shop with confidence!

Lexus RX350 Relay Parts Questions & Experts Answers

Relay, Cleaner Control
85942-58010
Q: What is the general information about relays and how to test them on Lexus RX350?
A:
In the vehicle, various electrical accessories for example the fuel injection system, horn, starter, and fog lamps all employ relays to switch the electric signal to the component. It is a switch that applies a low current control circuit to turn on or off a high current power circuit. A faulty relay which is used in the manufacture of this component will not enable the desired functioning. Most of the relays are usually fixed on the engine compartment fuse/relay box while the special relays are fixed on the underhood box at right fender side and the relays of the ABS are usually fixed on the underhood relay box at the left side of the radiator. If a faulty relay is believed to be present, it can be replaced and some place checked while other specify can be checked by a dealer service department or a repair shop. Where relays are of the type that must be replaced as a unit because they are out of tolerance, the circuit controlled by that relay is often noted on the top of the relay or on a decal or imprint on the inside cover of the relay box. The four fundamental types available are the NO and the NC forms, with some types of relays providing a single or double circuit when activated. Many relays have two or more pins for the control circuit which is connected to the relay coil and other pins for the power circuit all of which are internally connected when the control circuit is energized. It's possible for some of the relays to be painted to distinguish between the control and power circuit terminals; the unmarked types can be tested using a switch across the power circuit terminals with an Ohmmeter to check for continuity. A normal four-terminal normally open relay needs an ohmmeter to show continuity when the relay is energized and no continuity when it is not energized. Connect one end of a fused jumper wire connecting one terminal of the control circuit to the positive terminal of the battery and the other end of the fused jumper wire to the other terminal of the control circuit to the ground and the relay should click and continuity should be indicated on the meter. If the relay is found wanting in the test it subjects to, it was supposed to be replaced.