How tonstall a relay between the battery and load help reduce voltage drop and How to test, remove, and install it on Honda CRX?

Location of battery/load may be such that a switch has to be positioned at a distance from the two, defeating the purpose of a low voltage drop by having a long wire. 'This eliminates this voltage drop when a relay is placed between the battery and load and since the switch controls the relay, it passes a reduced amount of amperage'. To check the system and diagnostic the problem first remove the negative battery terminal, then measure the resistance between terminals 3 and 4 or A to B. After that apply +12v across terminals 1 and 2, check for the resistance that is available between terminals 3 and 4 or A to a. If the resistance is not in the specified range or the multimeter shows '-' then the relay has to be replaced. One has to remove the negative battery terminal, find the relay, and then unplug the wire connector if it is for removal. If this is required then undo the attaching bolt and take out the relay and the process of installation will be vice versa of the above mentioned.

Genuine Honda CRX Relay

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15 Relays found

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Honda CRX Relay Assembly, Turn Signal And Hazard (Mitsuba)
Part Number: 38300-S9A-003
$82.95 MSRP: $117.17
You Save: $34.22 (30%)
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Product Specifications
- Other Name: Turn Signal Flasher
- Replaces: 38300-SE3-013, 38300-S5T-004, 38300-S9V-A01, 38300-SV1-A01, 38300-SA5-671, 38300-S5A-003, 38300-S5T-003, 38300-SE3-003, 38300-S9V-A11, 38300-SA5-004, 38300-SB2-672, 38300-SE3-004, 38300-SV1-A00, 38300-S47-013, 38300-SA5-672, 38300-SV1-A11, 38300-SA5-013, 38300-SA5-003, 38300-SB2-671
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1984-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 3AT, KA 4AT, KA 5MT, KH 5MT, KL 3AT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Power (4P) (Rc-2226) (Brown) (Mitsuba)
Part Number: 39794-SL0-J01
$94.01 MSRP: $132.79
You Save: $38.78 (30%)
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Product Specifications
- Other Name: Relay
- Replaces: 39794-SE0-004, 39794-SL0-004, 39794-SE0-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 4AT, KA 5MT, KH 5MT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Power (4P) (056700-7250) (Denso)
Part Number: 39794-SE0-003
$94.01 MSRP: $132.79
You Save: $38.78 (30%)
ADD TO CART
Product Specifications
- Replaced by: 39794-SL0-J01
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 4AT, KA 5MT, KH 5MT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Main (Rz-0063) (Pgm-Fi) (Mitsuba)
Part Number: 39400-SH3-003
$136.04 MSRP: $193.78
You Save: $57.74 (30%)
ADD TO CART
Product Specifications
- Other Name: Main Relay
- Replaces: 39400-SK7-003, 39400-SD4-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 4AT, KA 5MT, KH 5MT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Power (4P) (056700-7330) (Denso)
Part Number: 39797-SE0-003
$81.93 MSRP: $115.72
You Save: $33.79 (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:
- 1986-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 4AT, KA 5MT, KH 5MT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Main (Rz-0017) (Mitsuba)
Part Number: 39400-SA7-931
$35.21 MSRP: $72.90
You Save: $37.69 (52%)
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Product Specifications
- Replaces: 39400-SD7-931
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1985 Honda CRX | 2 Door SI | KA 5MT, KL 5MT
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Honda CRX Relay Assembly, Turn Signal And Hazard (Front-3309) (Mitsuba)
Part Number: 38300-SE3-013
$82.95 MSRP: $117.17
You Save: $34.22 (30%)
ADD TO CART
Product Specifications
- Position: Front
- Replaced by: 38300-S9A-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1984-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 3AT, KA 4AT, KA 5MT, KH 5MT, KL 3AT, KL 4AT, KL 5MT
View related parts
Honda CRX Relay Assembly, Power (4P) (056700-85700) (Denso)
Part Number: 39797-SE3-003
$73.01 MSRP: $103.12
You Save: $30.11 (30%)
ADD TO CART
Product Specifications
- Other Name: Power Relay; Relay
- Replaces: 39795-SE3-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1989-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 5MT, KH 5MT, KL 5MT
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Honda CRX Relay Assembly, Power (4P) (056700-9410) (Denso)
Part Number: 39797-SH2-003
$59.74 MSRP: $84.39
You Save: $24.65 (30%)
ADD TO CART
Product Specifications
- Other Name: Power Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1990-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 4AT, KA 5MT, KH 5MT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Power (4P) (Rc-2201) (Mitsuba)
Part Number: 39797-SE0-004
Product Specifications
- Other Name: Relay Assembly; Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1986-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 4AT, KA 5MT, KH 5MT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Power (4P) (Rc-2201) (Mitsuba)
Part Number: 39795-SB2-003
$92.32 MSRP: $130.41
You Save: $38.09 (30%)
Product Specifications
- Other Name: Power Relay; Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1986-1991 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 4AT, KA 5MT, KH 5MT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Intermittent Wiper (Is-2206) (Mitsuba)
Part Number: 38290-SA5-003
Product Specifications
- Other Name: Intermittent Relay
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1984-1987 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 3AT, KA 4AT, KA 5MT, KH 5MT, KL 3AT, KL 4AT, KL 5MT
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Honda CRX Relay Assembly, Power
Part Number: 39400-SA5-405
Product Specifications
- Replaces: 39400-SA5-661, 39400-688-308, 39400-SD7-003, 39400-SA5-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1984-1985 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 3AT, KA 5MT, KH 5MT, KL 3AT, KL 5MT
View related parts
Honda CRX Relay Assembly, Main (Rz-0042) (Mitsuba)
Part Number: 39400-SB2-931
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1986-1987 Honda CRX | 2 Door SI | KA 5MT, KL 5MT
View related parts
Honda CRX Relay Assembly, Delay (Rack-0014) (5P) (Mitsuba)
Part Number: 39400-SB2-013
Product Specifications
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1986-1987 Honda CRX | 2 Door DX, 2 Door HF, 2 Door SI | KA 4AT, KA 5MT, KH 5MT, KL 4AT, KL 5MT

Honda CRX Relay

Honda CRX Relay is the small electric switch that allows the climate hardware in the compact coupe to respond instantaneously to low power signals to keep the fans, blowers, and compressors clicking on once commanded to do so. Inside every Honda CRX, the Relay gets a gentle control pulse, then flips some contacts internally to pass higher current to the selected component, so a failing unit can switch off a fan or blow cold through a heater. Across the production years, Honda has mainly applied traditional electromechanical Relay designs using an electromagnet and moving contacts, but solid state versions without moving contacts and magnetic latching versions that maintain their state following the loss of power have also been applied, depending on the need for durability or power saving. The standard style resets on any drop of power, the latching style retains the last position until a second pulse comes through, and the solid state Relay type performs the same duty with quieter operation and faster response. Correct diagnosis saves owners from replacing expensive motors when a simple Honda CRX Relay swap restores proper function and comfort in the classic Honda CRX cabin.

In search of affordable OEM Honda CRX Relay? Consider browsing through our extensive inventory of genuine Honda CRX Relay. Not only do we provide market-leading prices and a manufacturer's warranty, but we also pride ourselves on exceptional customer service and swift delivery.

Honda CRX Relay Parts Questions & Experts Answers

Relay Assembly, Main (Rz-0063) (Pgm-Fi) (Mitsuba)
39400-SH3-003
Q: How tonstall a relay between the battery and load help reduce voltage drop and How to test, remove, and install it on Honda CRX?
A:
Location of battery/load may be such that a switch has to be positioned at a distance from the two, defeating the purpose of a low voltage drop by having a long wire. 'This eliminates this voltage drop when a relay is placed between the battery and load and since the switch controls the relay, it passes a reduced amount of amperage'. To check the system and diagnostic the problem first remove the negative battery terminal, then measure the resistance between terminals 3 and 4 or A to B. After that apply +12v across terminals 1 and 2, check for the resistance that is available between terminals 3 and 4 or A to a. If the resistance is not in the specified range or the multimeter shows '-' then the relay has to be replaced. One has to remove the negative battery terminal, find the relay, and then unplug the wire connector if it is for removal. If this is required then undo the attaching bolt and take out the relay and the process of installation will be vice versa of the above mentioned.

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