How is the HVAC Pressure Switch Installed and What Steps are Involved in the Process on a Honda Civic?

The HVAC Pressure Switch is mounted in the refrigerant line between the condenser and the evaporator, detecting low (28 psi) and high (455 psi) refrigerant line pressure, shutting the system off if the pressure falls below or exceeds these values. Begin by having the refrigerant discharged and recovered by an air conditioning technician. Next, set the parking brake, block the rear wheels, and raise the front of the vehicle, supporting it securely on jackstands, then remove the under-vehicle splash shield. Locate the switch on the right side of the vehicle and unplug the electrical connector from the HVAC Pressure Switch, ensuring clarity by removing the front bumper cover if necessary. Unscrew the pressure switch from the line, holding the stationary fitting with an open-end wrench to prevent damage. Lubricate the switch O-ring with clean refrigerant oil of the correct type, then screw the new switch onto the refrigerant line and tighten it securely. Reconnect the electrical connector and have the system evacuated, charged, and leak tested by an air conditioning technician.

Genuine Honda Civic HVAC Pressure Switch

Air Pressure Switch

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10 HVAC Pressure Switches found

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Honda Civic Sensor Assembly, Press
Part Number: 80450-T2F-A01
$98.44 MSRP: $142.67
You Save: $44.23 (31%)
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Product Specifications
- Other Name: Pressure Switch; Pressure Sensor
- Replaces: 80450-SZW-003, 80450-SFE-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2006-2026 Honda Civic | 2 Door DX, 2 Door EX, 2 Door EX (Turbo), 2 Door EX (Turbo/6MT), 2 Door EX (Turbo/CVT), 2 Door EX-L, 2 Door LX, 2 Door LX (6MT), 2 Door LX (CVT), 2 Door SI, 2 Door Sport, 2 Door Sport (6MT), 2 Door Sport (CVT), 2 Door Touring, 2 Door Touring (Turbo), 4 Door 1.5T EX, 4 Door 1.5T EX BD, 4 Door 1.5T Touring, 4 Door 2.0L LX, 4 Door 2.0L Sport, 4 Door DX, 4 Door EX, 4 Door EX (Turbo), 4 Door EX-A, 4 Door EX-L, 4 Door EX-T, 4 Door EX-TA, 4 Door EX-TL, 4 Door EX-TLA, 4 Door GX, 4 Door HF, 4 Door LX, 4 Door LX (6MT), 4 Door LX (AT), 4 Door LX (CVT), 4 Door LX 2WD, 4 Door LX-A, 4 Door LX-S, 4 Door MX, 4 Door MX (Hybrid), 4 Door SE, 4 Door SI, 4 Door Si, 4 Door Si FWD, 4 Door Si With High Performance Tires, 4 Door Sport, 4 Door Sport (6MT), 4 Door Sport (CVT), 4 Door Sport 2WD, 4 Door Touring, 4 Door Touring (Turbo), 5 Door 1.5T EX-L, 5 Door 1.5T Sport Touring, 5 Door 2.0L LX, 5 Door 2.0L Sport, 5 Door EX, 5 Door EX-L, 5 Door LX, 5 Door SE, 5 Door Sport, 5 Door Sport FWD, 5 Door Sport Touring, 5 Door Touring LE, 5 Door Type R, 5 Door Type R (Touring) | 6MT, CVT, KA 5AT, KA 5MT, KA 6MT, KA CVT, KL 5AT, KL CVT
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Honda Civic Switch, Air Conditioning (Dual) (Fuji)
Part Number: 80440-SS0-901
$89.69 MSRP: $126.68
You Save: $36.99 (30%)
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Product Specifications
- Other Name: Pressure Cycling Switch
- Replaces: 80440-S84-A01, 80440-S84-A02, 80440-SS0-900, 80440-SK3-901
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1994-2000 Honda Civic | 2 Door DX, 2 Door EX, 2 Door HX, 2 Door SI, 3 Door CX, 3 Door DX, 3 Door SI, 3 Door VX, 4 Door DX, 4 Door DX-VP, 4 Door EX, 4 Door GX, 4 Door LX | KA 4AT, KA 5MT, KA CVT, KL 4AT, KL 5MT, KL CVT, KR 5MT, KW 5MT
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Honda Civic Switch, Air Conditioning (Dual) (Keihin)
Part Number: 80440-SW5-A01
$86.56 MSRP: $122.27
You Save: $35.71 (30%)
ADD TO CART
Product Specifications
- Other Name: Dual Pressure Switch; A/C Switch, Pressure Switch
- Replaces: 80440-SW5-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2001-2005 Honda Civic | 2 Door DX, 2 Door EX, 2 Door HX, 2 Door LX, 4 Door DX, 4 Door DX-VP, 4 Door EX, 4 Door GX, 4 Door LX, 4 Door LX-CAR, 4 Door MX (Hybrid) | KA 4AT, KA 5MT, KA CVT, KL 4AT, KL 5MT, KL CVT
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Honda Civic Switch, Air Conditioning (Dual) (Hadsys)
Part Number: 80440-SW5-003
$86.56 MSRP: $122.27
You Save: $35.71 (30%)
ADD TO CART
Product Specifications
- Replaced by: 80440-SW5-A01
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2001-2005 Honda Civic | 4 Door EX, 4 Door LX, 4 Door MX (Hybrid) | KA 4AT, KA 5MT, KA CVT, KL 4AT, KL 5MT, KL CVT
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Honda Civic Sensor Assembly, Pressure
Part Number: 80450-SZW-003
$98.44 MSRP: $142.67
You Save: $44.23 (31%)
ADD TO CART
Product Specifications
- Other Name: Pressure Sensor
- Replaced by: 80450-T2F-A01
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2012 Honda Civic | 2 Door EX, 2 Door EX-L, 2 Door LX, 2 Door SI, 4 Door EX, 4 Door EX-L, 4 Door GX, 4 Door HF, 4 Door LX, 4 Door LX (AT), 4 Door MX (Hybrid), 4 Door SI | KA 5AT, KA 5MT, KA 6MT, KA CVT, KL 5AT, KL CVT
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Honda Civic Switch, Air Conditioning (Dual) (Saginomiya)
Part Number: 80440-SK3-901
$89.69 MSRP: $126.68
You Save: $36.99 (30%)
ADD TO CART
Product Specifications
- Replaced by: 80440-SS0-901
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1998-2000 Honda Civic | 2 Door DX, 2 Door HX | KA 4AT, KA 5MT, KA CVT, KL 4AT, KL 5MT, KL CVT, KW 5MT
- 1994-1996 Honda Civic | 2 Door DX, 2 Door HX, 4 Door EX | KA 4AT, KA 5MT, KA CVT, KL 4AT, KL 5MT, KL CVT
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Honda Civic Switch, Air Conditioning (Dual)
Part Number: 80440-S6A-003
Product Specifications
- Other Name: Dual Pressure Switch; Pressure Switch
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 2002-2005 Honda Civic | 3 Door SI | KA 5MT
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Honda Civic Switch, Air Conditioning (Dual) (Fuji)
Part Number: 80440-SM4-003
Product Specifications
- Other Name: Dual Pressure Switch; Pressure Switch
- Replaces: 80440-SM4-000, 80440-SD5-003, 80440-SL5-A01, 80440-SR3-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1992-1993 Honda Civic | 2 Door DX, 2 Door EX, 2 Door EX-S, 3 Door CX, 3 Door DX, 3 Door SI, 3 Door VX, 4 Door DX, 4 Door EX, 4 Door LX | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Civic Switch, Air Conditioning (Dual)
Part Number: 80440-SL5-A01
Product Specifications
- Replaced by: 80440-SM4-003
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1993 Honda Civic | 2 Door DX, 2 Door EX, 2 Door EX-S, 3 Door CX, 3 Door DX, 3 Door SI, 3 Door VX, 4 Door DX, 4 Door EX, 4 Door LX | KA 4AT, KA 5MT, KL 4AT, KL 5MT
View related parts
Honda Civic Switch, Air Conditioning (Dual)
Part Number: 80440-SE0-003
Product Specifications
- Other Name: Dual Pressure Switch; Combination Switch
- Warranty: This genuine part is guaranteed by Honda's factory warranty.
Fits the following Vehicles:
- 1988-1991 Honda Civic | 3 Door DX, 3 Door SI, 3 Door STD, 4 Door DX, 4 Door EX, 4 Door LX, 5 Door (Wagovan), 5 Door 4WD, 5 Door DX | KA 4AT, KA 4MT, KA 5MT, KL 4AT, KL 4MT, KL 5MT

Honda Civic HVAC Pressure Switch

The Honda Civic HVAC Pressure Switch is responsible for monitoring refrigerant pressure, turning off the compressor when levels get too high or too low as this prevents the system from seizing up and stopping warm air from blasting on hot days. Acting like a tiny traffic light, the HVAC Pressure Switch provides real-time data to the control module, enabling relays and sensors to cycle fans and the blower only when conditions are right. Early generations of Honda applied a simple single-stage HVAC Pressure Switch which just opened the circuit at preset high or low thresholds. Later Civic versions became dual-stage designs with separate high and low contacts so that the controller gets more precise readings and can stage the compressor prior to potential danger. Despite this evolution, the common element of both styles is small housings that allow threading into the A/C line and spring-loaded diaphragms to sense pressure changes instantly. Replacing a tired HVAC Pressure Switch before it gets stuck prevents frustrating dash fault codes and keeps every Honda and every Civic with steady cabin temperatures all year round. Modern Honda Civic owners therefore rely on the HVAC Pressure Switch for quiet reliability.

In search of affordable OEM Honda Civic HVAC Pressure Switch? Consider browsing through our extensive inventory of genuine Honda Civic HVAC Pressure Switch. 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 Civic HVAC Pressure Switch Parts Questions & Experts Answers

Sensor Assembly, Press
80450-T2F-A01
Q: How is the HVAC Pressure Switch Installed and What Steps are Involved in the Process on a Honda Civic?
A:
The HVAC Pressure Switch is mounted in the refrigerant line between the condenser and the evaporator, detecting low (28 psi) and high (455 psi) refrigerant line pressure, shutting the system off if the pressure falls below or exceeds these values. Begin by having the refrigerant discharged and recovered by an air conditioning technician. Next, set the parking brake, block the rear wheels, and raise the front of the vehicle, supporting it securely on jackstands, then remove the under-vehicle splash shield. Locate the switch on the right side of the vehicle and unplug the electrical connector from the HVAC Pressure Switch, ensuring clarity by removing the front bumper cover if necessary. Unscrew the pressure switch from the line, holding the stationary fitting with an open-end wrench to prevent damage. Lubricate the switch O-ring with clean refrigerant oil of the correct type, then screw the new switch onto the refrigerant line and tighten it securely. Reconnect the electrical connector and have the system evacuated, charged, and leak tested by an air conditioning technician.

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