How to Replace an HVAC Pressure Switch on an Acura TL?

The air conditioning pressure switch serves to detect low and high system pressure, automatically shutting the system off if pressure surpasses predetermined values. To address this component, begin by having the refrigerant discharged and recovered by a certified air conditioning technician. Proceed to remove the radiator. Unplug the electrical connector from the air conditioning pressure switch. Note that on 2004 and later models, the switch is situated on the condenser near the lower line fitting on the right (passenger's) side, while on 2003 and earlier models, it is mounted on the top of the receiver-drier positioned in front of the condenser. Unscrew the pressure switch, lubricate the O-ring on the switch with clean refrigerant oil of the appropriate type, and securely screw the new switch in place. Reconnect the electrical connector, and finally, ensure the system's proper functioning by having it evacuated, charged, and leak-tested by the shop that discharged it.

Genuine Acura TL HVAC Pressure Switch

Air Pressure Switch

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6 HVAC Pressure Switches found

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Acura TL Pressure Sensor Assembly (Sensata)
Part Number: 80450-T2F-A01
$101.69 MSRP: $142.67
You Save: $40.98 (29%)
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Product Specifications
- Other Name: Sensor Assembly, Pressure (Sensata); Pressure Sensor
- Replaces: 80450-SZW-003, 80450-SFE-003
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL A/C Pressure Switch
Part Number: 80440-SS0-901
$93.02 MSRP: $130.50
You Save: $37.48 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch, Air Conditioning (Dual) (Fuji) ; Dual Pressure Switch
- Replaces: 80440-S84-A02, 80440-S84-A01, 80440-SS0-900, 80440-SK3-901
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Switch, Air Conditioning (Dual) (Keihin)
Part Number: 80440-SW5-A01
$89.78 MSRP: $125.95
You Save: $36.17 (29%)
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Product Specifications
- Other Name: Dual Pressure Switch; Pressure Switch, Switch
- Replaces: 80440-SW5-003
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Triple Pressure Switch
Part Number: 80440-S3V-A01
$48.83 MSRP: $68.10
You Save: $19.27 (29%)
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Product Specifications
- Other Name: Switch, Triple Pressure ; Dual Pressure Switch
- Replaces: 80440-S3M-A01
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Switch, Air Conditioning (Tri)
Part Number: 80440-SZ5-003
Product Specifications
- Other Name: Pressure Switch
- Warranty: This genuine part is guaranteed by Acura's factory warranty.
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Acura TL Air Conditioner Refrigerant Pressure Switch
Part Number: 80440-SEP-A01
$51.09 MSRP: $71.25
You Save: $20.16 (29%)
Product Specifications
- Other Name: Switch, Triple Pressure; Pressure Switch
- Warranty: This genuine part is guaranteed by Acura's factory warranty.

Acura TL HVAC Pressure Switch

Acura TL HVAC Pressure Switch is the small yet critical safeguard that lets the climate system know when to allow refrigerant flow, keeping cabin temperatures stable without risking damage. Acting as one of the most delicate links in the A/C chain, this HVAC Pressure Switch constantly reads system pressure then tells the control module to start or stop the compressor, just like relays do for fans and blowers. Across Acura history, the TL HVAC Pressure Switch still relies on a simple pressure-triggered contact, and because ambient, interior, and humidity sensors feed temperature data, the switch works only when accurate information reaches the module. Should it wear out, the compressor may never engage or could run nonstop, spawning dash fault codes and uncomfortable rides, so swapping in a fresh HVAC Pressure Switch is a quick way to prevent larger failures. Regularly replacing the HVAC Pressure Switch in any Acura cabin keeps the entire system responsive, ensuring every TL driver enjoys reliable comfort on each journey.

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Acura TL HVAC Pressure Switch Parts Questions & Experts Answers

A/C Pressure Switch
80440-SS0-901
Q: How to Replace an HVAC Pressure Switch on an Acura TL?
A:
The air conditioning pressure switch serves to detect low and high system pressure, automatically shutting the system off if pressure surpasses predetermined values. To address this component, begin by having the refrigerant discharged and recovered by a certified air conditioning technician. Proceed to remove the Radiator. Unplug the electrical connector from the air conditioning pressure switch. Note that on 2004 and later models, the switch is situated on the condenser near the lower line fitting on the right (passenger's) side, while on 2003 and earlier models, it is mounted on the top of the receiver-drier positioned in front of the condenser. Unscrew the pressure switch, lubricate the O-ring on the switch with clean refrigerant oil of the appropriate type, and securely screw the new switch in place. Reconnect the electrical connector, and finally, ensure the system's proper functioning by having it evacuated, charged, and leak-tested by the shop that discharged it.