Standard Ignition AX278 HVAC Heater Core Temperature Sensor

HVAC Heater Core Temperature Sensor for Acura RL

Standard Ignition AX278 is an HVAC heater core temperature sensor built for direct replacement service on select Acura RL models. It uses a plug-in female connector with two male blade terminals to support a straightforward electrical connection in the heater core temperature sensing circuit.

Compatible with 2005-2012 Acura RL applications, this sensor is a practical choice when diagnosing inaccurate cabin temperature control or heater core temperature signal issues. Standard Ignition AX278 is also referenced by part number AX278 for easy catalog matching.

Key Features

• HVAC heater core temperature sensor for select Acura RL vehicles
• Plug-in connector design with female connector gender
• 2 male blade terminals for the electrical interface
• Sensor contents only, focused on temperature signal input
• Direct-fit replacement format for service work on the HVAC system

Detailed Description

Standard Ignition AX278 is an HVAC sensor used in the heater core temperature monitoring circuit on 2005-2012 Acura RL models. The connector layout includes one female plug-in connector and two male blade terminals, which helps match the original electrical connection style during replacement. If you are searching for an Acura RL heater core temperature sensor, HVAC temperature sensor, or Standard Ignition AX278 replacement, this part is built for that application.

This part cross-references Honda OE-style and aftermarket numbers such as 80560SJAA01 and SU10535 for the same application.

Common Symptoms It May Address

• Incorrect heater core temperature signal to the HVAC control system
• Unstable or inconsistent cabin heat regulation
• Fault codes related to HVAC temperature sensing
• Loss of accurate temperature feedback from the heater core circuit
• Heating performance concerns tied to sensor input errors

Installation Notes and Tips

Verify connector style, terminal count, and vehicle application before installation. On 2005-2012 Acura RL models, confirm the sensor location in the HVAC heater core circuit and inspect the harness terminals for corrosion, looseness, or heat damage before connecting the replacement part. Clear any stored HVAC-related codes after installation if the vehicle requires it.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. AX278 is cataloged for specific Acura RL fitment, helping support accurate part selection for HVAC temperature sensor replacement service.