Standard Ignition AX657 Cabin Air Temperature Sensor

Cabin Air Temperature Sensor for GM HVAC Systems

Standard Ignition AX657 is a cabin air temperature sensor used in HVAC systems to monitor interior air temperature and support automatic climate control operation. It features a plug-in attachment method, a female 4-terminal plug connector, and a black and silver finish for direct replacement service.

Compatible With select Cadillac XT6, Chevrolet Silverado 1500, Chevrolet Traverse, GMC Acadia, GMC Sierra 1500, Buick Regal Sportback, Buick Regal TourX, and Chevrolet Silverado 1500 LD applications, this sensor is built for vehicles that rely on accurate cabin temperature input for HVAC control. The Standard Ignition AX657 is a practical replacement when the original sensor is no longer reading correctly.

Key Features

• Cabin air temperature sensor for HVAC temperature monitoring
• Plug-in attachment method for straightforward replacement
• Female connector with 4 terminals and polygon-shaped plug interface
• Black and silver color/finish
• Direct-fit service part for select GM vehicles
• Standard Ignition AX657 part number for easy identification

Detailed Description

The Standard Ignition AX657 cabin air temperature sensor helps the HVAC system measure interior air temperature so the climate control module can respond accurately. This part is a direct replacement style sensor with a single female plug connector and plug-in mounting, making it suitable for service on a range of GM platforms. It is commonly searched as a cabin air temperature sensor for Chevrolet Traverse, GMC Acadia, and Silverado 1500 HVAC repair, as well as Cadillac XT6 climate control service.

This part cross-references 13536352 and TS7685 for the same application. If you are replacing a faulty interior temperature sensor on a Chevrolet Silverado 1500, GMC Sierra 1500, or Buick Regal TourX, AX657 provides the correct connector style and terminal layout for the listed applications.

What It Helps Solve

• Incorrect cabin temperature readings
• HVAC systems that blow air too warm or too cold
• Climate control response that does not match the selected setting
• Fault codes related to interior temperature sensing
• Uneven automatic temperature regulation in the cabin

Installation Notes and Tips

Verify connector shape, terminal count, and vehicle application before installation. The AX657 uses a plug-in design with a female connector, so the replacement should match the original sensor connection on the vehicle. Confirm fitment by year, make, and model for Cadillac XT6, Chevrolet Silverado 1500, Chevrolet Traverse, GMC Acadia, GMC Sierra 1500, Buick Regal Sportback, Buick Regal TourX, and Chevrolet Silverado 1500 LD before service.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management service parts. AX657 is built to match the listed connector and application requirements for select GM HVAC systems.