Standard Ignition AX92 Ambient Air Temperature Sensor

Ambient Air Temperature Sensor for GM HVAC Systems

Standard Ignition AX92 is an ambient air temperature sensor built for precise HVAC temperature input and dependable service. It is a direct-fit style replacement with a black oval plug-in connector, bolt-on attachment, and included mounting bracket(s) for a clean installation on supported GM trucks and SUVs.

Fits 1998-2001 GMC Jimmy, HVAC Automatic Temperature Control (ATC) relay with bracket, and other listed Chevrolet and GMC applications including Tahoe, Yukon, Blazer, Silverado, Sierra, and Suburban models.

Key Features

• Ambient air temperature sensor for HVAC temperature monitoring
• Standard Ignition AX92 replacement part
• Bolt-on attachment method for secure mounting
• Black housing with oval female plug-in connector
• 2-pin male terminals for electrical connection
• Mounting bracket(s) included
• No wiring harness included
• Built with high-grade materials for consistent performance and longer service life

Product Details

The AX92 is designed for vehicles that rely on ambient air temperature input for HVAC control logic. Standard Ignition focuses on precision sensor performance and durable construction, using quality materials and proven engineering to support reliable operation in demanding underhood and exterior environments. This part cross-references Four Seasons 75985 for the same application.

Compatible With 1998-2001 GMC Jimmy, 1999-2000 Cadillac Escalade, 1998-2000 Chevrolet Tahoe, 1998-2000 GMC Yukon, 1998-1999 Chevrolet C1500, 1998-1999 Chevrolet C1500 Suburban, 1998-1999 Chevrolet C2500, 1998-1999 Chevrolet C2500 Suburban, 1998-1999 Chevrolet C3500, 1998-1999 Chevrolet K1500, 1998-1999 Chevrolet K1500 Suburban, 1998-1999 Chevrolet K2500, 1999 Chevrolet K2500 Suburban, 1998-1999 Chevrolet K3500, 1999 Chevrolet Silverado 1500, 1999 Chevrolet Silverado 2500, 1998-1999 GMC C1500, 1998-1999 GMC C1500 Suburban, 1998-1999 GMC C2500, 1998-1999 GMC C2500 Suburban, 1998-1999 GMC C3500, 1998-1999 GMC K1500, 1998-1999 GMC K1500 Suburban, 1998-1999 GMC K2500, 1998-1999 GMC K2500 Suburban, 1998-1999 GMC K3500, 1999 GMC Sierra 1500, 1999 GMC Sierra 2500, 1998 Chevrolet Blazer, and 1998 Chevrolet K2500 Suburban with automatic shift transfer case.

What It Helps Address

• Incorrect ambient temperature readings sent to the HVAC system
• Erratic automatic temperature control behavior
• HVAC performance issues caused by a failed exterior temperature sensor
• Faulty sensor mounting or connector fitment on supported GM vehicles
• Replacement needs after corrosion, impact, or age-related sensor wear

Installation Notes

Verify connector shape, terminal count, and bracket style before installation. This sensor uses a plug-in female connector with two male pin terminals and a bolt-on mounting design. The wiring harness is not included, so reuse the existing harness where applicable. Confirm vehicle-specific fitment for the exact year, make, model, and HVAC configuration before ordering.

Quality Assurance

Standard Ignition builds this sensor with high-grade materials and construction to support professional installation confidence and consistent operation. The design reflects decades of research and development focused on technician needs and long-term performance.