Dorman 645-236 HVAC Blower Motor Wiring Harness

HVAC Blower Motor Wiring Harness

Dorman 645-236 is an HVAC blower motor wiring harness built to match the fit, function, and electrical performance of the original harness on specified vehicles. It restores a secure connection between the blower motor and the resistor or fan control module when the factory harness has failed from heat, corrosion, or wear.

Compatible with 2007-2014 Cadillac Escalade, 2007-2014 Chevrolet Silverado 1500, and 2007-2014 GMC Sierra applications, this harness is a direct-fit repair for blower motor circuit damage. The Dorman 645-236 helps return proper cabin airflow and air conditioning operation without replacing the entire HVAC system.

Key Features

• Direct replacement HVAC blower motor wiring harness for specified GM trucks and SUVs
• Designed to restore a secure electrical connection at the blower motor circuit
• Built to match original equipment fit, function, and performance
• 2-wire design with blade and Aspa terminal ends
• 14-inch length and 13-gauge wire construction
• Fits blower motor, resistor, or fan control module repair needs on supported vehicles

Detailed Description

This blower motor wiring harness is engineered for vehicles where the original connector has melted, corroded, or otherwise failed. It is a practical repair for HVAC systems that lose blower operation, run intermittently, or show signs of heat damage at the connector. The Dorman 645-236 is a direct OE-style replacement for select Cadillac Escalade, Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, and related applications from 2007-2014.

This part cross-references GM OE part numbers 15887352 and 22957044 for the same application. Use Dorman 645-236 when you need a replacement blower motor pigtail that matches the original terminal layout and supports reliable electrical continuity in the HVAC circuit.

Common Problems It Can Help Solve

• Blower motor stops working due to a damaged connector
• Intermittent fan operation caused by heat-damaged wiring
• Melted or corroded HVAC harness terminals
• Poor electrical contact between the blower motor and control module
• Loss of cabin airflow or reduced air conditioning performance

Installation Notes and Tips

Verify connector style, terminal count, and wire length before installation. This harness uses blade and Aspa terminal types, so confirm the original connector layout on the vehicle before splicing or replacing the damaged section. For best results, inspect the blower motor, resistor, and fan control module for heat damage before completing the repair.

Compatible With 2007-2014 Cadillac Escalade, 2007-2014 Cadillac Escalade ESV, 2007-2013 Cadillac Escalade EXT, 2007-2014 Chevrolet Silverado 1500, 2007-2014 Chevrolet Silverado 2500, 2007-2014 Chevrolet Silverado 2500 HD, 2007-2014 Chevrolet Silverado 3500 HD, 2007-2013 Chevrolet Avalanche, 2007-2014 Chevrolet Tahoe, 2007-2014 GMC Sierra, 2007-2014 GMC Sierra 1500, 2007-2014 GMC Sierra 2500 HD, 2007-2014 GMC Sierra 3500 HD, 2007-2014 GMC Yukon, 2007-2014 GMC Yukon XL 1500, 2007-2013 GMC Yukon XL 2500, and 2007-2009 Hummer H2.

Quality Assurance

Dorman designs this harness as an OE-style replacement for specified GM HVAC repairs, with construction intended to restore dependable blower motor circuit performance on supported Cadillac, Chevrolet Silverado, and GMC Sierra applications.