Dorman 973-580 HVAC Blower Motor Resistor Kit

Dorman 973-580 HVAC Blower Motor Resistor Kit

Dorman 973-580 is an HVAC blower motor resistor kit that replaces a failed original resistor and includes the matching harness pigtail for a cleaner repair. It is built for vehicles with manual air conditioning controls, including select Toyota RAV4, Corolla, and Scion tC and xB applications.

Key Features

• Direct replacement blower motor resistor kit for manual HVAC systems
• Includes a resistor and wiring harness pigtail for connector repair
• Blade terminal design with a female connector and male terminals
• 16.5-inch wiring harness length
• 4-wire, 4-terminal configuration with 2 mounting holes
• Package contents include the blower motor resistor, wire harness, 4 butt connectors, and instructions

Detailed Description

This Dorman HVAC blower motor resistor kit is made for repairing overheated or corroded resistor circuits in the blower motor control system. It addresses common failures in manual air conditioning setups by replacing the resistor and the damaged harness connection at the same time. Part number 973-580 is listed for select 2006-2018 Toyota RAV4 models built in Japan with manual air conditioning controls, 2009-2013 Toyota Corolla models built in Japan with manual air conditioning controls, 2011-2016 Scion tC models with manual air conditioning controls, and 2008-2015 Scion xB models with manual air conditioning controls. This part cross-references OE-style numbers such as 4P1655 and RU718 for the same application.

Common Problems It Can Solve

• Blower fan works only on certain speed settings
• No cabin airflow from the HVAC blower motor
• Intermittent blower operation caused by a damaged resistor circuit
• Heat damage or corrosion at the original resistor connector
• Electrical connection issues in manual air conditioning control systems

Installation Notes and Tips

Verify the vehicle uses manual air conditioning controls before ordering. Confirm the original connector style, mounting location, and harness routing against the existing part before installation. The included harness pigtail and butt connectors support repair of heat-damaged wiring at the resistor connector, and the blade terminal layout should be matched carefully during installation.

Quality Assurance

Dorman designs replacement electrical components to address common failure points in original HVAC circuits. Part number 973-580 is engineered as a service replacement for select Toyota and Scion manual climate control applications and is backed by Dorman product support.