Dorman 599-959 Electronic Throttle Body Module

Overview of Dorman Electronic Throttle Body Module 599-959

The Dorman 599-959 electronic throttle body module is designed for precise throttle control in select GM vehicles. This remanufactured module ensures reliable performance for Cadillac, Chevrolet, GMC, and Hummer models requiring accurate air and fuel delivery management.

• Compatible with multiple GM trucks and SUVs including Chevrolet Silverado and GMC Sierra series
• Black rectangular connector with 16 male blade terminals for secure electrical connection
• Three mounting holes for stable installation
• Width dimension of 7.25 inches for proper fitment
• Remanufactured throttle control module ensuring functional restoration

Technical Details and Attributes

The Dorman 599-959 features a black rectangular connector housing 16 male blade terminals, designed to interface seamlessly with the vehicle’s wiring harness. The blade terminal type supports reliable electrical contact, while the three mounting holes provide secure attachment points to the throttle body assembly. Measuring 7.25 inches in width, this module fits the specified GM models without modification. The remanufactured nature of this throttle control module means it has been restored to meet original equipment specifications, ensuring consistent throttle response and engine performance.

Compatible Vehicles and Applications

This electronic throttle body module is compatible with a range of GM vehicles, including:

• Cadillac Escalade, Escalade ESV, and Escalade EXT
• Chevrolet Avalanche 1500 and 2500, Silverado 1500, 1500 HD, 2500, 2500 HD, 3500, Suburban 1500 and 2500, Tahoe
• GMC Sierra 1500, 1500 HD, 2500, 2500 HD, 3500, Yukon, Yukon XL 1500, Yukon XL 2500
• Hummer H2

Use of the Dorman 599-959 ensures compatibility with these models’ fuel injection and throttle control systems.

Common Issues Addressed by This Module

• Erratic or unresponsive throttle behavior
• Check engine light related to throttle position sensor faults
• Reduced engine power or limp mode activation
• Inconsistent idle speed or stalling
• Poor acceleration response

Installation Notes and Tips

Installation of the Dorman 599-959 electronic throttle body module requires basic mechanical skills and proper tools. Ensure the vehicle’s battery is disconnected before removal to prevent electrical damage. Carefully disconnect the black rectangular connector with 16 male blade terminals, noting the secure fit. Align the module using the three mounting holes and tighten bolts to manufacturer torque specifications. After installation, clear any diagnostic trouble codes and perform a throttle body relearn procedure if required by the vehicle’s service manual.

Quality Assurance and Warranty

This remanufactured throttle control module undergoes rigorous testing to meet OEM standards for performance and durability. Dorman provides a limited warranty covering defects in materials and workmanship, offering assurance of product reliability when installed according to guidelines.