Cardone 77-4976F Powertrain Control Module

Remanufactured PCM for GM and Saab Applications

Cardone 77-4976F is a remanufactured powertrain control module for select GM and Saab vehicles. Built with a metal housing and OE-style pin/male connector terminals, this PCM is intended for direct replacement where the original module has failed or needs reprogramming.

Compatible With 2003-2005 Chevrolet Trailblazer and Trailblazer EXT, 2003-2005 GMC Envoy and Envoy XL, 2004-2005 GMC Envoy XUV, 2004-2005 Buick Rainier, 2003-2004 Oldsmobile Bravada, 2003-2005 Isuzu Ascender, and 2005-2006 Saab 9-7x. This part number, 77-4976F, also cross-references OE applications using 12574976 and 12577955.

Key Features

• Remanufactured powertrain control module for engine management replacement
• Metal housing for durable module construction
• Pin/male connector configuration: Pin/Male; Pin/Male; Pin/Male
• OE reference coverage for multiple GM and Saab platforms
• E-waste designated component

Product Details

Cardone Powertrain Control Module 77-4976F is built for vehicles that require a vehicle-specific PCM replacement with flash programming. The module supports applications across Chevrolet, GMC, Buick, Oldsmobile, Isuzu, and Saab platforms listed above, including Trailblazer, Envoy, Rainier, Bravada, Ascender, and 9-7x models. Accurate VIN and mileage information are required for programming, and on-car programming must be completed after installation to prevent drivability and starting issues.

What This PCM Helps Address

• Hard starting or no-start conditions related to PCM failure
• Drivability concerns caused by corrupted or incorrect module data
• Check engine light issues tied to control module faults
• Communication problems between the PCM and vehicle systems
• Replacement needs after water, heat, or electrical damage to the original module

Installation Notes and Tips

• Vehicle-specific flash programming is required on or off the vehicle, depending on application.
• Provide the correct VIN and mileage before programming.
• Perform on-car programming after installation to avoid drivability and starting problems.
• Verify OE number match before ordering: 12574976 or 12577955 where listed in fitment.
• Confirm connector style and module location against the original unit before replacement.

Quality Assurance

This Cardone Powertrain Control Module is remanufactured to support OE-style replacement needs for the listed GM and Saab applications. The part number 77-4976F is built for vehicle-specific fitment and programming requirements, with OE cross-reference coverage for 12574976 and 12577955 applications.