Cardone
Powertrain Control Module

Cardone 77-7521F Powertrain Control Module

Brand Cardone 77-7521F
Connector/Terminal Configuration Pin/Male; Pin/Male; Pin/Male
E-Waste Yes
Housing Material Metal
Product Condition Remanufactured
Product line Powertrain Control Module
Fits Buick, Chevrolet, GMC, Hummer, and Isuzu · 16 vehicles

Remanufactured unit. Restored to meet powertrain control module replacement needs.

Metal housing. Adds durable protection for the module's internal electronics.

Pin/male connectors. Three connector sets for straightforward electrical hookup.

Cross-references Buick 12597521, Buick 19209820 and Chevrolet 12597521 for the same application. See all 11.

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Cardone 77-7521F Powertrain Control Module

The Cardone 77-7521F is a remanufactured powertrain control module for select Chevrolet, GMC, Buick, Hummer, and Isuzu applications. Built with a metal housing and three pin/male connector interfaces, it is a direct-fit PCM solution for vehicles that require vehicle-specific flash programming after installation.

Key Features

  • Remanufactured Powertrain Control Module (PCM) for engine management applications
  • Metal housing for durable electronic module construction
  • Three pin/male connector configurations for the listed OE applications
  • Vehicle-specific flash programming required on or off the vehicle
  • Accurate VIN and mileage information required for programming
  • Fits select 2004-2007 Chevrolet Colorado, GMC Canyon, Trailblazer, and Envoy applications

Detailed Description

This Cardone Powertrain Control Module is engineered for vehicles that use OE part numbers 12597521 and 19209820, with additional interchange coverage for select Buick, Chevrolet, GMC, Hummer, and Isuzu applications. The remanufactured design supports replacement of a failed PCM while maintaining the original vehicle calibration process through proper flash programming. For 2006 Buick Rainier, Chevrolet Colorado, Chevrolet Trailblazer, Chevrolet Trailblazer EXT, GMC Canyon, GMC Envoy, GMC Envoy XL, Hummer H3, Isuzu Ascender, and Isuzu i-350, programming must be completed with accurate VIN and mileage data, and on-car programming must be performed after installation to avoid drivability or starting issues. This part number, 77-7521F, also covers 2007 Chevrolet Trailblazer and 2007 GMC Envoy, plus 2004-2005 Chevrolet Colorado and GMC Canyon applications.

What It Helps Fix

  • Engine control module failure codes related to PCM malfunction
  • No-start or hard-start conditions tied to module calibration issues
  • Drivability problems caused by incorrect or corrupted PCM data
  • Communication faults between the PCM and vehicle systems
  • Issues after replacing an original module that still requires programming

Installation Notes and Tips

  • Verify OE number match before ordering: 12597521 or 19209820 where listed.
  • Vehicle-specific flash programming is required on or off the vehicle.
  • Provide accurate VIN and mileage for proper module setup.
  • Perform on-car programming after installation when required by the application.
  • Confirm connector style and housing fitment before installation.

Quality Assurance

Cardone remanufactured electronic control modules are processed to restore OE-style function for the listed applications. This PCM uses a metal housing and application-specific calibration requirements to support proper integration with the vehicle’s engine management system.

This part fits 16 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2007ChevroletTrailblazer4.2LL6N/ARemanufactured Powertrain Control Module
2007GMCEnvoy4.2LL6N/ARemanufactured Powertrain Control Module
2006BuickRainier4.2LL6N/Awith OE # 12597521; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006ChevroletColorado——N/Awith OE # 12597521; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006ChevroletTrailblazer4.2LL6N/Awith OE # 12597521; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006ChevroletTrailblazer EXT4.2LL6N/Awith OE # 12597521; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006GMCCanyon——N/Awith OE # 12597521; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006GMCEnvoy4.2LL6N/Awith OE # 12597521; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006GMCEnvoy XL4.2LL6N/Awith OE # 12597521; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006HummerH33.5LL5N/Awith OE # 12597521; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006IsuzuAscender4.2LL6N/Awith OE # 8-12597-521-0; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2006Isuzui-3503.5LL5N/Awith OE # 8-12597-521-0; Vehicle specific Flash programming required ON or OFF the vehicle. Accurate VIN and mileage are required; Vehicle specific On-Car Programming must be performed AFTER installation to prevent drivability and starting issues; Powertrain Control Module
2005ChevroletColorado——N/ARemanufactured Powertrain Control Module
2005GMCCanyon——N/ARemanufactured Powertrain Control Module
2004ChevroletColorado——N/ARemanufactured Powertrain Control Module
2004GMCCanyon——N/ARemanufactured Powertrain Control Module
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Buick — 12597521Buick — 19209820Chevrolet — 12597521Chevrolet — 19209820GMC — 12597521GMC — 19209820Hummer — 12597521Hummer — 19209820Isuzu — 12597521Isuzu — 8125975210Isuzu — 8192098200