HomeCardone 77-6021 Engine Control Module
Part #: 77-6021

Cardone 77-6021 Engine Control Module

Engine Control Module
74 vehicles fit this part
Select your vehicle to confirm fitment
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Engine Control Module
Fitment: Chevrolet and GMC, C10, C20, G10, G20, G30, K10, C1500, C2500, G1500, G2500, G3500, K1500, C10 Suburban, C20 Suburban, C30, El Camino, K10 Suburban, K20, K20 Suburban, K30, K5 Blazer, P20, P30, C1500 Suburban, C2500 Suburban, C3500, Caballero, Jimmy, K1500 Suburban, K2500, K2500 Suburban, K3500, P2500, and P3500
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Overview of Cardone Engine Control Module 77-6021

The Cardone Engine Control Module (ECM) part number 77-6021 is designed for select Chevrolet and GMC vehicles, including models like the C10, K5 Blazer, and Suburban series. This ECM plays a critical role in managing engine functions and ensuring optimal vehicle performance.

  • Compatible with Chevrolet and GMC trucks and SUVs including C10, C20, K10, K1500, and Suburban variants
  • Part of Cardone's Engine Control Module product line, focused on reliable engine management solutions
  • Supports engine control and powertrain management for improved drivability
  • Includes important considerations for VIN programming and passive anti-theft system (P.A.T.S.) compatibility
  • GTIN: 00082617144766 for precise identification

About the Cardone Engine Control Module Product Line

The Engine Control Module product line from Cardone specializes in replacement ECMs engineered to meet or exceed original equipment specifications. These modules are designed to integrate seamlessly with the vehicle’s existing systems, including powertrain control and security features. The 77-6021 ECM is part of this line, ensuring compatibility with specific Chevrolet and GMC models and addressing key programming requirements such as VIN registration and anti-theft system resets.

Detailed Product Description

The Cardone 77-6021 ECM is a direct replacement module for various Chevrolet and GMC vehicles, including the C10, C20, C30, K5 Blazer, and multiple Suburban models. This control module manages critical engine functions and powertrain operations, helping maintain engine efficiency and emissions compliance. It is important to note that some Chrysler PCM units with a "v" suffix require VIN programming, and similar considerations apply to Ford vehicles with passive anti-theft systems. While this ECM is designed for GM vehicles, understanding these programming and reset procedures is essential for proper installation and operation.

Common Applications and Issues Addressed

  • Engine misfires or poor performance due to faulty ECM
  • Vehicle fails to start or experiences intermittent stalling
  • Check engine light triggered by ECM-related faults
  • Powertrain control issues affecting fuel efficiency and emissions
  • Compatibility problems with passive anti-theft systems requiring reset or programming

Installation Notes and Tips

  • Verify the part number 77-6021 matches the original ECM before installation
  • Ensure VIN programming is completed if required by the vehicle’s security system
  • Use a compatible diagnostic tool to reset or program the passive anti-theft system if applicable
  • Confirm the ECM is compatible with the specific Chevrolet or GMC model and year
  • Follow manufacturer guidelines for disconnecting and reconnecting the battery during installation

Quality Assurance and Warranty

Cardone Engine Control Modules undergo rigorous testing to meet OEM standards for durability and performance. While specific warranty details for part number 77-6021 should be confirmed at the point of purchase, Cardone typically offers coverage against defects in materials and workmanship to ensure reliability in service.

This part fits 74 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1984ChevroletC104.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984ChevroletC204.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984ChevroletG104.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984ChevroletG204.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984ChevroletG304.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984ChevroletK104.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984GMCC15004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984GMCC25004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984GMCG15004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984GMCG25004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984GMCG35004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1984GMCK15004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983ChevroletC104.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983ChevroletC105.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletC105.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletC10 Suburban5.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletC10 Suburban5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletC205.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletC205.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletC204.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983ChevroletC20 Suburban5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletC20 Suburban5.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletC305.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletEl Camino5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletG105.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletG104.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983ChevroletG105.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletG204.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983ChevroletG205.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletG205.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletG304.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983ChevroletG305.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK104.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983ChevroletK105.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK105.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK10 Suburban5.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK10 Suburban5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK205.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK20 Suburban5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK305.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK5 Blazer5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletK5 Blazer5.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletP205.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983ChevroletP305.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC15005.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC15004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983GMCC15005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC1500 Suburban5.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC1500 Suburban5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC25004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983GMCC25005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC25005.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC2500 Suburban5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC2500 Suburban5.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCC35005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCG15005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCG15004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983GMCG15005.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCG25005.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCG25004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983GMCG25005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCG35005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCG35004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983GMCJimmy5.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCJimmy5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCK15005.0LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCK15004.1LL6N/APROM(s)/CALPACK transfer required from original module; Additional relearns may be necessary, including theft, crankshaft, idle, etc, with California Emission System.; Engine Control Module
1983GMCK15005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCK1500 Suburban5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCK25005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCK2500 Suburban5.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCK35005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCP25005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module
1983GMCP35005.7LV8N/ATransfer PROM(s)/CALPACK, and perform any required relearns on new Engine Control Module.; Engine Control Module

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1226021

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.