Skip to content

Cart

Your cart is empty

ECM Bench Harness 21-25 GM E66 3.0L

SKU: BF02978
Sale price$310.00 USD

ECM Bench Harness 21-25 GM E66 3.0L
ECM Bench Harness 21-25 GM E66 3.0L Sale price$310.00 USD

★★★★★
★★★★★
★★★★★
★★★★★

This Engine Module Harness 21-25 GM E66 3.0L is used with 2021-2025 GM 3.0L Duramax such as 1500 trucks, Tahoe, Yukon, and Escalade.

IMPORTANT! KNOW YOUR APPLICATION 
The E66 ECM is Global B platform. It requires a 3rd party unlock service to communicate. BenchForce does not offer ECU unlock services.

More than this, you may have to create your own "car in a box" to communicate with Global B ECMs when modules are not present on the bench. GM has created a physical messaging requirement that goes beyond what some programming interface tools are capable of overcoming.

VEHICLE DETAILS
MAKES:  Chevrolet, GMC
MODELS:  Sierra, Silverado
YEARS:  2022-2025
ENGINES:  3.0L
MODULE:  Engine Module
USAGE:  2022-2022.5 Chevrolet Silverado 1500 3.0L Duramax LM2
2022-2022.5 GMC Sierra 1500 3.0L Duramax LM2
2021-2023 Chevrolet Suburban 3.0L Duramax LM2
2021-2023 Chevrolet Tahoe 3.0L Duramax LM2
2021-2023 GMC Yukon 3.0L Duramax LM2
2021-2023 Cadillac Escalade 3.0L Duramax LM2
2022-2025 Chevrolet Silverado 1500 3.0L Duramax LZ0
2022-2025 GMC Sierra 1500 3.0L Duramax LZ0
ALIASES:  E66  LM2, LZ0 Duramax

 SUPPORTED COMMUNICATION PROTOCOL(S)   DLC PIN(S) 
 CAN BUS   16 WAY OBD-II DLC PINS 6 & 14 

POWERBLOCK CONNECTION
For communication on OBD-II DLC pins 2, 6, and 14, this harness requires OBD-II Pass-Thru Harness. OBD-II Pass-Thru Harness sold separately.