Remanufactured 2003-2005 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, GMC Envoy XUV + 1 more GM ECM PCM ECU | Service Number 12577955 Engine_8_1L 2L 2006-2011 Cadillac DTS 4

2L 2006-2011 Cadillac DTS 4

7L | RPO ZN4 Technical resources

a clear module label photo

READY TO INSTALL

Hollander lookup numbers: 591-02000

Remanufactured 2003-2005 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, GMC Envoy XUV + 1 more GM ECM PCM ECU | Service Number 12577955 Engine_8_1L 2L 2006-2011 Cadillac DTS 4Remanufactured GM ECM VIN Programmed Ready to Install Condition: Remanufactured unit. This remanufactured GM engine control module is prepared for VIN based programming and application review. The application guide below lists compatible GM vehicles and related service module numbers in a normalized year, make, and model format. GM service numbers and module labels may cross reference multiple vehicle applications. We keep the service module number