Remanufactured 2003 & 2005-2006 Cadillac Escalade, Chevrolet Tahoe, GMC Yukon + 10 more GM P59 ECM PCM ECU | Service Number 12589463

Remanufactured GM ECM - VIN Programmed - Ready to Install Condition: Remanufactured unit. This remanufactured GM P59 engine control module is prepared for VIN-based programming and application review. Service number 12589463 is listed in Hollander interchange group 590-07633 alongside the related service numbers below. The application guide follows that Hollander group. Final controller hardware and calibration are reviewed against your VIN and original module information before release. Product details Application: GM vehicle applications listed below Vehicle type: Car / Truck Makes covered: Cadillac, Chevrolet, GMC, Hummer Module type: Engine Control Module (ECM / PCM) Controller / hardware family: P59 Hollander lookup number: 590-07633 Module / primary service number: 12589463 Compatible service / module interchange numbers 12589463 12582605 12602802 89017734 89017750 Related service numbers identify the interchange group. VIN, original hardware, throttle configuration, and calibration details must be confirmed for the intended vehicle. Vehicle application coverage Years Make Model Engine / application notes 2003 Chevrolet Avalanche 1500 (LH front under battery) 2005-2006 Chevrolet Avalanche 1500 (LH front under battery) 2003 GMC Envoy XL 5.3L (next to air box) 2005-2006 Cadillac Escalade (LH front under battery) 2005-2006 Cadillac Escalade ESV (LH front under battery) 2005-2006 Cadillac Escalade EXT (LH front under battery) 2003 Hummer H2 (LH front under battery) 2005-2006 Hummer H2 (LH front under battery) 2003 GMC Sierra Denali (LH front under battery) 2005-2006 GMC Sierra Denali (LH front under battery) 2003 Chevrolet SSR (next to air box) 2003 Chevrolet Suburban 1500 (LH front under battery) 2005-2006 Chevrolet Suburban 1500 (LH front under battery) 2003 Chevrolet Tahoe (LH front under battery) 2005-2006 Chevrolet Tahoe (LH front under battery) 2003 Chevrolet TrailBlazer EXT 5.3L (next to air box) 2003 GMC Yukon (LH front under battery) 2005-2006 GMC Yukon (LH front under battery) 2003 GMC Yukon XL 1500 (LH front under battery) 2005-2006 GMC Yukon XL 1500 (LH front under battery) Technical resources Technical Data & Downloads Use our technical data library for supporting controller references, connector information, programming notes, and related service documents when they are available. GM Tuning Use our GM Tuning services for related calibration, VATS, sensor removal, check engine light, drivability, and performance service options. GM Programming Services Use our GM programming services for related setup, unlock, programming, and module service options when additional work is needed. Important fitment and programming notice Please verify your original module number before purchase and provide your VIN so programming and fitment can be reviewed. When available, include the original module number or software ID, a clear module label photo, and photos of the original unit / connector side. Many GM vehicles require one or more post-install procedures such as theft-deterrent / security relearn, crankshaft variation learn, idle or throttle learn, transmission adaptive / fast learn, or module setup with a capable scan tool. Required relearns vary by vehicle, module type, and calibration. Our online catalog is an application guide, not an automatic fitment guarantee. Fitment is reviewed during programming, but the customer is responsible for confirming they are purchasing the correct part for their vehicle. Once programming, calibration retrieval, or supplier processing has started, related service costs may apply if the supplied vehicle or module information is incorrect.