Programmed To Your VIN Engine Computer PCM ECM ECU Fits 03-05 Impala 23237 Description This computer will be programmed to your vehicle prior to shipment, so please send a message with your vehicle's 17-digit VIN promptly after buying. After installation, the security relearn may be required before the vehicle will start. This takes 30 minutes with no special tools. Some vehicles may turn on the check engine light for crankshaft position sensor variation, which requires a relearn using a bidirectional scan tool. GM 12583827 Programmed to your VIN This part fits these models with these options: ALERO 03 Electronic Control Module; (LH center dash), 3.4L, ID 12583827 ALERO 04 Electronic Control Module; (LH center dash), 3.4L AZTEK 03 Electronic Control Module; (LH engine compartment), ID 12583827 AZTEK 04-05 Electronic Control Module; (LH engine compartment) BONNEVILLE 04-05 Electronic Control Module; (LH engine compartment), 3.8L CENTURY 03-05 Electronic Control Module; (LH engine compartment) GRAND AM 03 Electronic Control Module; (LH center dash), 3.4L, ID 12583827 GRAND AM 04-05 Electronic Control Module; (LH center dash), 3.4L GRAND PRIX 03 Electronic Control Module; (LH front engine compartment), 3.1L, ID 12583827 IMPALA 03 Electronic Control Module; (LH engine compartment), 3.4L, ID 12583827 IMPALA 04-05 Electronic Control Module; LESABRE 04-05 Electronic Control Module; (LH engine compartment) MALIBU 03 Electronic Control Module; (LH dash), ID 12583827 MONTANA 03-04 Electronic Control Module; (LH engine compartment) MONTANA 05 Electronic Control Module; (LH engine compartment), Base MONTE CARLO 03 Electronic Control Module; (LH engine compartment), 3.4L, ID 12583827 MONTE CARLO 04-05 Electronic Control Module; PARK AVENUE 04 Electronic Control Module; (LH front engine compartment), ID 12583827 PARK AVENUE 05 Electronic Control Module; (LH front engine compartment) RENDEZVOUS 03-05 Electronic Control Module; (LH engine compartment), ID 12583827 SILHOUETTE 03-04 Electronic Control Module; (LH engine compartment) VENTURE 03 Electronic Control Module; (LH engine compartment), ID 12583827 VENTURE 04-05 Electronic Control Module; (LH engine compartment) (if blank above, Hollander interchange is not available for this part) Refer to the interchange list above for fitment, as this site's compatibility chart is for search purposes only. Interchange may reference part number, VIN, build date, engine, sub-model, option codes, etc. Please compare details and pictures with your part, as there can be many different parts for the same year and model vehicle. If your vehicle is not a North American market vehicle, please do your own research on fitment. Part Detail Part Grade: Part Category: U Part Placement: Notes: GM 12583827 Programmed to your VIN Additional Notes: Interchange #: 590-05555 Inventory ID (R#): R23237 Donor Vehicle Year: 2005 Model: IMPALA Mileage: 0 (0 = unknown) Stock #: NOF Help Abbreviations - SW or WGN = station wagon; SDN = Sedan; CPE = coupe; HTBK = hatchback; 2DR = 2 Door; 4DR = 4 Door; HT = Hardtop; MT = manual transmission; AT = automatic transmission; W/ = with; W/O = without; OPT = option / option code; EXC = except (example: "EXC SW" or "EXCEPT WAGON" means that it will not fit a station wagon). Side - Always refer to left or right as if you are looking at the car from behind. Left = driver's side of a typical North American market vehicle. Right = passenger's side. L or LH = left; R or RH = right; LF = left front; RF = right front, LR = left rear, RR = right rear. Parts Grading. Some parts are graded automatically by our system according to mileage, age and/or damage. A Grade Highest quality. Low miles and/or exceptional condition for its age - does not necessarily mean 'like new' on a used part. B Grade Second level quality. Average miles and normal condition for its age. C Grade Third level quality. High miles and/or damage. (blank) Has not been graded. Part Color Definitions (**NOTE: We cannot guarantee an exact color match to your vehicle**) Amber AMB Beige BEI Black BLK Blue BLU Bronze BRZ Brown BRN Burgundy BRG Gold GLD Gray GRY Green GRN Maroon MRN Purple PUR Red RED Silver SIL Tan TAN Teal TEA White WHT Yellow YEL Guarantee Returns I guarantee the part to be as listed. Please examine photos carefully and compare with your original part before buying. If you are not 100% sure of the item's condition or whether or not this is the correct part for your vehicle, please ask me before buying. Mileage cannot be guaranteed, and may be estimated using an oil change sticker or vehicle history check. *Warranty: If the part fails within the warranty period, I will replace it with a functionally equivalent part or issue a refund. Warranty does not cover labor or any other losses directly or indirectly related to the part. No refunds greater than the original purchase price. Upgraded shipping costs will not be refunded. No warranty on items listed as a "core" or "for parts or not working". Modifications to the part, installation damage, improper installation, or use other than the manufacturer intended will void the warranty. If you have a problem with your purchase, please communicate the issue with as much detail as possible. Please include all vehicle details that may pertain to the part (VIN may also be needed). User-replaceable light bulbs fuses are not warrantied. Engines, transmissions, and other applicable mechanical parts require new oil/fluid and filters that are correct for the application. Gaskets, seals, belts, hoses, and thermostats are not warrantied and should be changed prior to installation. Low oil level or overheating voids warranty. Any accessories on engines are included for convenience only and are not warrantied. You may have to swap manifolds, sensors, injectors, wiring, water pumps, oil pans, etc. *Returns: On many items, I accept returns as a courtesy to my customers. Items must be returned in the same condition as received, not used or altered in any way. No returns if installed, bolted on, or plugged in. Original and return shipping will not be refunded. Please message me before returning an item or opening a return. Package well for safe transit, as refunds cannot be issued for returns that are damaged in return shipping. Please provide the tracking number of the return shipment. Our return address is: Rohner's Auto Parts, Inc. 1800 County Road 27 NW Willmar MN 56201 Shipping Double check your "Ship To" Address when paying, as that is where I am required to ship your order; no change of address in a message or "note to seller". No PO Box unless the stated shipping method is USPS. Items ship via whatever service I deem most appropriate and cost efficient (such as USPS, UPS, or FedEx). Alaska, Hawaii, Puerto Rico, APO, or FPO - If purchase is blocked, message me and I will check on shipping to you. Items to these locations are usually shipped via USPS. Outside the USA - Message me and I may be able to add the item to the Global Shipping Program. If your order arrives damaged, please send me a message, including photos of the damaged item and box. Do not dispose of the packaging or ship the item back until requested. I can refund or replace the damaged item if you comply with the damage claim process. Most items ship within 1 business day of cleared payment. We are closed on Wednesdays, so orders placed on Tuesday evening or Wednesday might not ship until Thursday. The tracking number will be provided. If it has been more than a week and your order has not yet been delivered, please check the tracking, and message me if it looks like it might be delayed or lost.