Description
Compatible: 1987, 1988, 1989, 1990, 1991 General Motors
OEM Part Number: 1227747
Looking for a replacement 1227747 ECU?
We can help!
Our rebuilt & tested replacement engine control unit (ECU) includes with a 2-year warranty.
PLEASE NOTE: This ECU may not include a PROM chip.
You must remove your old PROM chip using the access door in the ECU and install it into the replacement ECU otherwise the unit may not work in your vehicle.
Details:
Units typically ship out within 4 to 5 business days via priority mail.
Our refurbished & tested, OEM pre-owned unit will include a hassle free 2-year warranty.
Part numbers are important, be sure to order a replacement that matches your original part number.
No core charge – no need to send in your original unit.
Supplies may be limited.
“Do I need programming?”
This plug and play unit will not require any additional programming after you install your original PROM chip from your old ECU.
Your original keys will start the vehicle.
Technician’s Notes:
Some common symptoms of a bad ECU include:
- Rough idle
- Cylinder misfire
- Poor acceleration
- Not found via OBD
- A/C no longer functions
- Failure or difficult to start
- Fault codes that will not clear
- Transmission shifting problems
Other acronyms for the Engine Computer: ECU Engine Control Unit – ECM Engine Control Module – BCM Body Control Module – PCM Power Control Module
OEM Meaning: Original Equipment Manufacturer – our units are factory original units.
We understand for some, a vehicle is part of the family. Our mission is to get your vehicle back on the road by offering quick and cost-effective solutions.
If you have any questions about this unit or anything else, please do not hesitate to reach out to us!
Additional information
Fits: | 1987, 1988, 1989, 1990, 1991 General Motors |
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Part Number | 1227747 |
Reviews
"Thank you to the staff at Module Mechanics. The backlight stopped working on my Acura, and I could no longer see the odometer information. You guys did a fantastic job repairing my odometer. I definitely would use your services again in the..." Read more

Ernest Laster
"I purchased a Remanufactured Body Control Module for my 2007 Chevy Colorado! It arrived when they said it would. I did experience trouble Learning the key and had to contact their Customer Service and they guided me through the process and..." Read more

Dave Hylton
"Repaired the instrument cluster on my Avalanche. 1 day turn around time and works great!"

Rob Fekete
"These people are awesome! Great communication and fast turnaround. I got my bcm back in just 5 days. Saved me a lot of money and time. Highly recommended! AAA+++ Thanks again guys!"

Vincent Piasecki
Our mission is providing unique and cost saving solutions to combat the automotive industries problematic electronic issues, keeping you in your car, not your wallet.
CONTACT US
Sales:
Email: info@modulemechanics.com
Phone: 1 (800) 571-3424
Support & Claims:
Email: support@modulemechanics.com
Our Shipping Address:
Module Mechanics
6732 W. Coal Mine Ave
STE 511
Littleton, CO 80123
Hours of Operation:
Mon – Fri: 9am – 6pm MT
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Module Mechanics 6732 W. Coal Mine Ave STE 511 Littleton, CO 80123
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Module Mechanics
Accessibility Statement
- modulemechanics.com
- 04/28/2025
Compliance status
We firmly believe that the internet should be available and accessible to anyone, and are committed to providing a website that is accessible to the widest possible audience, regardless of circumstance and ability.
To fulfill this, we aim to adhere as strictly as possible to the World Wide Web Consortium’s (W3C) Web Content Accessibility Guidelines 2.1 (WCAG 2.1) at the AA level. These guidelines explain how to make web content accessible to people with a wide array of disabilities. Complying with those guidelines helps us ensure that the website is accessible to all people: blind people, people with motor impairments, visual impairment, cognitive disabilities, and more.
This website utilizes various technologies that are meant to make it as accessible as possible at all times. We utilize an accessibility interface that allows persons with specific disabilities to adjust the website’s UI (user interface) and design it to their personal needs.
Additionally, the website utilizes an AI-based application that runs in the background and optimizes its accessibility level constantly. This application remediates the website’s HTML, adapts Its functionality and behavior for screen-readers used by the blind users, and for keyboard functions used by individuals with motor impairments.
If you’ve found a malfunction or have ideas for improvement, we’ll be happy to hear from you. You can reach out to the website’s operators by using the following email
Screen-reader and keyboard navigation
Our website implements the ARIA attributes (Accessible Rich Internet Applications) technique, alongside various different behavioral changes, to ensure blind users visiting with screen-readers are able to read, comprehend, and enjoy the website’s functions. As soon as a user with a screen-reader enters your site, they immediately receive a prompt to enter the Screen-Reader Profile so they can browse and operate your site effectively. Here’s how our website covers some of the most important screen-reader requirements, alongside console screenshots of code examples:
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Screen-reader optimization: we run a background process that learns the website’s components from top to bottom, to ensure ongoing compliance even when updating the website. In this process, we provide screen-readers with meaningful data using the ARIA set of attributes. For example, we provide accurate form labels; descriptions for actionable icons (social media icons, search icons, cart icons, etc.); validation guidance for form inputs; element roles such as buttons, menus, modal dialogues (popups), and others. Additionally, the background process scans all of the website’s images and provides an accurate and meaningful image-object-recognition-based description as an ALT (alternate text) tag for images that are not described. It will also extract texts that are embedded within the image, using an OCR (optical character recognition) technology. To turn on screen-reader adjustments at any time, users need only to press the Alt+1 keyboard combination. Screen-reader users also get automatic announcements to turn the Screen-reader mode on as soon as they enter the website.
These adjustments are compatible with all popular screen readers, including JAWS and NVDA.
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Keyboard navigation optimization: The background process also adjusts the website’s HTML, and adds various behaviors using JavaScript code to make the website operable by the keyboard. This includes the ability to navigate the website using the Tab and Shift+Tab keys, operate dropdowns with the arrow keys, close them with Esc, trigger buttons and links using the Enter key, navigate between radio and checkbox elements using the arrow keys, and fill them in with the Spacebar or Enter key.Additionally, keyboard users will find quick-navigation and content-skip menus, available at any time by clicking Alt+1, or as the first elements of the site while navigating with the keyboard. The background process also handles triggered popups by moving the keyboard focus towards them as soon as they appear, and not allow the focus drift outside of it.
Users can also use shortcuts such as “M” (menus), “H” (headings), “F” (forms), “B” (buttons), and “G” (graphics) to jump to specific elements.
Disability profiles supported in our website
- Epilepsy Safe Mode: this profile enables people with epilepsy to use the website safely by eliminating the risk of seizures that result from flashing or blinking animations and risky color combinations.
- Visually Impaired Mode: this mode adjusts the website for the convenience of users with visual impairments such as Degrading Eyesight, Tunnel Vision, Cataract, Glaucoma, and others.
- Cognitive Disability Mode: this mode provides different assistive options to help users with cognitive impairments such as Dyslexia, Autism, CVA, and others, to focus on the essential elements of the website more easily.
- ADHD Friendly Mode: this mode helps users with ADHD and Neurodevelopmental disorders to read, browse, and focus on the main website elements more easily while significantly reducing distractions.
- Blindness Mode: this mode configures the website to be compatible with screen-readers such as JAWS, NVDA, VoiceOver, and TalkBack. A screen-reader is software for blind users that is installed on a computer and smartphone, and websites must be compatible with it.
- Keyboard Navigation Profile (Motor-Impaired): this profile enables motor-impaired persons to operate the website using the keyboard Tab, Shift+Tab, and the Enter keys. Users can also use shortcuts such as “M” (menus), “H” (headings), “F” (forms), “B” (buttons), and “G” (graphics) to jump to specific elements.
Additional UI, design, and readability adjustments
- Font adjustments – users, can increase and decrease its size, change its family (type), adjust the spacing, alignment, line height, and more.
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- Animations – epileptic users can stop all running animations with the click of a button. Animations controlled by the interface include videos, GIFs, and CSS flashing transitions.
- Content highlighting – users can choose to emphasize important elements such as links and titles. They can also choose to highlight focused or hovered elements only.
- Audio muting – users with hearing devices may experience headaches or other issues due to automatic audio playing. This option lets users mute the entire website instantly.
- Cognitive disorders – we utilize a search engine that is linked to Wikipedia and Wiktionary, allowing people with cognitive disorders to decipher meanings of phrases, initials, slang, and others.
- Additional functions – we provide users the option to change cursor color and size, use a printing mode, enable a virtual keyboard, and many other functions.
Browser and assistive technology compatibility
We aim to support the widest array of browsers and assistive technologies as possible, so our users can choose the best fitting tools for them, with as few limitations as possible. Therefore, we have worked very hard to be able to support all major systems that comprise over 95% of the user market share including Google Chrome, Mozilla Firefox, Apple Safari, Opera and Microsoft Edge, JAWS and NVDA (screen readers), both for Windows and for MAC users.
Notes, comments, and feedback
Despite our very best efforts to allow anybody to adjust the website to their needs, there may still be pages or sections that are not fully accessible, are in the process of becoming accessible, or are lacking an adequate technological solution to make them accessible. Still, we are continually improving our accessibility, adding, updating and improving its options and features, and developing and adopting new technologies. All this is meant to reach the optimal level of accessibility, following technological advancements. For any assistance, please reach out to
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"I’ve been chasing transmission problems in my 97 7.3 forever and finally found out it was the PSOM. I found these guys online and they were great! Affordable prices, extremely fast turnaround time, and all around seem professional. I also r..." Read more