---
product_id: 4621542
title: "INNOVA 3123 GM OBD1 Code Reader, Windows XP"
brand: "innova"
price: "¥5326"
currency: JPY
in_stock: true
reviews_count: 12
category: "Innova"
url: https://www.desertcart.jp/products/4621542-innova-3123-gm-obd1-code-reader-windows-xp
store_origin: JP
region: Japan
---

# Multilingual instructions (EN/FR/ES) Real-time & stored code reading OBD1 connector compatibility INNOVA 3123 GM OBD1 Code Reader, Windows XP

**Brand:** innova
**Price:** ¥5326
**Availability:** ✅ In Stock

## Summary

> 🔧 Decode your GM’s secrets before they become problems!

## Quick Answers

- **What is this?** INNOVA 3123 GM OBD1 Code Reader, Windows XP by innova
- **How much does it cost?** ¥5326 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/4621542-innova-3123-gm-obd1-code-reader-windows-xp)

## Best For

- innova enthusiasts

## Why This Product

- Trusted innova brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safe for Your Ride:** Designed to never harm your vehicle’s computer system—professional-grade diagnostics without the risk.
- • **Real-Time Engine Insight:** Monitor your vehicle’s check engine light as it happens—catch intermittent issues before they escalate.
- • **Compact & Portable Powerhouse:** Lightweight and corded for reliable power—diagnose anywhere with ease and precision.
- • **Plug & Diagnose with Confidence:** Seamlessly connects to GM vehicles (1982-1995) for instant ECM & ABS code retrieval.
- • **Multilingual User-Friendly Guide:** Comes with clear, illustrated instructions in English, French, and Spanish—no guesswork, just results.

## Overview

The INNOVA 3123 GM OBD1 Code Reader is a professional diagnostic tool designed for GM cars and trucks from 1982 to 1995. It safely accesses engine and ABS codes via the vehicle’s self-test connector, providing real-time and stored trouble code data. Featuring multilingual instructions and a durable, corded design, it empowers users to quickly identify and address vehicle issues without risking computer damage.

## Description

The INNOVA GM Code Reader accesses the vehicle's on-board computer to retrieve engine and electronic transmission codes and ABS vehicle computer codes. It connects to the vehicle's computer self-test connector and shows the trouble through vehicle's "check engine" light. It includes detailed instructions in English, French, and Spanish with illustrations and code definitions applications.

Review: Well worth the money! - Nice book with lots of clear ENGLISH instructions and extra general info about how the computer works etc., and a full list of codes. Unit itself is professional looking high quality gear, you won't be embarrassed to use it. (Unlike how dirt-cheap some certain orange colored tools from a certain unnamed place can appear) I bought a '93 Lincoln Towncar, and it has an intermittent MIL. It's "EGR insufficient flow" so can be largely ignored. If a couple cans of Seafoam won't cure it in the next couple of weeks, I'll replace the $35 EGR valve and/or clean the carbon out of the manifold passageways. A note about the OBDI which is what these cars have: unlike 'modern' OBDII, the MIL operates in real time. (MIL = Malfunction Indicator Light or "check engine" light) With OBDII, if the MIL is triggered, it stays on for the most part. If it's a one time event, many start/stop cycles might turn it back off, but it usually needs to be cleared. With OBDI, the light may go back out, come back on, go back out as you drive. (It does in my case) The car's computer has a stored code area, which this tester has access to, so, you can see what's triggering the MIL as it happens, AND check the stored codes too. In my case, the codes just refer to the (probably intermittently sticking) EGR valve and nothing else, so the price paid for the code reader is worth the piece of mind at the very least. As for buying the extension cable, (or not) on the Towncar, the OBDI connector is on the driver's side fender, so I can prop the tester up and read it by leaning out the window during run-up testing. It depends on where your diagnostics port is as to whether you need the extension cable. You do need to see the display during real-time testing. If you're chasing an intermittent MIL, you'll need a cable to run under the hood and into a window so you can have the tester inside while you drive and have a friend watch the display.
Review: A great diagnostic tool for trouble shooting engine codes for early Ford trucks - Used this code reader on a 96 Ford F250 with 460 V8. It provided sevetal codes which enabled me to diagnose my ignition problems. A very useful tool and easy to use. You will have to connect it to the connector assembly which is under the hood on the right side of the vehicle below the hood spring.

## Features

- Safely accesses the on-board computer to read ECM and ABS codes
- Works on most General Motors domestic cars and trucks from 1982 to 1995
- Connects to your vehicle's computer self-test connector
- Will not harm the vehicle's computer system
- Includes instructions in English, French and Spanish
- This item does not read codes on diesel, Cadillac, Geo, Nova, and Sprint vehicles

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000EVU8C0 |
| Best Sellers Rank | #4,687 in Automotive ( See Top 100 in Automotive ) #40 in Code Readers & Scan Tools |
| Brand | Innova |
| Customer Reviews | 4.3 4.3 out of 5 stars (6,758) |
| Date First Available | April 28, 2005 |
| Global Trade Identification Number | 00042173031238 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8 ounces |
| Item model number | 3123 |
| Manufacturer | Innova |
| Manufacturer Part Number | 3123 |
| Model | 3123 |
| OEM Part Number | 3123 |
| Operating System | Windows XP |
| Power Source | Corded Electric |
| Product Dimensions | 10 x 2 x 6 inches |
| UPC | 042173031238 |

## Product Details

- **Brand:** Innova
- **Global Trade Identification Number:** 00042173031238
- **Operating System:** Windows XP
- **Power Source:** Corded Electric
- **UPC:** 042173031238

## Images

![INNOVA 3123 GM OBD1 Code Reader, Windows XP - Image 1](https://m.media-amazon.com/images/I/61g6gDV24RL.jpg)
![INNOVA 3123 GM OBD1 Code Reader, Windows XP - Image 2](https://m.media-amazon.com/images/I/713RoArqOdL.jpg)
![INNOVA 3123 GM OBD1 Code Reader, Windows XP - Image 3](https://m.media-amazon.com/images/I/71C-Vdam9PL.jpg)
![INNOVA 3123 GM OBD1 Code Reader, Windows XP - Image 4](https://m.media-amazon.com/images/I/71tIM-I9pGL.jpg)
![INNOVA 3123 GM OBD1 Code Reader, Windows XP - Image 5](https://m.media-amazon.com/images/I/81PXmg8jbtL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**Q: Is this Bluetooth??**
A: Thank you for your question. No, the 3123 is not Bluetooth.

**Q: It does suppot my car model : opel astra f 1992 1.4si engine code: c14se, 10 pin daignostic contener ??**
A: Thank you for your inquiry. The vehicle you are referring to was built for a foreign market and cannot be read by our tools.

**Q: Will it turn off the check engine light?**
A: When dealing with an OBD 1 car, the 3123 will not turn off the check engine light. Disconnecting the battery for a few minutes, up to 15 minutes in some cases, will clear the codes. However, if the problems were not fixed, they will come back and set the service engine soon light.

**Q: so where does it show the codes at? I have an OBD2 that is right on the reader, this one doesnt have a screen, and will it work on a 96 chevy silverad**
A: Thank you for your question. No, the 3123 will not work with a 1996 Chevy. The 3123 scan tool only works with most 1981 to 1995 vehicles. 1996 and newer vehicles use OBD2 scan tools.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well worth the money!
*by C***. on March 16, 2016*

Nice book with lots of clear ENGLISH instructions and extra general info about how the computer works etc., and a full list of codes. Unit itself is professional looking high quality gear, you won't be embarrassed to use it. (Unlike how dirt-cheap some certain orange colored tools from a certain unnamed place can appear) I bought a '93 Lincoln Towncar, and it has an intermittent MIL. It's "EGR insufficient flow" so can be largely ignored. If a couple cans of Seafoam won't cure it in the next couple of weeks, I'll replace the $35 EGR valve and/or clean the carbon out of the manifold passageways. A note about the OBDI which is what these cars have: unlike 'modern' OBDII, the MIL operates in real time. (MIL = Malfunction Indicator Light or "check engine" light) With OBDII, if the MIL is triggered, it stays on for the most part. If it's a one time event, many start/stop cycles might turn it back off, but it usually needs to be cleared. With OBDI, the light may go back out, come back on, go back out as you drive. (It does in my case) The car's computer has a stored code area, which this tester has access to, so, you can see what's triggering the MIL as it happens, AND check the stored codes too. In my case, the codes just refer to the (probably intermittently sticking) EGR valve and nothing else, so the price paid for the code reader is worth the piece of mind at the very least. As for buying the extension cable, (or not) on the Towncar, the OBDI connector is on the driver's side fender, so I can prop the tester up and read it by leaning out the window during run-up testing. It depends on where your diagnostics port is as to whether you need the extension cable. You do need to see the display during real-time testing. If you're chasing an intermittent MIL, you'll need a cable to run under the hood and into a window so you can have the tester inside while you drive and have a friend watch the display.

### ⭐⭐⭐⭐⭐ A great diagnostic tool for trouble shooting engine codes for early Ford trucks
*by H***E on October 15, 2025*

Used this code reader on a 96 Ford F250 with 460 V8. It provided sevetal codes which enabled me to diagnose my ignition problems. A very useful tool and easy to use. You will have to connect it to the connector assembly which is under the hood on the right side of the vehicle below the hood spring.

### ⭐⭐⭐⭐⭐ Nice tool 94 mustang gt
*by S***E on November 28, 2025*

Worked great now on my 94 mustang gt. Now I have to order a new distributor due to my pip failing on me.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*