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This code reader accesses a vehicle's on-board computer to retrieve engine and electronic transmission codes and ABS vehicle computer codes. It connects to your vehicle's computer self-test connector and shows the trouble through your vehicle's "check engine" light. It includes detailed instructions in English, French, and Spanish with illustrations and code definitions applications.
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Technical Details
- Diagnostic trouble codes flash on the dashboard's "check engine" light- Retrieves ECM and ABS vehicle computer codes
- Connects to your vehicle's computer self-test connector
- Includes instructions in English, French and Spanish
- Will not harm a vehicle's computer system
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By M. Rene de Cotret (Salem,Oregon)
I have a 1994 1/2 ton c1500 Chevrolet Pickup with a 6.5L diesel engine. I only found out after reading in the manual that it won't work on diesel engine. That was not said in the descriptionon Amazon website.
By W. Edel (AZ United States)
This product is inexpensive and does the basic job its intended. if you are a weekend mechanic on older vehicles it works fine. Nothing fancy, just works.
By turkinwisconsin (Milwaukee, WI USA)
I would like to see if it works on Geo Prizms. Geo Prizm is made by NUMMI (GM and Toyota joint venture). Any ideas?
By J. Sterling
I use it on my 1987 IROC Camaro which has two methods of diagnosing the Engine lights. One is a jumper cable, the other is using a tool such as this. All I have to do is pop it in, turn the key to ON, and read the codes. Very simple, very light, does not require a degree to use. The booklet that comes with it has a list of codes, their descriptions, and how to start collect the codes from the ECU. However, any GM car repair manual will/should have the same list. It is cheap, and it does what I need it to do.
By Gerald M. Coffee (Dallas, Texas)
This product is handy to have to locate a source of a "Service Engine Soon" light. It merely grounds the ECM engine pin or the ABS brake pin which are located in the diagonsitc port under the dash and causes the SES light to flash the ECM codes. A paper clip can do the same thing but the GM Code Reader is better because it a accurate and positive fit. The GM Code Reader will only indicate the ECM code and will not tell you anything else after the SES light is seen. Then you must determine what is causing the code to appear. This product is a OBD-1 Code Reader for 1982-1993/4 vehicles and is not the OBD-2 Code Scanner that must be used on the 1995 and later vehicles. The latter has a screen and gives more information with the code. Using the GM Code Reader is a fifteen minute job and gives you a good starting point for locating the trouble and saves you $90 or more by not requiring a so-called "professional" auto mechanic do it for you. It will more than pay for itself after you use it one time.
The first code I observed when I first used the GM Code Reader on my 1991 Chevrolet S10 Blazer SUV was the infamous Code 32, a EGR system malfunction. It apparently was a false code or a temporary code because I did not do or replace anything to correct the problem and the "SES" light has never returned.
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