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Equus 3123 GM Code Reader | 
 enlarge | Brand: Equus
List Price: $30.43
Buy New: $19.99
You Save: $10.44 (34%)
New (8) from $19.99
Rating:  4 reviews
Sales Rank: 480
Media: Misc.
Shipping Weight (lbs): 0.7
Dimensions (in): 10 x 2 x 6
MPN: 3123
Model: 3123
UPC: 042173031238
EAN: 0042173031238
ASIN: B000EVU8C0
Shipping: Eligible for Super Saver Shipping
Availability: Usually ships in 24 hours
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| Features:
| • | 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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Product Description
• For most General Motors vehicles (domestic cars & trucks) from 1982 to 1995 • Safely accesses the on-board computer to read ECM and ABS codes • Trouble codes flash on Malfunction Indicator Lamp (dashboard "Check Engine" or ABS light) • Instructions include GM OBD I system operation, code retrieval processes and code definitions APPLICATIONS - ECM / PCM Codes The 3123 can retrieve diagnostic trouble codes from the following General Motors vehicles. Make Model Years Covered Models Codes Retrieved BUICK 1982 - 1993 * Century, Electra, Electra Wagon, Estate Wagon, Le Sabre, Le Sabre Wagon, Park Avenue, Reatta, Regal, Grand National, Riviera, Roadmaster, Skyhawk, Skylark, Somerset ECM / PCM BUICK 1994 * Roadmaster 1.7 Liter ECM / PCM CHEVROLET 1982 - 1993 * Beretta, Camaro, Caprice, Cavalier, Celebrity, Chevette, Citation, Corsica, Corvette, El Camino, Impala, Lumina, Monte Carlo ECM / PCM CHEVROLET 1994 * Camaro 3.4 Liter, Camaro 5.7 Liter, Caprice 5.7 Liter, Cavalier 3.1 Liter, Lumina 3.1 Liter ECM / PCM CHEVROLET 1995 * Caprice 4.3 Liter ECM / PCM OLDSMOBILE 1982 - 1993 * Achieva, Calais, Custom Cruiser, Cutlass Calais, Ciera, Cutlass Cruiser, Cruiser Wagon, Cutlass Supreme, Supreme Classic, Delta 88, Eighty-Eight, Firenza, Ninety-Eight, Omega, Tornado, Touring Sedan, Trofeo ECM / PCM PONTIAC 1982 - 1993 * 6000, 6000STE, Bonneville, Fiero, Firebird, Grand Am, Grand Prix, 12000, Lemans, Parisienne, Phoenix, Safari, Safari Wagon, Sunbird, T1000 ECM / PCM PONTIAC 1994 * Firebird 3.4 Liter, Firebird 5.7 Liter, Sunbird 2.0 Liter, Sunbird 3.1 Liter ECM / PCM SATURN 1982 - 1995 All models ECM / PCM GM Trucks & Vans 1982 - 1995 All one ton capacity or less(EXCEPT 1995 "S", "T" and "U" series) ECM / PCM * Not applicable to vehicles with climate control computers. APPLICATIONS - ABS Codes The 3123 can retrieve ABS (Anti-Lock Brake System) codes from the following General Motors vehicles. Make Covered Models /
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| Customer Reviews:
 works and cheap.. November 23, 2008
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.
 Does not work on Geo Prizms? July 20, 2008
turkinwisconsin (Milwaukee, WI USA)
0 out of 2 found this review helpful
I would like to see if it works on Geo Prizms. Geo Prizm is made by NUMMI (GM and Toyota joint venture). Any ideas?
 Easy to use reader. July 11, 2008
J. Sterling
3 out of 4 found this review helpful
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.
Nice gadget May 12, 2008
Gerald M. Coffee (Dallas, Texas)
2 out of 3 found this review helpful
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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