 - Retrieves diagnostic trouble codes from your vehicle's computer to help diagnose problems
- Reads check engine light warnings on 1996 and newer vehicles through any OBDII protocol, including CAN (Controller Area Network)
- Features built-in memory to store codes, even when reader is unplugged
- Automatic refresh updates data every 30 seconds when connected to the vehicle
- Unique patented all-in-one screen display and LED display
List Price: $192.09
Lowest Price: $88.99 
Product Description: Reads and clears system codes on all OBD II (1996 and newer) vehicles. Reads diagnostic trouble codes (DTCs), Generic Engine Codes (POs), MFG and Spenitic Emission Codes (PIs). Great tool features one easy to use graphic LCD display. Automatically links to all protocols. Comes with 6ft. removable and serviceable data link connector cable. Amazon.com: The Equus 3100 Innova Diagnostic Code Reader offers an easy, effective way to troubleshoot OBD II vehicles. This powerful and rugged tool quickly reveals the cause of "Check Engine" light warnings on any 1996 and newer car, light truck, or SUV--foreign and domestic. Compare all Equus scan tools. 
Diagnose trouble codes in a snap. See product details. | The tool features a unique, patented all-in-one screen display and an LED display for quick emissions status checks. Meanwhile, the 3100's automatic refresh updates data every 30 seconds when connected to the vehicle, offering an easy way to verify repair completion. The tool communicates with all OBD II protocols, including CAN (Controller Area Network). An internal battery stores the latest test results for later review and analysis, and to accommodate future vehicles, the tool is fully upgradeable via a standard Windows-based PC. Equus' OBD-PC Link software is included with the tool, making upgrades a snap.
Manufacturer Warranty
One-year limited warranty. Customer Reviews: Rating: 
Date: 2008-06-10
Paid for itself right away
I purchased this for my husband and within the first 2 times he used it the item paid for itself! My Dad also used it and was happy he did because he would have bought the wrong part because he thought the problem was something else. It is a nice diagnostic tool and worth the money. Rating: 
Date: 2008-05-20
Gets the job done
Purchased this to check code that was suspect instead of going to dealer. Saved myself the cost of dealer (several hundred dollars) which paid for this unit many times over. Only issue is it erases code from unit as well as vehicle. Rating:
Date: 2008-05-14
Money saver
Great little item that basically paid for itself in the first use. Service engine light was on. Plugged the 3100 OBD2 unit in, got an emissions error code. Printed the report. Looked up the code and found a listing of potential problems. The most common listed was a faulty gas cap. Replaceed the gas cap. The engine light went off. Figured I saved $65-80 for the diagnostics plus some for a mechanic to tell me it was something else. Rating:
Date: 2008-05-03
Equus 3100 Code Reader
Equus 3100 Innova Diagnostic Code Reader with Memory Backup for OBDII (Post-1996) Vehicles I bought this diagnostic code reader to check on my wife's car check engine light. I found a little difficulty understanding the owner's manual, but nothing worse than any manual I have gotten with items lately. The hardest part in using the device was finding the place to plug it in the car,which is not the fault of Eqqus. The reader arrived at its conclusion quickly and let me know what had triggered the light. Hopefully I will not need this machine very often, but I am glad to have it handy. Rating:
Date: 2008-04-22
Equus 3100 Innova Diagnostic Code Reader
For the money this item was a great time and money saver. I would buy it again with no hesitation. | 
