Average Reviews:
(More customer reviews)There are many programs out there that expect to use a particular OBD II connection design. This cable provides it. When my 2003 Chevy Venture van's "service engine soon" light came on, I had no way to find out what was wrong save a very long drive to someone who would charge much more than this to tell me. So I ordered it.
It worked right off, telling me of a minor problem (somewhat flakey coolant thermostat) - an easy fix.
Regarding complaints that the LEDs face down - the label peels off easily, exposing four screws. Removing them lets you pop the top off, rotate the OBD II connector and reassemble. Then they will face up for you.
As far as the LEDs - you don't ever need them anyway. And there's no documentation as to their function. But if you want to know, they are (left to right):
Yellow - OBD II TX
Green - OBD II RX
Yellow - RS-232 TX
Green - RS-232 RX
Red- Power
The TX/RX pairs flash when data is being transferred between the cable's microprocessor and the vehicle (OBD II) or your computer (RS-232). The Power LED lights when the cable has power, either from your USB port or from the vehicle's OBD II connector.
So it does what it claims, it is as future-proof as you could ask (all the software runs on your PC and can be upgraded), it's inexpensive, it's small. Pretty hard to beat!
Jim Horn, Electrical Engineer for 34 years
Click Here to see more reviews about: Crescent USB OBD2/EOBD Multi-Protocol Car Diagnostic Tool Auto Scanner
The included CD's menu system makes it easy to install the cable's driver and OBD-II Software which allows you to use your PC and the hardware interface to get the information from your car's computer. The program is very user-friendly, and easy to learn. The package includes software for reading and resetting codes. Also included is Gnet's DigitalDash 5, a front end software for a CarPC that includes OBD functionality when the device is connected to your carpc. Several 3rd party commercial demo programs are also included to allow you to explore other software available. The Crescent USB Car Diagnostic Auto Scanner is truly a versatile device! The Crescent USB Car Diagnostic Auto Scanner supports all OBD-II protocols listed below. The processor is compatible with the AT command set for the widest compatibility with freeware and commercial programs written for the ELM series of interface chips from Elm Electronics. The connection to the computer is USB via a built in USB to serial converter. Protocols supported: SAE J1850 PWM (41.6 kbaud), SAE J1850 VPW (10.4 kbaud), ISO 9141-2 (5 baud init, 10.4 kbaud), ISO 14230-4 KWP (5 baud init, 10.4 kbaud), ISO 14230-4 KWP (fast init, 10.4 kbaud), ISO 15765-4 CAN (11 bit ID, 500 kbaud), ISO 15765-4 CAN (29 bit ID, 500 kbaud), ISO 15765-4 CAN (11 bit ID, 250 kbaud), ISO 15765-4 CAN (29 bit ID, 250 kbaud), ISO 15765-4 CAN (29/11bit ID, arbitrary baudrate), SAE J1939
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