I am looking for a scan tool. I guess what I'm asking for is the basics. All I know is what OBD/OBD II is. What is protocol?

I want to be able to do the basic diagnostic. This is for entry level/home shop.

Is there such a scan tool that handles both OBD I and II?

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'85 300SD (formerly california emissions)
'08 Chevy Tahoe
'93 Ducati 900 SS
'79 Kawasaki KZ 650
'86 Kawasaki KX 250
'88 Kawasaki KDX200
'71 Hodaka Ace 100
'72 Triumph T100R

Item Number: OBD2QS
Main Category: TOOL
Sub Category:
Description: OBDII Reader
Manufacturer: BAUM
http://catalog.peachparts.com/item.wws?qty=1&mfr=BAUM&sku=OBD2QS&price=39.00&cookieID=20900B2DI20900BQDX





Have a great day.

__________________
ASE Master Mechanic
asemastermechanic@juno.com

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

There are any number of products on the market at all levels. If you want a handheld unit, the Baum might be one of the few choices that will do both. Companies like EASE diagnostics sell cables and software to be used with a handheld or laptop computer that can do both.

To me, on OBDI cars a scanner is almost always unnecessary. Depending on the vehicle, you can draw a code with something as simple as a paperclip to short a few pins on the connector under the dash, turn on the key and observe the flashing codes of the Check Engine light. Most any OBDI car has a simple way to draw the code if you will do just a little research.