Is it absolutely nessicary...

[FTA1995]

To scan the OBDI 95 (with the OBDII connector) with a tech 1 or tech 2?

I haven't found anything except for that, given I only looked so hard so far....

[Rob B (shoebox)]

There are all kinds of scanners (Autoxray, Actron, etc.)out there that will work. You are not limited to the Tech.
Anything that will scan OBD-I will work (with the right adapter cable).

[Injuneer]

Why not use free OBD-I scanning/data logging software? All you need it a cable and a laptop.

TTS DataMaster (first 20 uses free):
http://www.ttspowersystems.com/

FreeScan (unlimited free use):
http://www.andywhittaker.com/

EFILive V4 (not free):
http://www.efilive.com

Cable (they make one spcifically for the 95):
http://www.akmcables.com/

The only OBD-I scan software I would avoid would be the ancient DOS-based Diacom.

If you do use a hardware scanner, Shoebox also explains how to connect it to the 1995's OBD-II "style" 16-pin ALDL connector, if the scanner does not come with an adapter plug:

http://shbox.com/1/xraycable.jpg

For real-time, bright LED display of about 20 PCM parameters, including trouble codes, consider the ScanMaster LT1, which only requires 12V power, ground and a single wire connection to the ALDL:



Detailed description:

http://www.injuneer.com/ScanMast.html

[FTA1995]

These will grab ABS codes?

I couldn't seem to find that as an option on anything I have...

[Injuneer]

Air bags, traction control, ABS, BCM are not integrated with the PCM. These systems are PCM only. I didn't realize you were asking about ABS codes. In that case, neither Shoebox's response or mine are correct. Ignore.

[FTA1995]

My fault, missed that in the original message.
Any ideas now?
I really think its a wheel speed sensor, and even though I will be replacing both from wheel bearing assemblys soon, I want to make sure it isnt a problem otherwise(e.g., faulty ABS controller, faulty solenoid(s), and open circuit and anything of the matter).

Thanks guys!

[Rob B (shoebox)]

It takes a much more expensive scanner to get ABS codes. Most of the low dollar ones readily available don't to that. You may just want to get the codes read at a shop.

[FTA1995]

OK, thanks Rob!

[Injuneer]

I just saw an add for a "lower cost" code reader for the EBTCM module. About $250. It might have been Actron.... not sure. I'lll see if I can find the ad in my recent magazines. Not cheap, but a lot less expensive than a Tech-series unit.

[FTA1995]

yea no kidding,
I'll probably need it in the future anyways, i mgiht get one.

[99Firebird3800]

If you're OBD-I, there were some scanners that were dirt cheap that would read ABS codes, basically by causing the ABS light to blink in a certain pattern - which would tell you the code(s). It would do the same for engine codes, and where applicable, 4x4 codes. I know this because my FIL has one, and I've used it on my old '95 GMC. It's how I know I have a bad passenger front wheel speed sensor, but I really don't care because the bearing is just peachy. It also told me I have a questionable EGR valve, but for some reason that's a $100 item and I don't feel like dropping that on this truck.

[Injuneer]

93 was the last year F-Body you could flash the codes by shorting the ALDL pins.

The Actron scanner I read abouot is only for OBD-II:

http://www.actron.com/product_detail.php?pid=16349