OBD ll Scanner
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 5,808
Likes: 1
From: Sierra Foothills California
OBD ll Scanner
So I bought a code reader (just in case I need one) I've bought and returned an Autel 419, and an Actron CP9550. All would link to my Mazda, and GMC, but neither would "link" to my 2000 C5. Harbor Freight has a Cen-Tech 60693 on sale which looks just like the Autel. Bought it and same deal, won't link to the 'Vette. I understand I can read the codes on the DIC without using a code reader but I'm curious as to why it won't work on the 'Vette? Any ideas appreciated 
Instructor
Joined: Jun 2010
Posts: 228
Likes: 2
From: California
"That capability disappeared on the C6 and now C7."
Wow I didn't know that. I just thought all Vette's read thier own codes.
My 07 Harley (and of course all newer ones) read their own codes also. It even tells
you what part number you need to repair it!
Wow I didn't know that. I just thought all Vette's read thier own codes.
My 07 Harley (and of course all newer ones) read their own codes also. It even tells
you what part number you need to repair it!
Melting Slicks
Joined: Feb 2001
Posts: 2,801
Likes: 356
From: Northville, MI
What you want to invest in is either a code reader with GM enhanced codes or a real OBD 2 scanner that will also upload and scan all associated pids. The first will tell you of problems that have occurred and the latter will do that and can help you address potential problems before they occur. Some of the true scan/log systems are handheld, some are software driven (requires PC) and some have both capabilities. If you plan on investing in a true scan/log system, the better ones generally have bi-directional controls.
Le Mans Master
Joined: Mar 2011
Posts: 6,835
Likes: 302
From: Columbia SC
Here is a Thread link on how to pull your own codes on the C5, I think it is post #3. That is what makes the C5 unique/nice versus the C6 or C7. Precludes having to pay over $3000 to get a Tech II to pull your own codes. Normal OBD II code readers will only pull PCM/engine related codes and not the other hundred or so codes.
http://forums.corvetteforum.com/c5-g...m-failure.html
http://forums.corvetteforum.com/c5-g...m-failure.html
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 5,808
Likes: 1
From: Sierra Foothills California
Thanks for the link. I've read the (H) history codes displayed on the DIC before. I'm wondering why I'm unable to get my new scanner to "talk" to the Corvette. I have an email into Harbor Freight. Maybe they can answer my question. 
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
There are several reasons why a Code reader wont work on your car. Just so you know,,, Its suppose to and should. I use thst same actron on mine and it works flawlessly.
You either have:
A blown OBD2 Fuse
OR
A bad OBD2 connector. The female pins frequently get bent beyond being able to connect to any scanner.
Power comes from
Instrument Panel Fuse Center, Mini Fuse# 29, C/LALDL, 10 amps off of pin 16 in the connector
Ground in that connector is pin #4
Examine the pins and make sure that they are not deformed and spread apart. A damaged ALDL OBD2 port will cause you to fail emissions also because the emissions computer will link up properly also.
Bill
Here is the schematics for the OBD2 port:
Serial Data
You either have:
A blown OBD2 Fuse
OR
A bad OBD2 connector. The female pins frequently get bent beyond being able to connect to any scanner.
Power comes from
Instrument Panel Fuse Center, Mini Fuse# 29, C/LALDL, 10 amps off of pin 16 in the connector
Ground in that connector is pin #4
Examine the pins and make sure that they are not deformed and spread apart. A damaged ALDL OBD2 port will cause you to fail emissions also because the emissions computer will link up properly also.
Bill
Here is the schematics for the OBD2 port:
Serial Data
Last edited by Bill Curlee; Jan 1, 2014 at 10:04 PM.
Thread Starter
Le Mans Master
Joined: Aug 2000
Posts: 5,808
Likes: 1
From: Sierra Foothills California
Thanks for the tips! I assumed since the scanner illuminated and went through a complete module check (until the end) all was good with power. I'll check the pins tomorrow.
Cheers
Cheers
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Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Almost forgot..... You need to purchase a spare male pin the same size (thickness) as the male pin that gets inserted in the female pin.
When you insert that male pin into the female pin, there should be a felt resistance during insertion and extraction. (sound sexual doesn't it)
If you don't feel force when you remove and install the pin, the female pin is bad. You can adjust some female pins to make better connection by bending the toung that makes contact with the male pin.
NAPA normaly has a very good pin selection
BC
When you insert that male pin into the female pin, there should be a felt resistance during insertion and extraction. (sound sexual doesn't it)
If you don't feel force when you remove and install the pin, the female pin is bad. You can adjust some female pins to make better connection by bending the toung that makes contact with the male pin.
NAPA normaly has a very good pin selection
BC
Last edited by Bill Curlee; Jan 2, 2014 at 12:38 AM.