Service ABS - ZR-1 Net Registry Forums

Mr Blue · 10-07-2019

I am getting a Service ABS light on the DIC. Is there an easy way to download codes for the ABS system?

Thanks
David

TX '90 ZR1 · 10-07-2019

There is a lot of info in the "stickies" by Dynomite.
Also, here's an article by Hib.
https://www.corvetteactioncenter.com...abs/index.html

We Gone · 10-07-2019

I just went thru this on a 93 that article gave me a great understanding of how it works. I was able to get the codes thur the on board diagnostic.

But I also have a scanner that reads ABS/ASR had DTC 63,64,72. Went to the FSM and found all the plugs to the modules. I unplugged all and plugged even the relays at the pump. removed and cleaned the ABS fuse. than cleared the codes and all was good. I think 72 (Serial data Link) was the main culprit.

tccrab · 10-07-2019

You'll need a TechOne to read and reset the ABS Code.
I had an ABS Relay fail causing ABS code 63.
Turns out, the relay is practically unobtanium.
The few I found were stupid expensive, but the schematics showed it to be just a standard 12v relay with an unusual plug at the base.
My fix was simple and cheap and extremely straightforward.
6 years later, still no ABS codes.

http://www.zr1.net/forum/showpost.ph...0&postcount=17
http://www.zr1.net/forum/showpost.ph...1&postcount=18

Crabs

We Gone · 10-08-2019

You can read the codes using the DLC Hib tells how on page 2 paragraph starting with, No Tester Read the Flashes. This is for 90-91.

Gordon K. also sells a cheater plug to do this. A good scanner with ABS will also read and clear the codes but only a Tech1 will do the function tests.

Mr Blue · 10-08-2019

THANKS

I will read the codes and see where that leads.

10-07-2019	#1
Mr Blue Join Date: Feb 2013 Location: Tallmadge OH Posts: 116	Service ABS I am getting a Service ABS light on the DIC. Is there an easy way to download codes for the ABS system? Thanks David

10-07-2019	#2
TX '90 ZR1 Join Date: Oct 2017 Location: TX Posts: 2,037	Re: Service ABS There is a lot of info in the "stickies" by Dynomite. Also, here's an article by Hib. https://www.corvetteactioncenter.com...abs/index.html __________________ Kenny 1990 #442

10-07-2019	#3
We Gone Join Date: Apr 2004 Location: ATL. GA. Posts: 2,170	Re: Service ABS I just went thru this on a 93 that article gave me a great understanding of how it works. I was able to get the codes thur the on board diagnostic. But I also have a scanner that reads ABS/ASR had DTC 63,64,72. Went to the FSM and found all the plugs to the modules. I unplugged all and plugged even the relays at the pump. removed and cleaned the ABS fuse. than cleared the codes and all was good. I think 72 (Serial data Link) was the main culprit. __________________ Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold

10-07-2019	#4
tccrab Join Date: Oct 2004 Location: Folsom CA Posts: 1,654	Re: Service ABS You'll need a TechOne to read and reset the ABS Code. I had an ABS Relay fail causing ABS code 63. Turns out, the relay is practically unobtanium. The few I found were stupid expensive, but the schematics showed it to be just a standard 12v relay with an unusual plug at the base. My fix was simple and cheap and extremely straightforward. 6 years later, still no ABS codes. http://www.zr1.net/forum/showpost.ph...0&postcount=17 http://www.zr1.net/forum/showpost.ph...1&postcount=18 Crabs __________________ TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B]

10-08-2019	#5
We Gone Join Date: Apr 2004 Location: ATL. GA. Posts: 2,170	Re: Service ABS You can read the codes using the DLC Hib tells how on page 2 paragraph starting with, No Tester Read the Flashes. This is for 90-91. Gordon K. also sells a cheater plug to do this. A good scanner with ABS will also read and clear the codes but only a Tech1 will do the function tests. __________________ Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold

10-08-2019	#6
Mr Blue Join Date: Feb 2013 Location: Tallmadge OH Posts: 116	Re: Service ABS THANKS I will read the codes and see where that leads.