Help - DIC Message This Morning
Thread Starter
Racer
Joined: Nov 2002
Posts: 324
Likes: 0
From: Norfolk VA
Just curious if I need to disconnect the Battery before messing with the EBCTM? Also, are there any special tabs securring the electricl connection? I don't want to break anything and then have to replace something I broke!
Advanced
Joined: Dec 2005
Posts: 84
Likes: 13
From: Cedar Park Tx
If you look at Bills pics you can see the main harness is secured with a white plastic strip passing through the gray locking handle. Remove the security strip then liift the handle and the harness will come right off.
Its always a good Idea to disconnect the battery when working on these cars.
Its always a good Idea to disconnect the battery when working on these cars.
Race Director
Joined: May 2005
Posts: 15,960
Likes: 21
From: West Norriton PA
St. Jude Donor '08
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
The only ground that really effects the EBTCM is G-101 (behind the driers headlight on top of the frame:
nliness and
The ground wire for the module / motor is the eyelet under the ground connector tab:
If you clean that ground and examine the main connector for cleanleness and proper connection, your done,,,get a new EBTCM.
BC
nliness and
The ground wire for the module / motor is the eyelet under the ground connector tab:
If you clean that ground and examine the main connector for cleanleness and proper connection, your done,,,get a new EBTCM.
BC
Heel & Toe
Joined: Jul 2005
Posts: 16
Likes: 0
Arg. I have had this happen on both my Zs, 01 and 03. It came and went on the 01 with no common circumstance I could put my finger on, but the problem went away as quick as it came. Now on my 03 it is there to stay it seems. It (the DIC messages about ABS, ASM, ans TCS) has come and one with a couple restarts before on this vette too. But now even after i checked the fuses, cleaned the grounds and connectors, the code wont go away. I just find it odd that it comes and goes sometimes and now all of a sudden its not going away! This time around it came on after i rolled in a curb parking stop.. the guys at the muffler shop parked it on a downhill slope an inch from the curb... anyway when I nudged the curb the DIC went nuts. My question is how the heck can a curb nudge on the front frame rail have anything to do with the pratical reasons for the code??
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
Alpine
The module is in front mounted to that area. The wiring harnesses are secured to the cross-member. You just might have a bad connection or a bad wire. Time to shake rattle and bump stuff to find the culprit.
BC
The module is in front mounted to that area. The wiring harnesses are secured to the cross-member. You just might have a bad connection or a bad wire. Time to shake rattle and bump stuff to find the culprit.
BC
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Melting Slicks
Joined: Sep 2005
Posts: 2,568
Likes: 264
From: Near Charlotte NC
I had the same problem yesterday after a snow ( really cold) and driving on salt treated roads.
1st crank of the day is ok.After driving,and re-starting the "Service ABS/AH" light came on.I could tell the ABS & AH were working.
After letting the car sit about an hr,it reset itself.
I switched to comp mode and no more problems( so far).
My 2 neighbors work at the local GM dealership.They say they have very few mech problems but lot's of elec and fit/finish work orders.
\db2
Carolina
1st crank of the day is ok.After driving,and re-starting the "Service ABS/AH" light came on.I could tell the ABS & AH were working.
After letting the car sit about an hr,it reset itself.
I switched to comp mode and no more problems( so far).
My 2 neighbors work at the local GM dealership.They say they have very few mech problems but lot's of elec and fit/finish work orders.
\db2
Carolina
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 NOT any connections to the TPS!
There small plastic devices inside the tire that transmit a radio signal to the RFA module.
Why do you need to know about the TPS?
There small plastic devices inside the tire that transmit a radio signal to the RFA module.
Why do you need to know about the TPS?
Heel & Toe
Joined: Jul 2005
Posts: 16
Likes: 0
Wow your fast. I read somewhere that if all the connections are good then that was te next place to look before replacing the EBTCM. Maybe just wishful thinking. I've wiggled everything I know to wiggle -- no effect.
Thread Starter
Racer
Joined: Nov 2002
Posts: 324
Likes: 0
From: Norfolk VA
Thought I'd update the Forum with the conclusion of my story. I drove the car for a couple of weeks before taking it to the dealer. Sure enough the EBCM was bad. When I dropped the car off I told the Service Manager, who I have a good relationship with, that if the EBCM was bad we were going to have to talk to GM because I didn't think a car with only 28K miles should have this problem. The next day I get a call and the Service Manager advised the EBCM needed to be replaced, $1,800! He had already called GM and the offer was they would replace the EBCM if I paid for the labor. I accepted this offer and only had to pay $688, and I got a free oil change to boot. Knock on wood this is the last trip to the shop for some time.
Advanced
Joined: Jan 2006
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Race Director
Joined: May 2005
Posts: 15,960
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From: West Norriton PA
St. Jude Donor '08
