28 TCS - No Communication
Thread Starter
Team Owner
Joined: Dec 2000
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From: D*ck ina Box
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St. Jude Donor '03-'04
28 TCS - No Communication
Anyone ever ran into this 
I've read the stickied Ground Thread from Bill several times and started cleaning grounds last night.
Took the car out this morning after clearing all codes, and drove it hard!
After about 10 minutes, I got the usual, Sevice ABS, Service Traction Control, Service Active Handling, Service Vehicle Soon.
When I pulled back into the garage and reviewed codes, I got:
28 TCS - No Communication.....any ideas?
I've read the stickied Ground Thread from Bill several times and started cleaning grounds last night.
Took the car out this morning after clearing all codes, and drove it hard!
After about 10 minutes, I got the usual, Sevice ABS, Service Traction Control, Service Active Handling, Service Vehicle Soon.
When I pulled back into the garage and reviewed codes, I got:
28 TCS - No Communication.....any ideas?
Thread Starter
Team Owner
Joined: Dec 2000
Posts: 58,783
Likes: 1
From: D*ck ina Box
CI III & IV Vote Ho
CI II, III, IV & V Vet
CI IV Bracket Champ
St. Jude Donor '03-'04
Thanks for the reply, nothing unconnected that would trigger that.
In addition, after the car sits for a bit, upon re-start the codes have cleared and it's smooth sailing, until about 10 minutes into a drive, then it re-lights...
In addition, after the car sits for a bit, upon re-start the codes have cleared and it's smooth sailing, until about 10 minutes into a drive, then it re-lights...
Tech Contributor
Joined: Dec 2003
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
A total guess but if you pull the stock radio you get a No Comm message. In other words the computer can't see the electronic unit.
Following the logic, if it can't see a component my guess would be EBCM on its way out but intermittent just now. Then again, Bill Curlee fixed his problem by cleaning up the ground.
Hope you find a fix. Best of luck.
Following the logic, if it can't see a component my guess would be EBCM on its way out but intermittent just now. Then again, Bill Curlee fixed his problem by cleaning up the ground.
Hope you find a fix. Best of luck.
Thread Starter
Team Owner
Joined: Dec 2000
Posts: 58,783
Likes: 1
From: D*ck ina Box
CI III & IV Vote Ho
CI II, III, IV & V Vet
CI IV Bracket Champ
St. Jude Donor '03-'04
Thanks...that's the route I'm taking. I don't think it's an issue with the ground(s) as I took apart/cleaned the ones in the engine bay already and didn't find any issues, but since it's intermittent and goes away, it very well could be.
Hopefully I can pull/test the EBTCM later today, appreciate the reply
Hopefully I can pull/test the EBTCM later today, appreciate the reply
Team Owner
Joined: Mar 2001
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From: small town in S.E Pa. PA
St. Jude Donor '03-'04
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