Computer issue, Service ABS/Traction Control - No OBD2 scan
08-30-2017, 06:35 PM
#1
8th Gear
Thread Starter
Member Since: Aug 2017
Location: Denver Colorado
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Computer issue, Service ABS/Traction Control - No OBD2 scan
I have a 2010 C6 and the other day the service abs/traction control warnings came on. I've tried to replicate it but it doesn't happen during normal driving for awhile. Today I hooked up my OBD2 scanner and it would never connect to scan but the abs/traction control warnings popped up immediately. I took it to advance auto to try their scanner and it did the exact same thing. I have a feeling this is computer related. Anyone have ideas where to start?
08-30-2017, 10:36 PM
#2
Team Owner
Member Since: Dec 2012
Location: Outside the Quick Stop N.J.
Posts: 30,426
Received 1,596 Likes
on
1,074 Posts
You need a Tech II or equivalent scanner to read ABS/TC codes. Does your scanner connect to the car and see data ? If not, I would start checking fuses.
08-30-2017, 10:41 PM
#3
8th Gear
Thread Starter
Member Since: Aug 2017
Location: Denver Colorado
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
I finally figured that out after doing a lot more reading. I have ordered a Pro Reader with ABS/SRS capabilites that should be here friday so hopefully I can find codes then. Another guy recommended fuses but all the ones I checked under the hood looked fine.
08-30-2017, 11:28 PM
#4
Team Owner
Member Since: Dec 2012
Location: Outside the Quick Stop N.J.
Posts: 30,426
Received 1,596 Likes
on
1,074 Posts
09-05-2017, 04:21 PM
#5
8th Gear
Thread Starter
Member Since: Aug 2017
Location: Denver Colorado
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Well I finally got out to pulling the fuses and they're all good. Service traction control and abs warning only appears if it just sits still for a bit or if I hook up my pro scanner and go to read the abs/srs it will start flashing immediately. Do I have a bad EBCM?
09-05-2017, 05:48 PM
#6
Safety Car
This may not help, but I just had a major issue where the traction control service message would come up, but my car would die and the whole mess wasn't pretty.
Finally had to replace the ECM and tested it today and it seems to be okay. It would die if I let it idle in the heat for 40 minutes. But is was the ECM.
So here is my advice, get a clone Tech2 if you are trying to find the issue. You can get them for about $250 and it is the tool to have, the amount of info is really fantastic. It takes real time snapshots and you can look at every sensor in the car before and after the event.
Finally had to replace the ECM and tested it today and it seems to be okay. It would die if I let it idle in the heat for 40 minutes. But is was the ECM.
So here is my advice, get a clone Tech2 if you are trying to find the issue. You can get them for about $250 and it is the tool to have, the amount of info is really fantastic. It takes real time snapshots and you can look at every sensor in the car before and after the event.
Last edited by TedG; 09-05-2017 at 05:49 PM.
09-05-2017, 07:42 PM
#7
Team Owner
Member Since: Dec 2012
Location: Outside the Quick Stop N.J.
Posts: 30,426
Received 1,596 Likes
on
1,074 Posts
I am not familiar with the pro scanner, is that a trade name ? If it has the ability to read live data see if you can read wheel speed sensors, ABS pump status, TC command, anything that has to do with the ABS/TC with the car running. If you can communicate and see the sensors then you might have a ground/battery problem. How old is the battery ?
09-06-2017, 06:58 PM
#8
8th Gear
Thread Starter
Member Since: Aug 2017
Location: Denver Colorado
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
I am not familiar with the pro scanner, is that a trade name ? If it has the ability to read live data see if you can read wheel speed sensors, ABS pump status, TC command, anything that has to do with the ABS/TC with the car running. If you can communicate and see the sensors then you might have a ground/battery problem. How old is the battery ?
09-06-2017, 07:15 PM
#9
8th Gear
Thread Starter
Member Since: Aug 2017
Location: Denver Colorado
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
I cannot connect to the ecu to read data, I keep getting an error message. Battery says 7/11 on it and the output is 12.7 volts when vehicle is off.
09-06-2017, 07:23 PM
#10
Safety Car
Also if the battery voltage is between 7 and 11 when on, make sure your headlights are turned off. It should be closer to 12. something when just on.
Last edited by TedG; 09-06-2017 at 07:25 PM.
09-06-2017, 09:05 PM
#11
Drifting
Scroll thru the info screens to see if its reading the tpms. If one is dead, it will cause this message. It will show up in the screen as XX instead of a pressure reading. 2010 is time for new ones. If that turns out to be the problem, get all four to save yourself some trouble
09-06-2017, 10:13 PM
#12
Team Owner
Member Since: Dec 2012
Location: Outside the Quick Stop N.J.
Posts: 30,426
Received 1,596 Likes
on
1,074 Posts