U0100 code - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

GONMAD510 · 01-09-2017, 07:48 AM

Has anyone had this code pop up? If you did, what was the issue and how did you resolve it. I have this code popping up and it is keeping the car from running.

KaBoom1701 · 01-09-2017, 08:58 AM

Loss communication with ECU....sounds serious enough to take it to the dealer in my book...

GONMAD510 · 01-09-2017, 09:34 AM

It has been at the dealership for 1.5 weeks now.

Nor Cal ZL1 · 01-10-2017, 09:00 PM

Quote:

Originally Posted by GONMAD510

It has been at the dealership for 1.5 weeks now.

Which dealer? I would trailer it to Abel in Rio Vista. Best dealer in Nor Cal. They specialize in Corvettes and know the ZL1 as well. They have special pricing for the fast cars as well for service or performance work. Service Manager races a Zo6.

https://m.yelp.com/biz/abel-chevrolet-buick-rio-vista

nighttowl · 01-10-2017, 10:20 PM

Probably a bad ECU.

GONMAD510 · 01-11-2017, 08:33 AM

Let me give a little background on this. I took the car in to a reputable shop that has done a bunch of ZL1's to have my cam, headers and a bunch of other things installed. This shop drops the whole motor and the front cradle when they do the work so they are not leaning over the car and everything is easier to get to. They can have the motor out of the car in about 1.5 hours. They removed the motor, installed all of the parts and reinstalled the motor. When they went to run it on the dyno is where the problem started. The car would run for a couple minutes and then everything would shut off. Dash would go dark and engine would die. Car would not start back up. If the car cooled down for a bit it would start back up and then die after it was warmed up. The shop went over all of the wiring in the car and could not figure out why the car wouldn't run. They ended up taking it to a Chevrolet dealership. They ran diagnostics on the car and they narrowed it down to the steering rack. They are saying that the steering rack is the cause for the car not running correctly because it is one of the things that communicates with the ECU. The shop doesn't believe this is the issue because the car ran fine when I brought it to them and they didn't do anything with the steering rack when they were installing the parts on the car. I guess I will be replacing the steering rack on the car even though the steering rack seems to be working fine.

Foundryrat · 01-11-2017, 08:50 AM

I would check the wiring harnes plugs could be a bad connection

ZL1 Maniac · 01-11-2017, 10:53 AM

And check any and all grounding points.

These cars are sensitive to bad grounds....

HTH

Jeff

HDRDTD · 01-11-2017, 11:42 AM

Quote:

Originally Posted by ZL1 Maniac

And check any and all grounding points.

These cars are sensitive to bad grounds....

HTH

Jeff

GONMAD510 · 01-19-2017, 07:38 AM

Update: Well it turns out it was not the steering rack or a bad ECU or any grounds. It was my alarm. It was sensing that the ECU was being modified so it was shutting the car down. Not sure why the dealership was saying the steering rack needed to be replaced and that was causing the issue. Glad i didn't spent the $$$ on that and then I still would have had the issue.

KaBoom1701 · 01-19-2017, 08:42 AM

Aftermarket alarm?

GONMAD510 · 01-19-2017, 08:45 AM

Quote:

Originally Posted by KaBoom1701

Aftermarket alarm?

Yes it is aftermarket. Factory alarm is not enough.

01-09-2017, 07:48 AM	#1
GONMAD510 Drives: 2013 ZL1 M6 Join Date: Sep 2016 Location: CA Bay Area Posts: 248	U0100 code Has anyone had this code pop up? If you did, what was the issue and how did you resolve it. I have this code popping up and it is keeping the car from running.

01-09-2017, 08:58 AM	#2
KaBoom1701 KaBoom1701 Drives: 13' ZL1 Red M6 Join Date: Dec 2012 Location: I.E. SoCal (Yucaipa) Posts: 8,630	Loss communication with ECU....sounds serious enough to take it to the dealer in my book... __________________ Mods: Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats.

01-09-2017, 09:34 AM	#3
GONMAD510 Drives: 2013 ZL1 M6 Join Date: Sep 2016 Location: CA Bay Area Posts: 248	It has been at the dealership for 1.5 weeks now. Last edited by GONMAD510; 01-09-2017 at 10:01 AM.

01-10-2017, 10:20 PM	#5
nighttowl Sarcasm loading -------- Drives: 2018 ZL1 1LE Join Date: Dec 2011 Location: TX Posts: 1,805 View My Garage	Probably a bad ECU. __________________ "The salesman actually told me to stop getting it sideways during the test drive" 2018 MBM ZL1 1LE - Stock 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD

01-19-2017, 08:42 AM	#11
KaBoom1701 KaBoom1701 Drives: 13' ZL1 Red M6 Join Date: Dec 2012 Location: I.E. SoCal (Yucaipa) Posts: 8,630	Aftermarket alarm? __________________ Mods: Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats.

01-11-2017, 08:33 AM	#6
GONMAD510 Drives: 2013 ZL1 M6 Join Date: Sep 2016 Location: CA Bay Area Posts: 248	Let me give a little background on this. I took the car in to a reputable shop that has done a bunch of ZL1's to have my cam, headers and a bunch of other things installed. This shop drops the whole motor and the front cradle when they do the work so they are not leaning over the car and everything is easier to get to. They can have the motor out of the car in about 1.5 hours. They removed the motor, installed all of the parts and reinstalled the motor. When they went to run it on the dyno is where the problem started. The car would run for a couple minutes and then everything would shut off. Dash would go dark and engine would die. Car would not start back up. If the car cooled down for a bit it would start back up and then die after it was warmed up. The shop went over all of the wiring in the car and could not figure out why the car wouldn't run. They ended up taking it to a Chevrolet dealership. They ran diagnostics on the car and they narrowed it down to the steering rack. They are saying that the steering rack is the cause for the car not running correctly because it is one of the things that communicates with the ECU. The shop doesn't believe this is the issue because the car ran fine when I brought it to them and they didn't do anything with the steering rack when they were installing the parts on the car. I guess I will be replacing the steering rack on the car even though the steering rack seems to be working fine.

01-11-2017, 08:50 AM	#7
Foundryrat Drives: 2014 camaro convertible rs Join Date: Jul 2016 Location: Defiance ohio Posts: 29	I would check the wiring harnes plugs could be a bad connection

01-11-2017, 10:53 AM	#8
ZL1 Maniac Drives: 2014 ZL1 Red Hot M6 Join Date: Oct 2012 Location: Ohio Posts: 75	And check any and all grounding points. These cars are sensitive to bad grounds.... HTH Jeff

01-19-2017, 07:38 AM	#10
GONMAD510 Drives: 2013 ZL1 M6 Join Date: Sep 2016 Location: CA Bay Area Posts: 248	Update: Well it turns out it was not the steering rack or a bad ECU or any grounds. It was my alarm. It was sensing that the ECU was being modified so it was shutting the car down. Not sure why the dealership was saying the steering rack needed to be replaced and that was causing the issue. Glad i didn't spent the $$$ on that and then I still would have had the issue.