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Aprojectile · 08-04-2021, 12:33 PM

My 2012 V6 won't start today. I've had some issues in the past with it doing some weird starting problems, such as "Service Anti Theft System" messages pop up, and last fall I had to replace my alternator due to it going out and preventing my car from starting.

Today I went out to start the car to go to the store and at 1st it was acting like a dead battery, the starter was clicking but no start. Tried to jump it and still nothing, just the starter clicking. So gave it a few to try and charge. But then on the 3rd attempt to start, the starter did nothing, no clicking, instead I got a message on my screen that said, "Service Stability Track".

So I hooked my laptop up to the car and scanned it with HPTuners and got the following codes

0x7EB: P023F - Fuel Pump Secondary Circuit / Open (Permanent)
0x7EB: U0100 - Lost Communication With ECM/PCM A (Pending, Current, Permanent)

I'm not sure if the P023F code is related to any of this or not. I will say I installed a ZL1 fuel pump back in 2016 though.

As for the U0100 code, I looked in some other forums talking about that code. I tried some of their solutions and still nothing.

08-04-2021, 12:33 PM	#1
Aprojectile Drives: 2012 Camaro LS Join Date: Jul 2015 Location: Georgetown, SC Posts: 213	Car Won't Start / U0100 & P023F My 2012 V6 won't start today. I've had some issues in the past with it doing some weird starting problems, such as "Service Anti Theft System" messages pop up, and last fall I had to replace my alternator due to it going out and preventing my car from starting. Today I went out to start the car to go to the store and at 1st it was acting like a dead battery, the starter was clicking but no start. Tried to jump it and still nothing, just the starter clicking. So gave it a few to try and charge. But then on the 3rd attempt to start, the starter did nothing, no clicking, instead I got a message on my screen that said, "Service Stability Track". So I hooked my laptop up to the car and scanned it with HPTuners and got the following codes 0x7EB: P023F - Fuel Pump Secondary Circuit / Open (Permanent) 0x7EB: U0100 - Lost Communication With ECM/PCM A (Pending, Current, Permanent) I'm not sure if the P023F code is related to any of this or not. I will say I installed a ZL1 fuel pump back in 2016 though. As for the U0100 code, I looked in some other forums talking about that code. I tried some of their solutions and still nothing.