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Lightning had struck about twenty feet away and it tripped the anti-theft deterrent alarm?

Tiny
CRITTERMOM21
  • MEMBER
  • 2007 CHEVROLET AVEO
  • 1.6L
  • 4 CYL
  • 2WD
  • MANUAL
  • 145,788 MILES
My car was sitting beside where lightning had struck about 20 ft away and it tripped the anti-theft deterrent alarm, and it will not go off also replaced the throttle body because it had limited itself, I still can't get my diagnostic tool to read through the ECM. What am I doing wrong? Open voltage reference b circuit, replaced ECM still no signal from ECM to my diagnostic tool. Please help.
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Sunday, September 10th, 2023 AT 5:16 PM

16 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Wow, amazing! I hope no one was hurt. This could have caused problems with many things, but we should run the codes using a CAN scanner. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon. here is a video to show you how, but first let's check the ECM/TCM fuse in the fuse panel on the left side of the dash when you open the door.

https://youtu.be/u-4syLc-ifQ

Please use this guide to check the fuse.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please go over these guides and get back to us.
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Monday, September 11th, 2023 AT 5:13 PM
Tiny
CRITTERMOM21
  • MEMBER
  • 10 POSTS
  • 2007 CHEVROLET AVEO
  • 1.6L
  • 4 CYL
  • 2WD
  • MANUAL
  • 145,767 MILES
Any instructions, about 20 ft away from my car when it did it thrifty the anti-theft deterrent and it has been going off ever since. I have replaced most fuses I have traveled down all the wires to find any wires that needed replaced any plugins that might have been loose. I replaced my car door handles, replaced the latch on the hatchback and the alarm still will not stop screaming. Well, my DTC codes are reading that the ECM is not communicating with my reader and says that there is an open circuit reference b.
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Monday, September 11th, 2023 AT 5:14 PM (Merged)
Tiny
KEN L
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What code number is it please?
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Monday, September 11th, 2023 AT 5:14 PM
Tiny
CRITTERMOM21
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P0651 and P2106.
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Friday, September 15th, 2023 AT 10:47 AM
Tiny
CRITTERMOM21
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Any idea what's next?
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Sunday, September 17th, 2023 AT 3:16 PM
Tiny
KEN L
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Did you check all fuses with the system on? If all fuses are good:

P0651 - Sensor Reference Voltage "A" Circuit/Open:

P2106 - Throttle Actuator Control (TAC) System - Forced Limited Power:

So these codes are telling us the PCM has shorted out, you can get a preprogrammed unit by searching Google or Ebay.
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Monday, September 18th, 2023 AT 11:12 AM
Tiny
CRITTERMOM21
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I've already gotten a replacement, so called already programmed, still hitting these codes even after resetting them. Now I've got a light beep coming on my voltage tester on both metal connectors under the fuse for the ip-fuse battery fuse plug in. My others on each side only beeps on one side.
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Monday, September 18th, 2023 AT 2:20 PM
Tiny
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Also replaced the whole throttle body which includes the accelerator actuator I believe. Ignition coil pack previously to the ECM.
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Monday, September 18th, 2023 AT 2:23 PM
Tiny
CRITTERMOM21
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Replaced battery fuse with original equipment hard to find discontinued parts. Amazon thankfully had this part. I may be wrong on the connections any chance of a diagram on this battery terminal set up. I took pictures but my phone did not save them because of issues with full memory.
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Monday, September 18th, 2023 AT 11:54 PM
Tiny
CRITTERMOM21
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You there today?
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Tuesday, September 19th, 2023 AT 9:54 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Sure, here is the main power wiring diagrams so you can see how the system works and where to test for power. This guide can help:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Please let us know how it goes.

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Wednesday, September 20th, 2023 AT 6:05 PM
Tiny
CRITTERMOM21
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I'm reading my online repair manual and it's telling me that I need two keys or transponders inside of my vehicle in order to program this car. My question is how do I know if the ECM that I purchased was programmed I'm just going by what they're telling me that AutoZone. Also I have checked all of the top side power and everything checks out I'm going underneath today to start that from the bottom side and I believe this may have something to do with the auto locks it's inside the ignition in the steering wheel column I may be wrong but that's where I have narrowed it down to without being said I need to get another key made for this car is there any way that you can tell me what the part number is for the transponder key so that I don't order the wrong one I said 2007 Chevy Aveo 5 hatchback.
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Friday, September 22nd, 2023 AT 4:36 AM
Tiny
CRITTERMOM21
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Please also send instructions for relearning the car from scratch.
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Friday, September 22nd, 2023 AT 4:37 AM
Tiny
KEN L
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You can get a transponder from Amazon; just put it in the car, you will have one. You can have a mobile locksmith come out to do the job/program the ignition key it should cost about $250.00. Also, I would scan the PCM to see if any codes are stored.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Here is how to reset the car:

https://www.2carpros.com/articles/step-by-step-guide-performing-a-hard-system-reboot-for-your-vehicles-electronics-systems

Please go over these guides and get back to us.
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+1
Saturday, September 23rd, 2023 AT 10:51 AM
Tiny
CRITTERMOM21
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Okay, I've done all these. I need a screenshot of the fuse boxes. Both inside the car and under the hood. The alarm still is screaming, and the front driver tire will not turn when we pulled it to keep it from being a squirrel home. I've got a Haynes repair manual. But the book seems to leave out the hatchback in some scenarios. And also, will go into few details and then cut you off saying well you won't be able to do this, and you'll need to take the car into be on a computer. I have the software for these things so that gets me nowhere again. I'm leaning towards getting a completely new wiring harness. It's a fairly decent price online and doesn't entail a lot of rocket science. Any ideas please help. And just stay with me I'll get this car going. It has all new parts. No reason not to.
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Tuesday, November 21st, 2023 AT 7:22 PM
Tiny
KEN L
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Yep, no problem. Let's get the car running. Here is a guide to help check the fuses and the panel locations and the fuse identifications as well:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Let us know how it goes.
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Thursday, November 23rd, 2023 AT 9:28 AM

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