Unsure where to go from here

[NuggsOnMyMind]

Hello, I have a 2017 Golf Gti Autobahn edition in the 6 speed manual, its got 74k miles on it, and Aside from new rims, there have been no upgrades yet. As of today, the car wont start, thought it was the battery, but I charged the battery at autozone so thats not the case. When I try starting the car theres no sound from the engine, no click from the starter, or anything, I dont even think its turning over. I got a FixAssist 3020RS obd2 scanner because that was the only scanner they had available, and I didnt get any engine codes, but I got a bunch of codes from the ABS Control Module. I haven't done any driving that'd really stress the car at all recently. So I guess my questions right now are; How likely is it for the ABS control module to fail randomly, and based on the codes in the screenshot, does it lead you to believe simply replacing/recoding the abs control module will fix the issues?

TLDR: Got a bunch of codes about the abs control module, and car wont start/turn over

Sorry for the long post, and thanks in advance for your help!

 

[gixxerfool]

These are likely set due to the low voltage. Are the new connections tight and clean? Did you attempt to jump it and reverse polarities possibly opening a fuse? You are obviously getting power in the car to run a scan tool. You said there were no engine codes, but could you communicate with the ECM/PCM?

 

[NuggsOnMyMind]

These are likely set due to the low voltage. Are the new connections tight and clean? Did you attempt to jump it and reverse polarities possibly opening a fuse? You are obviously getting power in the car to run a scan tool. You said there were no engine codes, but could you communicate with the ECM/PCM?

I tried to jump it before getting the battery charged, but I can try that now. I've never tried reversing polarities to open a fuse, but its worth a shot. I believe I'm able to connect to the ecm/pcm, though admittedly Im not sure how I'd check to be honest

 

[jimlloyd40]

Welcome to the forum. Why did you have to charge it at Autozone? My guess is it's a bad battery and discharged on your way home. You should get it tested under a load and test the alternator also.

 

[SonictheHatchback]

I’m not an expert but I don’t think you would want to intentionally reverse polarity of the battery. I think other commenter was suggesting you may have accidentally done so, and thus opened a fuse that would now prevent starting the car.

 

[NuggsOnMyMind]

Welcome to the forum. Why did you have to charge it at Autozone? My guess is it's a bad battery and discharged on your way home. You should get it tested under a load and test the alternator also.

Thank you! I got it charged at autozone just to ensure it wasnt a dead battery. When I brought it to them it still had charge, but I just wanted to eliminate anything that wasnt the real issue

 

[NuggsOnMyMind]

I’m not an expert but I don’t think you would want to intentionally reverse polarity of the battery. I think other commenter was suggesting you may have accidentally done so, and thus opened a fuse that would now prevent starting the car.

Thank you! I misread what they had said and luckily hadnt done anything too drastic just yet! I'm gonna check the fuses, and see if any of them blew when I tried to jump start it this morning

 

[jimlloyd40]

Thank you! I got it charged at autozone just to ensure it wasnt a dead battery. When I brought it to them it still had charge, but I just wanted to eliminate anything that wasnt the real issue

How much charge did it have? Is it the original battery?

 

[NuggsOnMyMind]

How much charge did it have? Is it the original battery?

This was the battery that was in the car when I bought it from carmax, it is a Duralast Gold H5-DLG. I bought this car from CarMax, and have only put about 1,000 miles on it in the 3 months I've owned it. It had about 3/4 charge in it according to autozone

 

[jimlloyd40]

This was the battery that was in the car when I bought it from carmax, it is a Duralast Gold H5-DLG. I bought this car from CarMax, and have only put about 1,000 miles on it in the 3 months I've owned it. It had about 3/4 charge in it according to autozone

Have Autozone test it with a load on it. I don't know how many volts 3/4 is. My bet is on the battery being too weak.

 

[NuggsOnMyMind]

Have Autozone test it with a load on it. I don't know how many volts 3/4 is. My bet is on the battery being too weak.

Got it tested under load, its at 80% charge with 12.48V, I can try cleaning the connections, but they looked pretty clean to me.

 

[jimlloyd40]

It should be 12.7 volts. When they put a load on it how bad did it drop?

 

[jimlloyd40]

Here's how it should be tested.

 

[NuggsOnMyMind]

It should be 12.7 volts. When they put a load on it how bad did it drop?

They didnt tell me the charge before they tested, they just stated that 12.48 was the charge after they tested. Ill take it to another autozone see if they might be able to help a bit more

 

[jimlloyd40]

They didnt tell me the charge before they tested, they just stated that 12.48 was the charge after they tested. Ill take it to another autozone see if they might be able to help a bit more

It's not rocket science it's a simple load test. But the fact that you said you had it charged and it was still only showing 12.48 volts is a little low.