bignelly1979
Posts: 5
Joined: Wed Feb 13, 2019 5:51 am

Lots of error - random

Thu May 23, 2019 10:20 am

OK, I am not sure what issue is.

About a week ago I was driving along and next thing I got loads of errors. More or less everything electrical turned off. So regen was gone and every. ABS, ACC and front assist, tyre pressure, headlight range control. All turned off mid drive.

Car still drove and I got home. Turned off car and back on. Nothing.

Then I started to get the pressure error. Said the system had failed. All the time. Then this stopped.

now every so often, random occasions I will have the same mass error against everything and the car will still drive. Turn it off and on and it will be ok again??????

Any ideas

Its a 15 model

miimura
Posts: 1318
Joined: Fri Mar 27, 2015 4:13 pm
Location: Los Altos, CA

Re: Lots of error - random

Thu May 23, 2019 10:23 am

Check the voltage at the 12V battery with the car OFF and ON and READY. These kinds of issues are usually due to problems with the 12V battery or the DC-DC converter that charges the 12V battery when the car is on.
2015 e-Golf LE (returned) | 2018 Tesla Model 3 LR | 2012 RAV4 EV Shoreline w/JdeMO | Leviton EVB40 & Jesla Home Charging | 4.32kW Motech/Enphase PV + 2x Powerwall 2 AC

bignelly1979
Posts: 5
Joined: Wed Feb 13, 2019 5:51 am

Re: Lots of error - random

Fri May 24, 2019 3:15 am

Thanks, will need to bring to garage to test

I was thinking it was 12v battery issues

bignelly1979
Posts: 5
Joined: Wed Feb 13, 2019 5:51 am

Re: Lots of error - random

Tue Jun 11, 2019 4:57 am

Ok, tested the 12v battery and no issues with it....

You mention the DC-DC convertor, I guess I have to go to VW to sort this?

JoulesThief
Posts: 2576
Joined: Mon Oct 05, 2015 2:01 pm

Re: Lots of error - random

Tue Jun 11, 2019 6:20 am

Since it's an intermittent problem, use your smart phone to take videos of it in failure mode, to show to the service writer, as to what the problems are, in case they can't duplicate the problem.
2015 e-Golf SEL
2015 Passat TDI SEL
2014 Touareg TDI LUX

Full spectrum VW owner, life is too short to wait to drive for a recharge.

mattw
Posts: 4
Joined: Thu Jan 13, 2022 12:53 pm

Re: Lots of error - random

Thu Jan 13, 2022 1:00 pm

Curious if your random error issue was resolved and what was the solution?

I have a 2019 e-Golf that started doing the same thing. So far the dealer has replaced the right rear tire speed sensor, hub bearing and ABS module.

Thanks, Matt

f1geek
Posts: 965
Joined: Fri Jan 23, 2015 1:18 pm
Location: SF Bay Area

Re: Lots of error - random

Thu Jan 13, 2022 6:17 pm

When you say "so far" do you mean the car is still broken?
2017 e-Golf LE, Multi Coat White with Black Vegan Leather interior

mattw
Posts: 4
Joined: Thu Jan 13, 2022 12:53 pm

Re: Lots of error - random

Fri Jan 14, 2022 6:03 am

Issue has not been resolved. Waiting to hear from VW what the next step is. Was looking for some insight from anyone who may have also had the same problem.

f1geek
Posts: 965
Joined: Fri Jan 23, 2015 1:18 pm
Location: SF Bay Area

Re: Lots of error - random

Fri Jan 14, 2022 8:26 am

If “everything” has an error, could it be a bad main computer or maybe a bad ground connection of the main computer?

Did the dealer give you a loaner? Do you live somewhere very cold in the winter? Is this an issue that showed up during a cold snap?
2017 e-Golf LE, Multi Coat White with Black Vegan Leather interior

mattw
Posts: 4
Joined: Thu Jan 13, 2022 12:53 pm

Re: Lots of error - random

Fri Jan 14, 2022 12:59 pm

It's five errors, the same ones each time. ABS, Hill start, Front assist, TPS and Electrical system. The errors randomly pop up. Sometimes when I turn the car on, other times while I'm driving. Sometimes turning the car off then back on clears them but not all the time.

Similar to the person who started this tread, regen is no longer active and you can't change driving modes, Normal, Eco, Eco plus.

As for weather I live in Arizona an haven't had any issues in summer or winter and yes they offered a loaner but I choose to use my second vehicle instead.

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