HELP

Asked by Sep 21, 2016 at 02:37 AM about the 2014 Volkswagen Jetta SE

Question type: Maintenance & Repair

2014 vw jetta se I hooked up the battery
backwards now car just runs off battery power alt
is shot in sure all the warning lights come on
Windows won't roll up or down blinkers don't work
radio don't work did I fry the computer please
someone help me out thanks

14 Answers

21,525

Check all fuses & circuit breakers under hood and also under dash and check the terminal wires and ground wire from battery to frame and ground wire from engine block to frame for burned wires, it has safety measures built in so I am sure you will be able to fix it,

3 of 3 people found this helpful.
21,525

Now I just saw that you must have had the key on because the windows blinkers ect does not work. Yes this will or can fry the alternator and if key was on yes fry the fuses under dash and I am sure the main fuse is blown too under the hood but also if key was on it may have fried the computer or damaged it, ifits not cranking then if all bad fuses replaced and still no crank up then yes it fried the computer.

1 of 1 people found this helpful.
21,525

If it does however run then you need a alternator and locate the blown fuses could be under hood and under dash.

1 of 1 people found this helpful.
21,525

Be sure to check those grounds I mentions above as they took the heat so to speak and may be burned or melted.

1 of 1 people found this helpful.
21,525

I always thought that battery terminals should be different sizes too instead of just different color. As in the dark color does not matter.

1 of 1 people found this helpful.
21,525

There is also a ground wire and fuse at the computer to check, the fuse for computer may be on it or in wire leading to it. Let me know how this goes. If I can think of anything else I will be glad to help.

1 of 1 people found this helpful.
107,445

Good advise from enginecreator, but remember this vehicle uses a BCM to control all of the accessories, when the power is disrupted in an incorrect manor the BCM looses is factory preset programming so none of the vehicles accessories will work, unfortunately the only place to get the BCM reflashed is the dealer.

1 of 1 people found this helpful.

Also was wondering if driving the car would fry the fuse box fuse box was fine the one under hood my girlfriend let her friend drive car to work and now the whole right side of the fuse box is fryed

21,525

I am sure it was headed that way already.

1 of 1 people found this helpful.

Ahhh man this sucks

But another thing is I never had the key on on even in ignition

Sorry ment never had the key in ignition

21,525

Is the fuse block melted or blown fuses on half of it?

1 of 1 people found this helpful.

Blown fuses

Your Answer

Jetta

Looking for a Used Jetta in your area?

CarGurus has 33,818 nationwide Jetta listings starting at $1,000.

ZIP:

Volkswagen Jetta Experts

  • #1
    Goodwrench707
    Reputation
    2,510
  • #2
    Deathjam4
    Reputation
    2,060
  • #3
    Tom Demyan
    Reputation
    1,590
View All

Related Models For Sale

Used Volkswagen Passat
438 Great Deals out of 26,078 listings starting at $1,000
Used Honda Civic
716 Great Deals out of 53,659 listings starting at $1,495
Used Honda Accord
909 Great Deals out of 78,521 listings starting at $1,295
Used Volkswagen GTI
126 Great Deals out of 7,873 listings starting at $1,490
Used Volkswagen Golf
87 Great Deals out of 3,203 listings starting at $995
Used Toyota Camry
1,122 Great Deals out of 77,115 listings starting at $1,400
Used Toyota Corolla
924 Great Deals out of 65,651 listings starting at $1,500
Used Audi A4
263 Great Deals out of 12,035 listings starting at $1,899
Used BMW 3 Series
1,123 Great Deals out of 33,108 listings starting at $1,428
Used Nissan Altima
1,179 Great Deals out of 74,974 listings starting at $900
Used Chevrolet Cruze
892 Great Deals out of 60,651 listings starting at $2,900
Used Mazda MAZDA3
313 Great Deals out of 26,873 listings starting at $899
Used Volkswagen CC
75 Great Deals out of 2,524 listings starting at $2,950
Used Ford Fusion
1,072 Great Deals out of 61,979 listings starting at $888
Used Ford Focus
694 Great Deals out of 64,737 listings starting at $999

Used Cars For Sale

2017 Volkswagen Jetta SE For Sale
7 Great Deals out of 748 listings starting at $10,666
2015 Volkswagen Jetta SE For Sale
5 Great Deals out of 153 listings starting at $8,990
2014 Volkswagen Jetta SE For Sale
17 Great Deals out of 288 listings starting at $6,997
2013 Volkswagen Jetta SE For Sale
9 Great Deals out of 166 listings starting at $3,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.