I lost my low beams in my ‘12 Jetta. The high beams work, but I don’t have lows even after replacing the bulbs. I seen on another thread where they were moving pin 3 to 7 on the headlight switch, so I tried that and it didn’t work either. Any suggestions or what I should be looking for?
No Low Beams
- Thread starter idcwby
- Start date
From what I can tell all the fuses are good.
How did you test them?
Pulled them out and looked at them.
Nuje
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VCDS - see what the fault codes are.
Vince Waldon
Top Post Dawg
Just checking that you measured them, as opposed to just looking at them? They can develop micro-cracks that won't be visible but lead people on wild goose chases.
Code 3303 comes up. I can’t find anything about it.
Hopefully it’s not that.Just checking that you measured them, as opposed to just looking at them? They can develop micro-cracks that won't be visible but lead people on wild goose chases.
I’m leaning that it’s not a fuse because it’s both headlights and from what I’ve seen on the fuse schematics there is a left and right fuse. Unless I’ve been looking at the wrong schematic.
jokila
Vendor
Unless it's different from my MK4 there are 6 fuses to deal with. There is one fuse for left low beam, a fuse for left high beam, and left side parking light(front and rear). This is the same for the right side.Hopefully it’s not that.
If the fuses verify good, checking with an ohm meter, then it could be related to the high beam stalk.
Volkswagen Jetta 6 (2011 - 2016) - fuse box diagram - Auto Genius
Volkswagen Jetta 6 (2011 - 2016) - fuse box diagram
www.autogenius.info
Instead of throwing parts at it, maybe do some diagnosis with a test light
wonneber
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Did you just look at them or test for power getting to the fuse and going out on the other side of the fuse?
There were a load of bad plugin fuses that had a bad internal connection and power would pop it instantly.
My old boss in the auto parts warehouse bought a ton of them.
When people brought back because they were bad he blamed it to a short burning them out.
oilhammer
Certified Volkswagen Nut & Vendor
You need to use a scan tool... one that speaks Volkswagen. Go in and access the Central Electronics or whatever it is addressed as, that controls all the lighting on the car. All the lights are controlled by this module, solid state... there are no relays, this isn't the '80s. You need to "see" what this module is seeing. If it doesn't see the signal from the headlight switch, it won't turn the lights on.
wonneber
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oilhammer,
I guess my 2014 JSW would fall under this also?
Module controls the head lights?
Or am I missing something? (again)
I'm sure my 2024 Atlas is all modules.
The head lights auto turn on, high or low beam as needed.
If a car is coming towards me it auto dims.
Dang car is smarter the me.
It's going to take me a while to get use to the car steering automatically on the highway to stay in the lane.
oilhammer
Certified Volkswagen Nut & Vendor
I've not had to mess much with the Atlas, but I assume it uses a BCM under the UDS protocols like the newest other VAG cars do.
You'd have to tag the Gateway Installation List to see what all modules it has, assuming it still has that Gateway.
You'd have to tag the Gateway Installation List to see what all modules it has, assuming it still has that Gateway.
Hey everyone, work has had me busy the past few weeks so I haven’t been able to work on the car. Was checking power to the fuses and determined, I’m not getting power to F37 & F38 if I’m reading the diagram correctly, I did test with known good fuses to double check. What is upstream that wouldn’t be letting power to them?
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ghohouston
Veteran Member
Pull your bulbs out. A few months after purchasing my '12 model, one morning, no headlights. Both bulbs were burnt out. How/ why, I have no idea, as I've never come across both low beams going bad at the same time on anything, but a new set of bulbs and it's been working fine for months now.
That was the first thing I did, was replace the bulbs, it didn’t change anything.
wonneber
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Manure happens.
I had both of my brake lights go out one night.
Got the dash light about it.
Of course that was the night the police noticed it.
PBA card saved me.
ghohouston
Veteran Member
My apologies. I re read and see that now.
ghohouston
Veteran Member
That it does! They're good at noticing that hahaManure happens.
I had both of my brake lights go out one night.
Got the dash light about it.
Of course that was the night the police noticed it.
PBA card saved me.
wonneber
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And donut shop locations.