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Volkswagen Passat Fuse and Electrical Problems



  • Hi Just got a SEL passat ..
    has dvd but once you start to drive....dvd image stops playing for safety can hear the dvd playing but no image....Can I get around this...
    and can I get a Back up camera for my Passat..

    Live in careteret NJ...can any one recommend a good parts and electric man for this task..
    Back up camera
    Install dvd players on both heads rest.
    and get my in dash monitor to play dvd ...even if in motion
  • What brand/model radio do you have? In most cases there is a way to bypass this feature, it is a safety feature that the manufacturer incorporates into their products to avoid liability for accidents caused by distractions that could otherwise be blamed on their product.
  • Hi dave
    Thanks for your time sound system is does not have
    brand but...I guess that's what it is...I'm going to ask dealer to install
    back up camera...I don't think they are going to bypass that feature..
    Do you know of any good place here in Jersey city area.
  • ellevtellevt Posts: 1
    So my old Honda finally kicked it, and I only had a few days and a few thousand dollars to get a new car. Settled on a 2002 Passat wagon. So far I'm very happy with the car, it runs really well. It just has a couple minor issues I wonder if anyone can help me with.

    1) AC is only moderately cool. Can I get freon to add to the AC system? Is this something I can easily do myself?

    2) Cruise control does not engage. Everything else on the steering wheel works (knock on wood). I will try replacing the fuses. If that doesn't work, what should I try next?

    3) Driver's side front blinker only works sometimes. It's not burnt out, because it does work occasionally. Is this a wiring/ electrical issue? The side one does work, so it's not as much a safety problem, but the fast clicking really annoys me!

    4) The car was rear-ended and has a new hatch. Neither the key nor the remote open the hatch, I can only open it with the inside door button. A minor inconvenience, but if there is an easy fix I'm all ears.

    Other than that, the car is awesome! Thanks for the help.
  • hey guys,
    I have a problem with my car, had this car for almost 4 years and now the tail light doesn't;t work properly. My back up light, and flashers works,.. Only brake lights work and not my lights that you have when your driving at night,,, I changed all the builbs, and cant see whats the problem, :mad:
  • mnmattmnmatt Posts: 5
    edited March 2012
    Hi all. I read through this forum and found it extremely helpful for my problem. My 2002 Passat wagon (left-hand drive) was having the same symptoms as everybody else who has been having CCM problems. Occasionally, after running the car for some time, it wouldn't start again when I shut it off. All the dashboard lights lit, the radio worked, headlights worked, but the ignition wouldn't turn over, interior lights didn't work, windows didn't work, gas cap and hatch wouldn't release, and the doors wouldn't stay locked. I could lock them using the key in the driver's door, but they'd all unlock right away. I've had the car for 7 months, and the problem used to be quite rare. I could leave the car to sit for half an hour, then it would start up and everything would work perfectly. Over the last 3 weeks, the problem started happening more frequently, until it happened every time I shut off the car.

    One thing I noticed was that I could get the car to start again without waiting. I would open and close the back door on the passenger side, or the other back door, or the front passenger door, or even the hatch (using the key). I would also flip a rocker switch that's inside the compartment in the center armrest (I have no clue what this switch does, and I've read the manual cover-to-cover; it's a round switch about three-quarters of an inch diameter, and when the top half is pressed, there's a red light.). None of these things worked 100% of the time, but if I tried enough of them, I could always get the car to start without waiting. That is, it always worked until two days ago, and now the car sits in the garage.

    I haven't yet checked to see if all the drains (plenum, sunroof) are open, but that's on my agenda. What I did do is pull up the carpeting on the left side, examine the wiring, remove the CCM and examine it. I fully expected to encounter standing water, but to my surprise, everything under the carpet is dry. There's no sign of water intrusion at all, at least to my untrained eye.

    Is it possible that the CCM would fail without getting wet? Would it fail all at once, or gradually over time (as the problem happened more and more frequently)? If I take the CCM to a dealer, can they check to see whether it's good or bad? Is it possible the problem could be something else that would cause exactly the same symptoms as a failed CCM?

    Thank you in advance for any help. I debated between buying this car and buying an Audi A6 one model year older, and I'm starting to think I made the wrong choice.
  • hey ,
    I have a problem with my car, had this car for almost 4 years and now the tail light doesn't;t work properly. My back up light, and flashers works,.. Only brake lights work and not my lights that you have when your driving at night,,, I changed all the builbs, and cant see whats the problem,
    ...and then tonight, my dash lights and tail light dont work anymore,, every other lights i have works,,, includint volt gauge,
    Could you please help me if you know something ,

    Thank you
  • fjimenezfjimenez Posts: 7
    Sorry can't help
  • mnmattmnmatt Posts: 5
    Here's an update on the situation.

    About 2 days after I pulled out the CCM, looked at it, and put it back, I decided on a whim to try to start the car. To my complete surprise, it started right up!

    What's more, it's been starting perfectly reliably ever since then. All the things that didn't work before have been working flawlessly. I still hold my breath when I shut off the engine, looking to see whether the interior lights come on, but they have every single time so far.

    I guess just removing the CCM and putting it back must have cleaned an oxidized connector or something. This saved me about $350, which is what the dealer told me a new CCM would cost.

    And the icing on the cake is that I have noticed significantly better gas milage since I R&R'd the CCM. I used to the the fuel warning light coming on after about 240 miles. On the current tank of gas, the light didn't come on until I had about 320 miles. Time will tell if this this improved milage sticks around or the milage diminishes, but for now I'm thrilled with my car.
  • As an installer it would be unethical to recommend by-passing the no playback of video while driving. On your factory unit it may be tricky, anyway. I don't know, I can say the after market units respond well when applying said modification of video play back.

    As for the back-up camera, the unit should have a "video in" RCA or manufacturer style plug for such a thing. It is triggered to send video signal to screen when the car is put into reverse ... so there's that connection as well. However, with factory video in your car, the wiring and connections/triggers should already be in place ... just add the camera, maybe.
  • jcarey12jcarey12 Posts: 2
    I have a Pasat, that is having issues. Occasionally it will not start, when it doesn't start, the power locks don't work, the power windows don't work, and when I take the key out, the radio stays on. There will be times when it works fine for a week, but then randomly won't start. I can always tell when it won't start, because when I open the door, the interior light doesn't turn on. Any suggestions on a solution for this problem?
  • mnmattmnmatt Posts: 5
    It looks like you're suffering from the infamous Comfort Control Module issue. Many others, myself included, have had those same symptoms, which we're able to eventually trace back to the Comfort Control Module. Personally, when pulling up to my kid's school, or the gas station, or anywhere else where it would be possible to leave the car running if I so chose, I'd try to turn on the interior lights. If they worked, I'd go ahead and shut off the engine, confident it would start again. If the lights didn't come on, I'd leave the engine running, since I knew it wouldn't start up again.

    My problem usually resolved itself after the car sat for awhile. The last time, however, it didn't start after sitting for several hours. I'd previously had some luck when I tinkered with the CCM, simply removing it and plugging it back in. After doing that, the problem didn't come back for several weeks. It eventually came back with a vengeance, though. So I ordered a new Comfort Control Module from the dealer ($379.59, tax included, just for the part), and left the car where it was. Four days later I went back to the car, and it still wouldn't start. I removed the old CCM, plugged in the new one, and still nothing. I about lost it. However, having read through this thread in its entirety in the past, I knew that sometimes it's not the CCM, but the wires that go to the CCM. So I started twisting, pulling and kneading wires, and next thing I knew, the car started right up. I drove it home, put the old CCM back in, put the new CCM back in the box, and I haven't had a single problem in the six weeks since then.

    Somewhere farther back in this thread you'll find instructions or a link to another site that has instructions for replacing the CCM. It's located under the carpet in the footwell on the left side (driver's side in the USA) of the front seat. When water leaks into the interior, the CCM (a circuit board) can get wet, or the wiring can get wet. Water wasn't the culprit in my case, at least not that I could tell, but you can also find suggestions for unplugging drain holes in the engine compartment and the sunroof, which when plugged will allow water into your interior.

    If you inspect all the wiring, jiggle it around, whatever, and the problem doesn't go away, or if you see evidence of water on the unit, I'd be happy to sell you my new CCM for less than you can get it for from the dealer. I used it for about 30 minutes before putting the old one back in, so I know it's good. Being an electrical part, the dealer wouldn't let me return it once the package was opened. If you're interested, the part number, which you should check on yours to be sure it's the same one, is 1C0-959-799-C-081. I'd be happy to send you pics of the unit and a copy of the invoice.

    Good luck to you, and if you have any more questions, I'll hopefully be able to answer them.
  • jcarey12jcarey12 Posts: 2
    Thanks for your response. I have not been able to start the car for two days now, so I definitely need to check the CCM. How difficult is it to access this part? If you could post the link on how to get to the CCM that would be a great help to me. If I end up needing a new CCM altogether, I will contact you. Thanks again for your help.
  • folbfolb Posts: 54
    I have a 96 Passat. My issue was the battery kept dying. I removed all the fusues and then reinstalled them. Haven't had the problem since. Maybe one was arching and grounding out somehow.
  • mnmattmnmatt Posts: 5
    I know it wasn't a battery problem for me, because all the dashboard lights came on, the headlights worked, and the radio worked, even after several days of the car just sitting unable to start. The power windows, interior light, and power locks did not work, and the ignition would not turn over if I turned the key.

    Here's the site where I learned how to replace the CCM. They have a 1998 Passat, but the CCM and the wires are identical to my 1992 Passat wagon. When I moved the driver's seat all the way back, I could push the carpet back far enough to pull out the large plastic box that holds the CCM, and I can get to the thick bundle of wires alongside the door opening. I still haven't bothered to put it all back together, so I'm driving with a large plastic box on my floor, and the trim strip from the door opening loose. m-for-the-volkswagen-passat/

    I see in one of their photos that the part number on their CCM is slightly different than mine. Mine is 1C0-959-799-C-091, and theirs is 1J0-959-799-K-something (the picture cuts off). If the wiring isn't your problem, make a note of your particular CCM part number.
  • 2003 Passat just changed the window reg clips and now the same problem not windows, remote locks, button locks than unlocks, no cabin lights, gas door, rear hatch lock .

    Did you ever solve yours?
  • Sounds to me like the CCM. Read message #392 and #397 for more symptoms. Message #401 has a link to a site that has instructions for changing the CCM.

    Beware, though. The CCM problem can also be wiring. In my case it was wiring, and just kneading the bundle of wires fixed it for me. Which is why I have a brand-new CCM I'm willing to sell. Contact me of you're interested, but thoroughly check the wires first.
  • timw8timw8 Posts: 1
    I have the same problem with my Passat right now. What ended up being the problem?
  • Check the ground's in the wire loom leading to the ccm. When you open the bundles of wire, remove the black tape type wrap, and you will definitely see corrosion at the bad joints. I would also check the grounds up on the side wall to the left of your brake pedal.
    Finally, check the operation of your door lock on the driver's side. Make sure the electrical portion is actually letting the car know the door is open. (Otherwise I have had it happen, on a Jetta most recently, where the door lock is the culprit, and the car thinks someone has climbed in without opening, and unlocking the door, then the anti-theft kicks in.)

    Changed numerous Ccm's and respliced many wire looms and most times you can take care of it. Just be careful, and take your time. There are about 70+ wires, spliced down to 30 something, and then down to the ccm plug. So be thorough.

    Good luck guys!
  • hi their my passat is playing up the same way! which fuse box or use checking the one beside drivers door?
    king regards donald
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