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VW Jetta Electrical System Questions

147 messages,  Last post on Nov 14, 2009 at 9:51 AM

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#77 of 147 1997 Jetta: stereo cuts out in hot weather by deedeetee Sep 11, 2008 (1:19 pm)
This problem started in about year 3 when I had the oem stereo (basic non-Bose version). It's continued even though I installed a new Pioneer cd unit.   Frequently the stereo loses power and cuts out, but will always come back on as soon as I switch the iginition off. This happens under 2 circumstances: 1) the car has been sitting in the sun and is hot. 2) when I hit a bump, even a small one. This is much rarer than 1), which  happens nearly 100% of the time in hot weather.   I've checked and reseated the fuse multiple times, as well as quadruple-checking the connections for the stereo's wiring harness.   This sounds like a relay-related problem, since switching the ignition off restores power every time - I doubt it would work like that if it was a loose wire.   I would appreciate any ideas before paying Al & Ed's to diagnose the problem.
#78 of 147 High beams don't work / indicator stays on by bobcatmat Sep 23, 2008 (8:58 pm)
On my 2000 Jetta, the high beams don't seem to work. The low beams / daytime running lights work fine, but I don't notice any difference when I switch the high beams on. I do notice the high beams come on when I "flash" them (by pulling the lever in towards me). Moreover, the high beam indicator stays on permanently. I replaced the halogen bulbs about 1 year ago. Is this an electrical problem? Any suggestions greatly appreciated!
#80 of 147 Instrument cluster, '99 Jetta by vwdawg Sep 24, 2008 (11:23 am)
Hello All: My '99 Jetta III instrument cluster was misbehaving. The tach and speedo failed to work almost all the time (they did work maybe once every 25 starts), while the other gauges (fuel, temp, clock, etc.) worked normally. When my mechanic said he could install a new cluster for about $450, I balked, and called the local auto recyclers for a used one. I found one from a '97 Golf, which is supposed to be the same cluster, and plugged it in. Now, everything works, but for some odd reason, the airbag indicator light stays on. I would assume that something wouldn't actually malfunction with the airbags by coincidence, so something in the replacement cluster is causing this. Anyone have any suggestions regarding the airbag light (or with the original malfunction of the tach and speedo)? Thanks!
#81 of 147 1999 VW Polo Key Programming by pepperman1 Oct 01, 2008 (6:55 pm)
I have a 99 Polo, it is the european version of the jetta. I lost the keys to the car. I took it to a shop and they put a new VW ignition switch on it but the cars computer will not recognize the key. How can i fix this or bypass this system? I am on an island in the caribbean and there is no VW dealership around. PLEASE HELP!!!!!!!!
#82 of 147 security alarm problem by dashtoronto Oct 04, 2008 (10:24 am)
hey,   I have a 1995 Jetta.   I'm guessing there's only one model of Jetta's made in 1995 because that's the year it says on the Owner's manual.   anyways,   the car alarm system goes off ALL THE TIME. It's so annoying. You open the door, with the key and it goes off. Why would it go off when you open the door with the key??   My question is, how does one turn off a car alarm. I know you have to enter the code. But I'm not sure the sequence that you must follow to turn it off.   You have to press MODE and then punch in the number, but its not that easy...   you have to press 1 and 1 twice for 11, because there's no 11 button.   Thats why i get confused.   can anyone tell me the sequence you're supposed to follow when shutting off the alarm. I'm pretty sure my brother knows the code.   Thanks.
#83 of 147 2002 Auxalliry Power Issue by zapper66 Dec 28, 2008 (10:10 am)
Help!!! I need to find the exact location of the cls fuse for a volkswagen 2002 jetta vr6. The owners manual does not show the exact fuse location for this in the fuse box.
#84 of 147 Turn Signal Switch by redfearn_jc Jan 09, 2009 (11:16 am)
I have an 01 Jetta. Recently, when i turn on the left hand blinker, it blinks really fast, much faster than normal, but the right is ok. i noticed that the left tail blinker bulb is out. does anyone know where the blinker fuse is?   Thanks Replies to this message: vwdawg (Jan 09, 2009 3:45 pm)
#85 of 147 Re: Turn Signal Switch [redfearn_jc] by vwdawg Jan 09, 2009 (3:45 pm)
Replying to: redfearn_jc (Jan 09, 2009 11:16 am) Hello redfearn jc: I previously owned an '01 Jetta, and I don't think you need to be concerned about the fuse. My recollection is that the reason the left signal is blinking fast is specifically to warn you that the signal bulb is burned out. I think if you replace the bulb, the blinker speed will return to normal. On the other hand, if you do need to access a fuse, the panel is on the left side face of the dash. Insert a small screwdriver into the slot on the bottom edge of the panel cover and pop it off. The challenge then is that each fuse is labeled with a symbol, and some of the symbols are a bit cryptic. I think you can google "jetta fuse panel" and access some descriptions of what the symbols mean. Good luck! vwdawg
#86 of 147 Ecp check engine lights by dipper05 Jan 13, 2009 (10:15 am)
I have a 2005 Jetta, the other day the car just turned off and said battery was dead, later on in the day it started fine and drove fine. The next day it happened again and the ECP light came on, since then the engine light has come on...   Any idea's are greatly appreciated Replies to this message: bobcatmat (Feb 11, 2009 9:18 am)

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