Electronic Gremlins: Electrical Problems That Are Driving You Crazy

1085 messages, Last post on Oct 29, 2009 at 11:41 AM

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#626 of 1085 Elecitrical wiring: help for loss of radio & map lights by rabbit50 Apr 18, 2006 (8:08 am)
1993 Toyota Camry XLE : Wiring burn/caustic smell ie.insulation. Subsequent loss of radio & map lights. Not related to fuses, radio wires, harnesses etc. Unsuccessful diagnostic search of underhood wiring(2hr.$120.00. I'm hopeful that someone may have had similar experience and can point to a more expedinant determinant? Thanks!! Replies to this message: bolivar (Apr 18, 2006 9:32 pm) rabbit50 (Apr 20, 2006 9:29 pm) user777 (Apr 21, 2006 2:52 am)
#627 of 1085 Re: Elecitrical wiring: help for loss of radio & map lights [rabbit50] by bolivar Apr 18, 2006 (9:32 pm)
Replying to: rabbit50 (Apr 18, 2006 8:08 am) Well, if you have 'loss of radio and map lights', you either blew a fuse somewhere or burned a wire completely through. Or burned a wire into another wire. Or burned up a relay, etc. 2 hours 'underhood' was probably the wrong part of the car. It's probably inside, under the dash. By any chance is this an aftermarket radio? A Best Buy installer back in 1993 might have cut into anything installing that Sonic-Blaster XP1200 radio and amp. And the overloaded wire to the map light finally overheated here 13 years later. Good luck. But long distance diagnostics are tough on problems like this. Replies to this message: rabbit50 (Apr 20, 2006 9:29 pm) user777 (Apr 21, 2006 2:52 am)
#628 of 1085 Re: Elecitrical wiring: help for loss of radio & map lights [bolivar] by rabbit50 Apr 20, 2006 (9:29 pm)
Replying to: bolivar (Apr 18, 2006 9:32 pm) Thanks for the input. Actually, the car had an aftermarket CD player installed. It was pulled and the wiring attached to it and what those wires were attached to looked good. The unit was disconnected until the problem can be resolved. Someone locally szid if the cigarette lighter doesn't work that it could be the culprit. It does not work. I am hoping to further investigate behind the dash to see if anything is obviously the problem. If not, it's back to the drawing board. If you know about the connection between a cigarette lighter that doesn't stay in the 'pushed in' position and how it may relate to the other electrical problems I would love to hear about it. Thanks again! R Replies to this message: user777 (Apr 21, 2006 2:52 am)
#629 of 1085 Re: Elecitrical wiring: help for loss of radio & map lights [rabbit50] by user777 Apr 21, 2006 (2:52 am)
Replying to: rabbit50 (Apr 20, 2006 9:29 pm) look in the cigarette lighter. do you have any little people in the family that might have stuck an object like a coin in there? do you use the lighter: did you push it in and it failed to pop out and perhaps shorted out? perhaps the lighter is now damaged. Did someone stick something like a coin into the CD player? get behind the dash if possible, perhaps remove some dash garnish if possible, if not use a makeup mirror and very bright light. look for evidence of heating / melting of insulation. look on the web or in an auto parts store for an electrical wiring diagram for your vehicle and determine what ckt the MAP lights are attached to.. wiring harness issue, exposed wire making contact with the metal frame, problem at the fuse holder... also possibilities. did you verify the fuse to ACC (accessories) was good? try another.
#630 of 1085 '86 Toyota Camry - Bass Cuts Out of Music After Six Seconds by myke_c Apr 22, 2006 (11:08 pm)
The Camry has a Sony head unit (CDX-S2210), 2 factory speakers in the front (4", full range) and 2 Pioneer TS-G1340R 5-1/4" 2-way speakers in the back. No amp or anything else besides what's mentioned above. When I start the car the stereo sounds fine, but after six seconds the bass disappears. What little bass is left distorts at a very low volume. This happens when the car is started; if the key is just put into the accessory position the music starts up sounding like crap instantly, with no 6-second period of full bass. This is the second aftermarket HU I've installed, and it worked fine in my previous car. I think the issue may be related to the amount of power reaching the HU. The fuse for the radio (in the car's panel, NOT the one in the back of the HU) was originally 7.5, but had been changed to a 10 by the previous owner to accomodate his aftermarket HU. I'm stumped. Has anyone heard of something like this before?
#631 of 1085 Re: BATTERIES DYING AND I'M ALWAYS CRYING [jadoremercedes] by reny Apr 22, 2006 (11:20 pm)
Replying to: jadoremercedes (Apr 12, 2006 10:47 pm) I have the same car I had the same problem the mechanic I took it to replaced the wiring harness and a few days later the same thing happened again but a freind told me that these kind of cars have a cumputer running all the time and these car need to be driven around to recharge the battery. A battery at the dealer goes for about $150.00 the most. Now I have been using the car alot more and I have no problem for now. I will never buy a MB again. Replies to this message: bolivar (Apr 24, 2006 12:18 am)
#632 of 1085 Re: BATTERIES DYING AND I'M ALWAYS CRYING [reny] by bolivar Apr 24, 2006 (12:18 am)
Replying to: reny (Apr 22, 2006 11:20 pm) Well, all modern cars have a 'computer' that 'runs all the time'. At least some part of it. And cars are not designed to run down the battery. A mechanic knowledgable about electronics should at least be able to narrow down the circuit, to one fuse in the fuse box that is causing the drain, very quickly. After that, it might take some time to find the actual problem.
#633 of 1085 heater (blower motor)works for 3 seconds then shuts off by wiseguy_75 Apr 25, 2006 (6:21 am)
The blower motor will sometimes work but for 2 or 3 sec then sguts off and I think only on high. If I turn the ignition key on and off quickly and non stop it will sometims go on for those 2 or 3 sec. Here is what I have tried so far... My buddy has the same car a 2000 chevrolt cavalier Z24 and so we spent a few hours swapping parts from his car to try to get my heater to work. We changed the blower motor, the heater-A/C controls, the fan blower resistor. There is really nothing much left. I doubt its a loose wire as I pulled and pushed and banged every wire that has to do with the heater. Anyone have any ideas...
#634 of 1085 mercedes starting problem by dnscud Apr 25, 2006 (10:03 am)
hope you can help. i have a 1994 m-b c-220, it sometimes cranks over without starting, if i charge the battery it starts just fine. i was told by the mb dealer that it wasnt cranking over fast enough to start the car and i needed a new battery and battery cable at a 1100.00 tag. the car went home with me at that time. the battery was replaced free of charge at autozone it was only 8 months old. both autozone and the mb dealer said the charging system was good. i bought a small battery charger and once a week top off the battery and it doesent give me any problems, but if i dont top it off it will give me the no start problemsooner or later.
#635 of 1085 Radio/Trip Computer Problem by 97gpgt Apr 30, 2006 (10:32 am)
Both do not work in my 97 grand prix gt. was wondering if anyone knew what could be the problem. checked all fuses having to do with radio and/or trip computer with a fuse tester and all were good. what could it be?

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