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Everything Electrical & Electronic Have an electrical problem? Lighting, Alternators, gauges, DIC, HUD, etc? Post it here. Please post Audio problems in the Audio forum, and Engine control problems in the appropriate Mechanical forum for your year.

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Old 02-06-2008, 03:36 AM   #31
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No. Some members don't like their headlights on during the daytime (daytime running lights which come on automatically at a reduced intensity during daylight hours). As such, some will bypass the circuit in the vehicle so this doesn't happen. It would appear from your response you have not tried to do this.

Here'* where we're at...

I believe there are possibly two seperate problems here. Shorts will cause fuses to blow (ie: your signal light circuit). Since your high beam headlights don't work and the fuses are good something else seems to be wrong here.

Over the next short time, I'm going to post some information on how you can check the grounds under your hood, verify the function of your signal light and high beam switch and trace back wiring in the various circuits.

Before doing this, you need to:

A. Verify your multimeter is working corrrectly (instructions to follow).
B. Ensure you are familiar with its use when measuring both voltage and resistance.

If you haven't already, examine all wiring in your vehicle near or at where anyone may have performed previous work. In particular, look for places where:

A. Connections have been extended, spliced and/or taped. Personally, I feel that electrical tape is inadequate for most situations and I ONLY use heat shrink tubing.
B. Wires have been moved or re-routed.
C. Wires contact corners in the vehicle body that may, over time, have rubbed through the insulation.
D. Screws were installed and may have pierced wiring on the opposite side of the structure they fastened to.

Other than the stereo install, are you aware of ANY other modifications, additions or deletions from your vehicle?
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Old 02-06-2008, 01:21 PM   #32
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I did check all around were the staero was installed and saw noting..thats the only modification that has been done to my car eltrically..
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Old 02-07-2008, 09:56 PM   #33
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Oh I did just remember, I did replace the rear ( by CAT ) 02 sensor not to to long ago...I know the brand isn't that good either so I will be replacing it again soon..( BOSCH )
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Old 02-08-2008, 01:55 AM   #34
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That shouldn't have an effect on the circuits in question. I'll try to post more as soon as I can. I'm currently in the middle of my 48 hours on shift so it will have to be as time permits.
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Old 02-08-2008, 03:16 PM   #35
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ok take your time ddalder...I'm going to check tomarrow before work in the engine again in any obvious areas that I can see if the wire is stripped or anything..
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Old 02-12-2008, 11:49 AM   #36
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Have any idea were I can look?
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Old 02-12-2008, 12:29 PM   #37
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Quote:
Originally Posted by EWC88
Also I had a water issue with my front driver side carpet, could that casue something? I have to wait to take a look under there due to its raining right now..
Is your carpet still wet?

And to those trying to help.....Does the 00+ have the ground buss locations that 92-99 have where corrosion can cause electrical gemlins? Could his wetness in the carpet affect any circuits that would cause any of these issues?
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Old 02-12-2008, 12:54 PM   #38
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I had a problem with my 91 Sonoma where interior lights and the radio were not functioning properly. What made it even more confusing was when a door was opened the lights acted differently.

The problem turned out to be the cig lighter positive prong was grounded to the metal housing of the cig lighter.

You might want to remove the connections to the cig lighter and see if you are still blowing fuses.

I know there is no relationship between a GMC Sonoma and a Bonny.

It also sounds like over time, after the stero install, there may be a mashed wire and the insulation finally wore through and allows a short circuit.

Wiring problems are really tough to fix. Hang in there you have the best Gearheads helping you out.
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Old 02-12-2008, 12:58 PM   #39
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In 2000+ GM was smart about where they attached grounding splice packs to the body. There are none attached to the base surface of the vehicle where this may be a problem. There are three of them attached to the rearward side surface of crossmembers under the front seats (1 left and 2 right). Others are mounted to the body several inches above the floor. Only one exists under the left rear seat which is mounted to the floor. This is in a location where water is unlikely to accumulate (and won't affect any of the applicable circuits).

EWC88, can I assume that you've now checked all the wiring closely and found no shorts?

Have you replaced any bulbs recently?

Can you confirm your meter is working correctly, or do you need instructions to make sure it'* functioning okay? This is not likely going to be an easy fix and you MUST be completely comfortable in using all its functions before we can go any further.
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Old 02-12-2008, 03:49 PM   #40
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I am going to check my meter tonight after work to see if it works by the way you told me...

I checked a little bit, should I check under my front seats you think?
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