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Modus headlight stays on

After turning off the ignition and locking car the passenger headhight comes on and can hear a buzzing sound comming from a box beside the battery, I had to disconect the battery to stop it,etc, can you please help me solve this problem.

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  • 195 Answers

Buzzing sound in a box besides the battery comes from a headlight relay that is malfunctionning, or getting weak power when not supposed to, maybe due to corrosion or dirt in the fuse box. You can try to exchange the left and right headlight relays for one another, if problem switches to the driver side, relay is bad, just change it. If it is still on passenger side, then the relays are good and you will need to check for corrosion and dirt or stripped/frayed wired in the fuse box itself. This may require you to take the box apart which can be a pretty hard job, so if you don't feel safe doing this, ask a professional to it. And if you do try this yourself, please remember to unplug the battery before working on the fuse block so you don't short anything out or cause damage to the electronics.

Posted on Dec 31, 2013

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Posted on Dec 31, 2008

dr_greg
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SOURCE: master door switch? or something else? buzzes when i press lock

ok ur door lock switch isnt going out,,however ur drivers front door lock actuator is going or is already bad...have that replaced..also as far as the end noise buzz u hear , that may be ur a.b.s modulator and accumulator cycleing on and off..it may be empty and or leaking..have the a.b.s modulator and accumulator checked at the dealer..its an expensive fix... ur modulator unit in in the front left or right of the vehicle depending if u have a v6 or 4 cyl. its a square unit with a rectangular brake fluid resevroir and a long tubular cylinder (acummulator)... also identify it by the orange connectors...and the brakelines going to it...common symptom with those accords....they leak alot especially if with high mileage..

Posted on Apr 09, 2009

Fog Horn
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SOURCE: battery charge light comes on a few minutes after car starts

Couple of things to check, first this may be nothing more than a belt that has loosened or stretched after the install.There should only be about a quarter of an inch stretch in the belt between pulleys. Caution - only check with engine stopped!!! The alternator causes a strong resistance when it is producing electric power, so slippage is to be checked first. Second, if the battery light comes on and off; it maybe acting in error. Get a multi-meter and check the battery voltage with car and ignition shut off. With the meter set on 12volt bat, place the black probe on the negative side of battery or ground and the red probe on the positive side of battery. If you get a reading of 12.66 v the battery is being charged and is full. If you get 12.45 you have a 50% charged battery. If less the alternator wiring needs further checking into as there maybe issues with wiring or the alternator itself. Hope this helps.

Posted on May 27, 2009

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SOURCE: Fuse box location & chart 2001 Mercedes c320/Key wont turn

There is a fuse to protect the circut operating the electric steering lock.

Posted on Nov 11, 2010

  • 1 Answer

SOURCE: I own a 2003 lincoln

Its the relay in the fuse box by the passenger side floor board. Remove the kick plate and its either white relay on the top (one is mounted horizontal on the right or rear position and vertical on the front or left. Its $6 bucks at Auto zone. You can switch both of them around and the truck will start and run till you get the replacement. Steve

Posted on Mar 02, 2011

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