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2004 LINCOLN LS HORN BLOWS WHEN USING THE TILT WHEEL

COLUMN AND HARNESS HAVE BEEN REPLACED, ONLY COMMON POINT FOR POWER TILT AND THE HORN IS THE CLUSTER....ANY IDEAS?

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  • Master
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Yes, the Instrument cluster is common to both the horn circuits and the power tilt. However, the horn is actually controlled by the Front Electronic Module (FEM) The IP only relays the horn request data to the FEM.

Beginning diagnosis by scanning the IPC and the FEM would probably be a real good idea.

Personally, I would be checking for inadvertent grounds on the horn circuit between the IPC and the steering column horn button by back-probing the pin at the IPC and watching the reference voltage as the tilt is used. Even if the harness has been replaced, the problem could be located in the clockspring assembly - unless this was also replaced.

The next thing to check would be for a bad ground circuit for the tilt system. It is possible that a bad ground could cause feedback to the IPC or to the FEM if the tilt system is not properly grounded. Ground G201 (Located under the left side of the dash) is common to both the IPC and the steering column clockspring. I would check other grounds as well if no problem is found there.

Posted on Feb 17, 2012

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  • Lincoln Master
  • 76,846 Answers

You have a wire that is rubbed bear inside the steering column, pull the covers and inspect the harness. Disconnect the battery negative cable for 10 minutes before you start work to disarm the Airbags

Posted on Feb 17, 2012

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SOURCE: 2004 Lincoln LS A/C Valve

In order to charge, you must locate the low pressure valve to install the refrigerant. The low pressure valve is between the compressor and the evaporator. Do not charge on the High Pressure side, The high pressure valve is between the compressor and the condenser. To locate the low pressure valve, follow the line that comes from the compressor and routes toward the firewall. The valve will be somewhere on that line. Do not overcharge. The amount of pressure that is needed on the low pressure side will depend on the ambient outside temperature.

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SOURCE: 2001 lincoln LS horn stopped working

Principles of Operation
When the horn switch is depressed, a message is sent from the instrument cluster via the network communication link to the front electronic module (FEM). The FEM acknowledges the message and energizes the horn relay by grounding the horn relay coil which allows the dual note horn to sound.
Inspection and Verification
NOTE: The FEM and instrument cluster must be reconfigured upon replacement. Refer to Section 418-01 .

  1. Verify the customer concern by operating the horn.
  1. Visually inspect for obvious signs of mechanical and electrical damage.
---------------------------------------------------------------------------
Visual Inspection Chart

MECHANICAL
  • Damaged horn
  • Damaged horn switch
  • Damaged horn relay
  • Damaged air bag sliding contact (14A664) C2

  • ELECTRICAL

    • Battery junction box (BJB) Fuses:
      • 425 (40A)
      • 422 (20A)
    • Central junction box (CJB) Fuses:
      • 202 (5A)
      • 213 (5A)
      • 217 (5A)
      • 220 (10A)
    • Auxiliary junction box (AJB) Fuse(s):
      • 104 (15A)
    • Damaged circuitry
    • Damaged horn relay
    • Loose or corroded connections
    • Damaged air bag sliding contact (14A664)
    Need a dealer for this part

    If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
    • check that the program card is correctly installed.
    • check the connections to the vehicle.
    • check the ignition switch position.

    Posted on Jul 08, 2009

    emissionwiz
    • 76846 Answers

    SOURCE: I own a 2001 Lincoln LS, my horn isn't working.

    it is doubtful the horn fuse is the problem, it is more likely the clock spring contact under the steering wheel, the fuse for the horn is located in the underhood fuse box,
    Fuse #4 15A* Horn

    Posted on Sep 30, 2009

    eldorondo
    • 79 Answers

    SOURCE: my horn on my lincoln ls 2000 doesnt work

    CHECK YOUR FUSES

    Posted on May 13, 2010

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    In the grey folder with your owners manual,is a white card with the factory code,for the keyless entry keypad. It also, tells you, how to put in your own code

    Posted on May 16, 2010

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    1 Answer

    I have loss all functions of every button on my steering wheel even my horn. which fuses do i check?


    Check for a break in the wiring harness before checking fuses. It would be unusual for several fuses to blow at once without there being an underlying problem such as a short in the loom, or a break in the circuit. There should be a multi-connector somewhere close to the column that joins the harness that runs up the column to the rest of the wiring. This could have come loose, or the connection inside the steering wheel could be damaged.

    Jul 31, 2011 | 2001 Lincoln LS

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    Where is the horn relay located on a lincoln 2002 ls v8. horn blows where alarm is press...but it will not work when i press the horn button insided the car?


    If the alarm makes the horn work, then it is not the relay.
    It is the horn contact or slip ring.
    You need to take the cover off the steering wheel center.
    But this could be dangerous due to air bags.
    Disconnect battery first.
    Steering wheel might have to come off.
    Recommend a shop because most people don't have the tools for pulling steering wheel.

    Aug 19, 2010 | 2002 Lincoln LS

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    I have a 2001 lincoln ls and my horn stopped working but the security horn still works. what could be the problem?


    the horn switch that is in the steering wheel seems to have gone bad. i would check here for your problem

    Jun 09, 2009 | 2004 Lincoln LS

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    2004 Lincoln LS - Horn just started blowing - Will not stop!


    it should dry out in a couple of days try replacing the fuse

    Jun 07, 2009 | 2004 Lincoln LS

    1 Answer

    Horn just stop blowing,won't blow


    When you press on the horn button do you hear the horn relay click? The start at the horn, bench test it, if it works then check for power, is the fuse good and is the relay ok. If the stuff checks out then it may be the horn contacts behind the steering wheel.

    May 23, 2009 | 2001 Lincoln LS

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    Steering wheel controls


    change out the clock spring. i had this happen to me google the lincoln ls clock spring installation and then go to the dealership and purchase the part. it will run you about $138.

    May 04, 2009 | 2002 Lincoln LS

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    Air bag light is on... The str wheel controls r never correct


    You have a bad clock spring. This is located behind the steering wheel and all electrical functions from steering wheel must go thru it. Pretty common problem on this model. The steering wheel and the steering column trim would have to be removed to replace it.

    Mar 23, 2009 | 2002 Lincoln LS

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    The horn keeps going off what could be wrong


    It could be the horn switch on the steering column. Disconnect the harness coming from the steering column at the bottom when the horn is blowing, if that stops the horn then the problem is the switch below the steering wheel

    Jan 03, 2009 | 2004 Dodge Ram 1500

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    2002 Lincoln LS horn wont work.


    the problem is your clock spring. it is not that hard to change but remember to disconnect your battery and let the vehicle sit twenty minutes. there are two screws on the side of your steering wheel. take them out then you will have the chance to release the airbag connector. once you get it disconnected there are a few panels on the lowere steering column under the dash that needs to be disconnected. the last thing will be your steering wheel bolt. it is a star socket. all together it will take you less than an hour. part cost me $138. after that my horn and my cruise control worked as advertised.

    Dec 05, 2008 | 2002 Lincoln LS

    1 Answer

    2004 Lincoln Town Car


    Hi,

    As in most electrical problems, it would be required to do a bit of tracing/diagnosis to determine which is at fault. Most automotive horn system works on the same basic design. A switch in the steering wheel that energizes the horn relay that in turn powers the horn(s). A self activating horn could be caused by:
    1: intermittent short in the steering wheel horn button;
    2. intermittent shorting out horn relay;
    3. intermittent short in the wiring.

    Basing on the above possibilities, diagnostic/corrective action would involve:
    a. tapping on the steering wheel (not the horn button) to see if jarring it would activate the horn, if yes then the problem is with the horn switch and often cleaning the inside/contact points of the switch should be corrective;
    b. tapping the horn relay with the handle of a screwdriver to determine if jarring it would activate the horn, if yes then the problem is with the horn relay which of course would need replacement;
    c. the wiring would be a bit more complicated if not time consuming. It would be necessary to wiggle the wires coming from the steering wheel/column to the main harness, to the fuse/relay bank finally to the horn to check at which point the trouble would resurface. Taping any exposed/bare/scraped wire would be corrective. It should be noted that the steering horn switch often would be "to ground" meaning the horn switch is switching the horn relay by providing the negative path, the relay is constantly supplied with B+12.

    There are some instances that the horn could also activated by an alarm system.

    Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

    Good luck and kind regards.

    Thank you for using FixYa.

    Jul 02, 2008 | 2004 Lincoln Town Car

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