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Thread: LCMs - Other relays

  1. #1
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    LCMs - Other relays

    I gotten reports and have seen some LCMs that in addition to the headlights not working, the foglights parking lights, etc. are not working either. This is due to other 3 relays in the LCM. Since the original relays is no longer made and they are same crappy ones that caused the headlight issues I have some new relays (40A instead of 10A) being shipped. I'll install these in my LCM and test to ensure that they are the proper relays.

    If they work, which I'm sure they will, I'll be upgrading all LCMs that I get. The headlights will still be using the external heavy duty relay. The rest of the relays (internal) will be upgraded to the newer ones.

    If I repaired an LCM for you and you are experiencing issues with the other lights, I will upgrade the other 3 relays for the price of the parts and shipping.

    LCM Removal:

    • The LCM is about the size of a brick and is located just to the right of the steering column, in front of the gas pedal. There are 3 electrical connectors on the LCM.
    • Remove the bottom two connectors by depressing the tab and pulling on the connectors.
    • Remove the 2 mounting screws with a 7mm nut driver or socket. Push the LCM towards the gas pedal while rotating it up towards the roof. Once it’s free of the bracket, pull the LCM down towards the floor. You should now be able to release the last electrical connector.
    Last edited by fastblackmerc; 07-10-2017 at 08:10 AM. Reason: Sourced higher amperage internal relays
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  2. #2
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    Jim, is there room inside the LCM for all of the relays or do they all need to be outside of the original box? Just curious, one outside is not so bad, but 3 or 4 makes a wiring mess under the dash.
    #2941 300A
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  3. #3
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    Quote Originally Posted by Curless View Post
    Jim, is there room inside the LCM for all of the relays or do they all need to be outside of the original box? Just curious, one outside is not so bad, but 3 or 4 makes a wiring mess under the dash.
    Clearly you didnt read his post.

  4. #4
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    Quote Originally Posted by Curless View Post
    Jim, is there room inside the LCM for all of the relays or do they all need to be outside of the original box? Just curious, one outside is not so bad, but 3 or 4 makes a wiring mess under the dash.
    Quote Originally Posted by Zack View Post
    Clearly you didnt read his post.
    Reading is fundamental.

    Quote Originally Posted by fastblackmerc View Post
    The headlights will still be using the external heavy duty relay. The rest of the relays will be upgraded to the newer ones.

  5. #5
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    Quote Originally Posted by Zack View Post
    Clearly you didnt read his post.
    Oh yes I did, however my simple mind did not comprehend all that I read....thank you kind sir for pointing out the error in my ways... Jim, I rescind my previous question....carry on.
    #2941 300A
    4.10's, carbon clutches
    Marty O Tune
    Curless Cure
    Widened Wheels
    Dead Pedal
    Eaton Swapped

    Bar tender and maker of:
    Christmas in a cup
    The "Bucket of South Haven Iced Tea"
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  6. #6
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    Quote Originally Posted by martyo View Post
    Reading is fun for da mental.
    Fixed it for you!
    #2941 300A
    4.10's, carbon clutches
    Marty O Tune
    Curless Cure
    Widened Wheels
    Dead Pedal
    Eaton Swapped

    Bar tender and maker of:
    Christmas in a cup
    The "Bucket of South Haven Iced Tea"
    One Legged Lesbian Kickboxer
    Cocka Two

  7. #7
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    The new relays (3) will be in their original position inside the LCM, soldered to the PCB. I will continue to install the heavy duty headlight relay externally.

    The new relays will be 20A, an upgrade from the stock 10A.

    If this works I'll be offering the upgrade to all the owners of LCMs I've repaired.
    Last edited by fastblackmerc; 12-07-2015 at 09:06 AM.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  8. #8
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    Quote Originally Posted by fastblackmerc View Post
    The new relays (3) will be in their original position inside the LCM, soldered to the PCB. I will continue to install the heavy duty headlight relay externally.

    The new relays will be 15A, an upgrade from the stock 10A.

    If this works I'll be offering the upgrade to all the owners of LCMs I've repaired.

    Good stuff, I wondered about the other relays but since no one was complaining about them it was not an issue.....age wreaks havoc on all things in time.
    #2941 300A
    4.10's, carbon clutches
    Marty O Tune
    Curless Cure
    Widened Wheels
    Dead Pedal
    Eaton Swapped

    Bar tender and maker of:
    Christmas in a cup
    The "Bucket of South Haven Iced Tea"
    One Legged Lesbian Kickboxer
    Cocka Two

  9. #9
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    Quote Originally Posted by Curless View Post
    .....age wreaks havoc on all things in time.
    How true...

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  10. #10
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    New relays arrived... got work to do!
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  11. #11
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    Has anyone actually seen the LCM that Ford is offering? Jason changed mine out this week but I did not see the actual part and don't know if it is different than original.
    Surely, they made some changes for a recall change out.
    I have seen the results of your mod and it is great, especially now that you are changing out the other three relays for better relays.
    You have done a great service to the Marauder Community with the LCM's and other mod's you have done.
    Thanks.
    Bill
    03 Mercury Marauder, 300A
    SOLD
    2005 Lincoln Town Car, ADTR Supercharger, TCE Brake Lines, MO's Tune
    2022 Lincoln Aviator Reserve AWD

  12. #12
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    I had no fog lights or running/tail lights the other day. Started working again the next day after the car sat overnight. I already upgraded the headlight relay. I have an appointment next week to have the LCM replaced under the recall.

  13. #13
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    Quote Originally Posted by Black Terror View Post
    Has anyone actually seen the LCM that Ford is offering? Jason changed mine out this week but I did not see the actual part and don't know if it is different than original.
    Surely, they made some changes for a recall change out.
    I have seen the results of your mod and it is great, especially now that you are changing out the other three relays for better relays.
    You have done a great service to the Marauder Community with the LCM's and other mod's you have done.
    Thanks.
    As soon as they come off back order and I get mine I'll verify.

    I bet there is no change to the new LCM. The reason I say this is it would cost alot of money for Ford to re-engineer the part. Since alot of these cars will be over the 250K mileage limit in the next 4-8 years, Ford is banking on the majority of the "new" LCMs will last at least that long.

    I believe the length of time you use the headlights is directly related to how the relay lasts.
    Last edited by fastblackmerc; 12-07-2015 at 09:07 AM.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  14. #14
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    Quote Originally Posted by cw1115 View Post
    I had no fog lights or running/tail lights the other day. Started working again the next day after the car sat overnight. I already upgraded the headlight relay. I have an appointment next week to have the LCM replaced under the recall.
    Next time that happens, tap the LCM and if the lights come on then the relay(s) inside the LCM are starting to go bad.
    “When you can’t make them see the light, make them feel the heat.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis




  15. #15
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    This would explain why I haven't had fog lights on my 03 300A for years.
    MARAUDERS get me ****!

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