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Thread: Dme Relay Location?

  1. #1
    Join Date
    Oct 2005
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    34

    Default Dme Relay Location?

    i got a 1231 code on my 93 525i so i figured i would change the DME relay but I dont know where it is. Can someone point me in the right direction please? Also is this a part I can pick up locally at Napa or autozone?

  2. #2
    Join Date
    Dec 2003
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    Default

    the main relay is in the box under the hood next to the computer on the right side, cover is held on with 4 + screws, some cars have 3 relays some have 2 the main will be the one with 5 pins and the others are 4 pin relays for fuel pump and if it has 3 relays a o2 sensor heater. with the key on if you have power to the injectors with main relay is good, no power check the big red wire that connects right next to the relays, no power there the fusable link is toast and it's a little forward of the battery and a bitch to change
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  3. #3
    Join Date
    Oct 2005
    Posts
    34

    Default

    Quote Originally Posted by winfred
    the main relay is in the box under the hood next to the computer on the right side, cover is held on with 4 + screws, some cars have 3 relays some have 2 the main will be the one with 5 pins and the others are 4 pin relays for fuel pump and if it has 3 relays a o2 sensor heater. with the key on if you have power to the injectors with main relay is good, no power check the big red wire that connects right next to the relays, no power there the fusable link is toast and it's a little forward of the battery and a bitch to change
    so is there any more information about code 1231?

  4. #4
    Join Date
    Dec 2003
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    baton rouge, loserana
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    it's probably nothing unless you have a running/starting problem, it just means the computer detected a low voltage condition and set a code, have you changed or had a dead battery recently? that could do it
    all america wants is cold beer warm cat and a place to take a poop with a door on it

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