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  1. #1
    New Member
    Join Date
    Apr 2012
    Posts
    21
    Location
    Ashland, Alabama
    Tractor
    Kubota L4310

    Default Ford 555B backhoe all 4 idiot lights coming on

    I assumed the ignition switch was bad because all the idiot lights--temperature, air filter, tranny, etc. came on at the same time, while the engine was still cool, and I could wiggle the key and get them to go off. After installing the new switch I am getting a different problem. When I start the engine the lights go out as they should but then come back on in 15-20 seconds. I have cleaned the connections on the new switch, all the connections on the alternator and the connector on the voltage regulator. By putting a digital meter on the battery it seems that the voltage regulator is kicking in and holding the voltage at 14.7 until it is charged. The battery holds 12.6 or so when not running, a new, good battery. I may have wired the switch wrong. The switch I installed is a 4 position: Off, heat, accessory, start. Start is spring loaded and springs back to the accessory position. I was not sure how the glow plug system worked. I was afraid that it did not need power to it all the time. This particular switch has power to lug 2 only in the heat position, but also has power to lug 4 and 2 in the accessory position. So putting the glow plug wire on Terminal 2 would keep the circuit energized all the time it was running. So until I am clear on that I did not connect the brown/red wire. Interestingly, I have the repair manual and it shows the wiring harness going to the ignition switch and labels all the circuits EXECPT wire 12 which simply says "Brown/Red Wire, with nothing indicating where it goes. By default I assume it is the glow plug system wire since it is the only circuit not named in the drawing. I don't know where to go from here. Any help would greatly be appreciated.
    Steve,

    2004 Kubota L4310 tractor, 5' Lands Pride rotary cutter, 27hp 60" Exmark Lazer Zero Turn mower, Kawasaki Mule 4010 4x4, Ford 555B backhoe, Speeco Split Master wood splitter, 6' County Line landscaping rake, 6' Tufline box blade, 12hp DR mower

  2. #2
    New Member
    Join Date
    Apr 2012
    Posts
    21
    Location
    Ashland, Alabama
    Tractor
    Kubota L4310

    Default Re: Ford 555B backhoe all 4 idiot lights coming on

    Not sure why no one responded, but thanks anyway. It was the oil pressure sensor. I started checking out the alternator, then the oil pressure sensor and I found it was showing conductivity to ground both running and off. $5.29 later I am back in business. I still don't understand why 3 of the 4 idiot lights came on when only the oil pressure sensor was bad, but I'm back at work anyway.
    Steve,

    2004 Kubota L4310 tractor, 5' Lands Pride rotary cutter, 27hp 60" Exmark Lazer Zero Turn mower, Kawasaki Mule 4010 4x4, Ford 555B backhoe, Speeco Split Master wood splitter, 6' County Line landscaping rake, 6' Tufline box blade, 12hp DR mower

  3. #3
    Elite Member
    Join Date
    Sep 2009
    Posts
    3,980
    Location
    Murray, KY
    Tractor
    265 MF / JD 310B Backhoe

    Default Re: Ford 555B backhoe all 4 idiot lights coming on

    Steve thanks for posting the solution. I had marked the thread to follow but like you I do not understand now that happened that all the lights had a path to 12v. Glad the part was cheap. Just paid $80 for the thermistor to turn the oil cooler fan on at 260F on the Polaris ATV.

    I know a guy with a 555 and he really likes it. Glad you are working again.

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