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One headlight out after changing control harness

Discussion in 'Western Plows Discussion' started by MightyPigpen, Feb 26, 2013.

  1. MightyPigpen

    MightyPigpen Junior Member
    Messages: 5

    I had a Poly Pro ultramount straight blade on my 2004 Dodge Ram 2500 with a 4 port isolation module. Everything worked perfect. I bought a used MPV that was installed on 2004 Chevy 2500 and used the old (Dodge's) isolation module but changed the control harness and plugged it into the #1 slot on the isolation module. Now, whether the plow is connected or not connected one head light is not working on dim. On brights it is ok. I thought it was the bulb, but that is ok. In addition to the new control harness I used starter solenoid that came with the MPV control harness. The old one was rusty and it got destroyed when I tried to disconnect the wires. he wires where connected to the solenoid so I didn't disconnect them. So one light is out with the existing isolation module. Now here is the weird part, with the 4 port Isolation module from the Chevy the lights do work, but I notice one headlight is a little delayed when it comes on, just a second or so, but they do work. I'd like to find out what I did wrong and did I ruin the old isolation module? Thank you.
  2. Western1

    Western1 Senior Member
    from MI.
    Messages: 752

    The problem would probably be the configuration plug in the control harness. Dodge uses it but Chevy doesn't. You can check the mechanics guide on westerns website.