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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

Wiring diagram

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Does anyone have a cab wiring harness diagram? I got a new led cargo light and the dang thing wont go off (clear only ) so I need to start tracing wiring to see what's going on... Diagram would be very handy :thumbup2:

 

Thanks!

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  • Me78569
    Me78569

    Look at the 1999 Cummins wiring map.  It has all the diagrams

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  • Author

Startee there first, then google... All I was seeing in the articles was engine wiring, is there more somewhere else? 

Look at the 1999 Cummins wiring map.  It has all the diagrams

    • Thanks 1
    • Author

    Amazing, thank you.

    • Author

     

     

    Confused a little....

    • Owner

    Problem...

     

    Cargo lights are a switched ground (pink/black) with a constant +12V (pink)

     

    Brake lights are switched +12V (white/tan)... With constant ground (lt green/black)

     

    If the LEDs have common ground then you stuck with what you got. 

     

    My idea is I'm going to use the factory lighting but switch then all out for LED bulbs. I've been doing the looking at the bulbs and prices. 

    Edited by Mopar1973Man

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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.