Author Topic: Resistor for rear lights  (Read 566 times)

emptyhead

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Resistor for rear lights
« on: December 08, 2018, 06:36:03 AM »
Anyone else have the rear resistor in stock for tail lights. Also where does it mount on the frame. Thanks

steve1973

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Re: Resistor for rear lights
« Reply #1 on: December 08, 2018, 07:29:41 AM »
The resistor that is mounted in the rear by the driver's side tail light is specifically for trailers that have 6 volt lights. All the halftrack lights are 12 volts with exception of the BO drive light. That resistor is mounted on the firewall or under the dash somewhere.

Steve A.

Torque

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Re: Resistor for rear lights
« Reply #2 on: December 08, 2018, 04:58:50 PM »
Is the tail light resistor the same as the blackout resistor?

steve1973

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Re: Resistor for rear lights
« Reply #3 on: December 08, 2018, 05:37:25 PM »
No, it is not the same.

emptyhead

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Re: Resistor for rear lights
« Reply #4 on: December 09, 2018, 06:51:52 AM »
Thanks steve sorted out most of the rear light issues. The front blackout resister I’ve picked up two already and when I take a reading across the resistor I still get 12 volts. What does the blackout resistor actually control. Thanks

spillmk1

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Re: Resistor for rear lights
« Reply #5 on: December 09, 2018, 07:07:08 AM »
Hello from snowy NC,
You'll only drop voltage when you have current flow through the resistor.
You should measure a difference when the lights are turned on.

Keith
1955 M38A1
1952 M100
1941 M2A1
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emptyhead

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Re: Resistor for rear lights
« Reply #6 on: December 09, 2018, 10:36:53 AM »
Thanks. Which lights does it drop the voltage for front or rear.

steve1973

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Re: Resistor for rear lights
« Reply #7 on: December 09, 2018, 11:45:33 AM »
The BO resister on the firewall is for the 6V BO pedestal lights or the single BO light on early fender mounted vehicles if equipped. The resister in the rear by the trailer socket is for the trailer only. It doesn't do anything for the halftrack.

Steve A.

emptyhead

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Re: Resistor for rear lights
« Reply #8 on: December 09, 2018, 04:19:49 PM »
Thanks steve