Pressing brake pedal turns on parking and brake lights - Defender Source
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  #1  
Old August 27th, 2015, 09:58 PM
burlsube
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Pressing brake pedal turns on parking and brake lights

I noticed tonight that when I depress the brake pedal my parking lights and my brake lights turn on. Intermittently it seems like the brake lights will start working as they should - only when the pedal is depressed. I verified that the ground on the battery is good, clean and tight.

The issue presented itself when I installed leds around the truck. I thought they might be the culprit so I changed back to incandescent bulbs and the issue above still persists.

What am I missing? Is it the brake pedal switch?
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  #2  
Old August 27th, 2015, 09:59 PM
javelinadave
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I misread your problem. Johns post below is what I think is going on.
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Old August 27th, 2015, 10:01 PM
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John B.
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Most likely a bad ground at one of the lights. It feeds power back through the ground via the parking lights as they share a ground connection. Check the grounds at the rear lights first and make sure they are well connected to the body.
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  #4  
Old August 27th, 2015, 10:50 PM
burlsube
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Thanks. I'll give it a shot.

Would you recommend just making a new ground? I quickly tried to get the old ring terminal and ground screw out, but it is pretty .
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Old August 27th, 2015, 10:58 PM
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Nothing wrong with a new ground. When I installed new VDO gauges I made a new ground with thicker wire and new fittings just to be sure.
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Old August 27th, 2015, 11:57 PM
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David Frank
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When I hit my turn signal (in either direction) my trailer light on the dash illuminates briefly. I wonder if this is the same issue, or perhaps just normal, since I've only driven the one D.
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Old August 28th, 2015, 12:01 AM
javelinadave
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Quote:
Originally Posted by D90Overkill View Post
When I hit my turn signal (in either direction) my trailer light on the dash illuminates briefly. I wonder if this is the same issue, or perhaps just normal, since I've only driven the one D.
That is 100% normal.
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Old August 28th, 2015, 01:10 AM
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David Frank
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Quote:
Originally Posted by javelinadave View Post
That is 100% normal.
Thanks. That's good to know. I was just going to live with it anyways, but it's good to know that something else isn't falling apart! ;-)
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Old August 28th, 2015, 10:56 AM
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David Frank
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Yup. That's what it does. Always thought it was strange to light up just the once so I thought something was a miss. When towing, it would blink as you described, so figured it was fine and maybe just a bit glitchy.
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Old August 28th, 2015, 11:21 AM
burlsube
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Grounds tested good. Also, I noticed when I turn on the parking lights via the switch my brake lights come on full blast.
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