I found that connecting the LED lighted boat trailer caused problems with my Rangie making my parked trailer lights flash every few seconds. This is caused by the vehicle doing it's system checks for blown bulbs. It also caused my brake light to faintly flash when it was towed.
I made this resister block to fix the problem.
It is wired into the trailer light lead. I have permanently mounted it onto my boat trailer, but a portable one could also me made that could be plugged in to use on multiple trailers with the right sockets.
The housing box is an alloy box I picked from Jaycar, it is aluminum so it will last, but they have cheaper plastic boxes there also.
The compression grommet I also picked up from Jaycar
The 25W 15 ohm resistors compliments of Ebay via China, they were cheap as, if you find the right weller, but the post is slow, so expect 3 weeks as they offer free postage.
1st. I fed a length of wire through the hole of each resistor on one end and soldered it to attach the wire , this gives you the NEG side to all resistors and you attach the White - negative wire of your colour coordinated trailer plug wires.
2. you need to attach by soldering one by one the remaining coloured trailer lead wires to remaining opposite resister ends, it doesn't matter what order in colour you proceed with at this stage. These are your positive + wires
Then I applied shrink tubing to the ends as this will prevent shorting of the connections of the + positive power that feeds through them.
I just sikaflexed the resistors to the inside of the alloy box.
3, Drill a hole of suitable size in the side of the box, install the compression grommet, feed the free end of the trailer wire through.
4. Fitting. Strip the coloured wires on the trailer lead end. Now strip a section of your existing trailer light lead and separate the coloured wires. take the corresponding coloured wires from you new resistor box and join then to the exact colour match wire. What you are achieving by this is it is creating extra load on each wire, so the vehicle thinks a higher wattage bulb fitted .
You could also fit some appropriate plugs so you could just plug it in piggy back and make it portable.
You make still get the Check trailer light come up on the dash when you start the vehicle, but it goes off shortly afterwards, but it solves the problem of the blinking LED lights.
Hop this is of some use.
Cheers, Mario
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Originally Posted by Roverlord off road spares
I found that connecting the LED lighted boat trailer caused problems with my Rangie making my parked trailer lights flash every few seconds. This is caused by the vehicle doing it's system checks for blown bulbs. It also caused my brake light to faintly flash when it was towed.
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