Advice on Trailer light Problem.

[drover]

So long as you got a couple of extra, LED's can have the odd dud I have found whether cheapie or expensive, they are polarity sensitive so if it doesn't work plug it in the other way.

[SeaComms]

Originally Posted by o1xjr

Side lights x 12, brake/tail x 4 indicators x 4, top lights front and rear x4. ordered for $38
Let’s see how it turns out.

Should have got in before you ordered, but make sure they are not CanBus compliant or Error Free LEDs. Both of these will have resistors in them to increase the load to that similar to the old incandescent globes so that globe out detection on a car didn't trip thinking the low current draw was the result of a blown globe.

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[drover]

Originally Posted by SeaComms

Should have got in before you ordered, but make sure they are not CanBus compliant or Error Free LEDs. Both of these will have resistors in them to increase the load to that similar to the old incandescent globes so that globe out detection on a car didn't trip thinking the low current draw was the result of a blown globe.

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Forgot all about that stuff ............. and I just had a thought that really it shouldn't make a difference if its a proper towing harness but then why did mine play up ????? A Jeep Porky maybe ? surely not..!!

[SeaComms]

Originally Posted by drover

Forgot all about that stuff ............. and I just had a thought that really it shouldn't make a difference if its a proper towing harness but then why did mine play up ????? A Jeep Porky maybe ? surely not..!!

The are only 5w usually each, but stick a dozen of them on and it could quite easily overload the circuit. If its a genuine Jeep towbar install the harness should have had a control box in it, ie, a box full of solid state relays switching an external power through to the trailer lights. However I have seen some if them fitted with an old school basic harness that simply taps into the existing lights wiring, running the trailer lights directly in parallel with the car lights. When you add the dozen 5w side markers and double 5w rail lights you end up with an additional 70w or more than an old school high beam headlight. It's simply not designed to carry that load. Changing out to cheap LED will definitely help, usually around half a watt each.

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[Hoppy99]

After picking up my new caravan almost everything is working perfectly, including power from the Anderson plug.

The only issue is that I need to connect “ACC power” to PIN number 2 on the flat 7 pin trailer plug on the WK2 grand to power up the airbag suspension on the caravan.
Can anyone tell me if there is an easy option to do this at the rear end of the WK2?

Currently PIN 2 is connected to the reverse light power, which isnt needed. We have a tow pro elite brake controller fitted, this was done by an auto electrician at Jeep when we purchased the vehicle in 2017.

[2bad4u]

I needed to run a hot wire to pin 2 for my ESC. I simply ran it from the jump start terminals and under the car.

[LeCheese]

Not done it personally but an option could be tapping into the 12v socket in the boot - which can be either ACC or constant power depending on the fuse position. Not sure how it would go with the amperage draw for pumping up airbags though