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-   -   BMW X5 E53 DIY OEM Hitch Installation Notes and factory installation PDF (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/86776-bmw-x5-e53-diy-oem-hitch-installation-notes-factory-installation-pdf.html)

omgwtf 07-08-2020 06:34 PM
Quote:
Originally Posted by Effduration (Post 1187327)
One of the reviewers has an E53 X5 and says it fixes the flashing but not the dash error. It's too bad it restricts you to a 4-pin plug.

It looks Like Curt #57003 is what you want to adapt to LED lights and keep a 7-way plug.

https://www.curtmfg.com/part/57003
I just ordered Curt #57003,
Will post my findings.

omgwtf 07-18-2020 12:37 PM
Quote:
Originally Posted by omgwtf (Post 1187354)
I just ordered Curt #57003,
Will post my findings.
Well it did not work, same outcome.
Park lights= Yes
Turn=No
Brakes=No

Effduration 07-18-2020 12:44 PM
You said you made your own harness..have you tested it
With a non-LED trailer or a non-LED trailer harness tester ? Are we sure this is an LED issue?

Testers are avail cheap on-line, autozone, Walmart (great trailer section) or uhaul.

omgwtf 07-19-2020 10:32 PM
2 Attachment(s)
Quote:
Originally Posted by Effduration (Post 1187949)
You said you made your own harness..have you tested it
With a non-LED trailer or a non-LED trailer harness tester ? Are we sure this is an LED issue?

Testers are avail cheap on-line, autozone, Walmart (great trailer section) or uhaul.
I did test it on a trailer with incandescent lights.(today)
Wiring is good.
Park lights work.
Tail and brake do not.

Effduration 07-19-2020 11:02 PM
Quote:
Originally Posted by omgwtf (Post 1188048)
I did test it on a trailer with incandescent lights.(today)
Wiring is good.
Park lights work.
Tail and brake do not.
How do you know wiring is good? It sounds like it is not good.

you have tried two different trailer modules
you have tried two different trailers

I would put a test light on the 7-way trailer connector and if lights still don't work, put a test light on the plug inside the back of the X5? If you have the trailer module connected correctly, you should get brake and turn signals at the connector inside the X5..

jk715 07-20-2020 03:25 PM
Just went to a small local salvage yard and pulled a oem hitch w/ all necessary parts + bumper brace for $250.

crystalworks 07-20-2020 05:46 PM
Quote:
Originally Posted by omgwtf (Post 1188048)
I did test it on a trailer with incandescent lights.(today)
Wiring is good.
Park lights work.
Tail and brake do not.
Those 7 series 20's look pretty good. :thumbup:. Sorry, nothing to contribute for your problem but had to comment on the wheels.

omgwtf 07-21-2020 03:53 PM
Quote:
Originally Posted by Effduration (Post 1188050)
How do you know wiring is good? It sounds like it is not good.

you have tried two different trailer modules
you have tried two different trailers

I would put a test light on the 7-way trailer connector and if lights still don't work, put a test light on the plug inside the back of the X5? If you have the trailer module connected correctly, you should get brake and turn signals at the connector inside the X5..
I'll take a better picture of my harness, maybe I missed something.
I did check with a voltmeter not a test light, there's no power go through the connector (Brake & Turn) just pulses.

omgwtf 07-21-2020 03:54 PM
Quote:
Originally Posted by crystalworks (Post 1188087)
Those 7 series 20's look pretty good. :thumbup:. Sorry, nothing to contribute for your problem but had to comment on the wheels.
Thank you! :thumbup:

PalmSpringsE534.6 07-21-2020 06:46 PM
Quote:
Originally Posted by jk715 (Post 1188081)
Just went to a small local salvage yard and pulled a oem hitch w/ all necessary parts + bumper brace for $250.
Lucky you! I have 5x that invested in mine at this point.


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