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#1
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looking for wiring diagram
I am looking for the AHM or trailer module wiring diagram, I've spent about an hour and a half looking for it, but I am not able to. Any help is appreciated. I have the problem that the brake lights are always on, on the trailer. That said I am looking for the wiring to check if I could tap into that plug with an aftermarket wiring so that it ends up in the OE plug and not have to have wiring hanging from the rear hatch.
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5G Ford Ranger Lariat 2022 E36/7 Z3 97 1.9 New project E53 X5 4.6is 02 OFF to Bring a trailer soon Land Rover Disco 2 03 - sold Kawasaki Z900B 17- sold E53 X5 3.0 5M/T 01-sold-again E53 X5 4.4 05-the beast a 4.8tu swap. at 150k -SOLD E83 X3 3.0-the wife's - sold R56 Mini Cooper S 07-sold E36 M3 97 - sold E36 M3 98-sold E39 528i 00-sold E30 318i 91-sold E36 M3 95-sold https://www.youtube.com/channel/UCcI..._as=subscriber |
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#2
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The wiring diagrams (particularly for North American sold cars) are the the rather helpful, thick Bentley manual (it's helped me for my Euro E53 as well).
For the tow bar / trailer hitch, what would be helpful to assist you - what wiring harness and system do you have? Westfalia (which is the OEM mfr for the E53)? You DO have the specific module (its in the largest compartment where your battery is located)? Can we assume that your car's brake lights operate correctly (off and on) and that only the trailer is the problem? What results do you have when you use your running lights (1st position) or headlights (2nd position) or high beams?
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2002 Euro X5 (E53) 3.0 diesel (M57) 5 speed manual with UUC short shifter. Pre-xDrive NV125 transfer case (chain & gears). Factory Xenon headlights, Spyder LED tail lights Updated vortex crankcase breather. Motorsport dead pedal, factory fire extinguisher, factory first aid kit, factory F&R mud flaps, factory PDC Bilstein B6 shocks F&R Redline oil has replaced "lifetime" fluids (F&R diff, manual transmission, transfer case and P/S). Dimple magnetic drain plugs in all compartments. |
#3
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Hi, thanks for the reply. Its oe equipment. Oh the X the lights work fine. But when I connect the trailer the brake lights are always on. I read in other post the the culprit is the light module. But that cost about 650USD. I am seeking for the wiring diagram on the trailer module to see if I could piggyback an after market wiring to the oe 7 plug on the outside. So that I bypassed the trailer module but still get the trailer lights to work properly.
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5G Ford Ranger Lariat 2022 E36/7 Z3 97 1.9 New project E53 X5 4.6is 02 OFF to Bring a trailer soon Land Rover Disco 2 03 - sold Kawasaki Z900B 17- sold E53 X5 3.0 5M/T 01-sold-again E53 X5 4.4 05-the beast a 4.8tu swap. at 150k -SOLD E83 X3 3.0-the wife's - sold R56 Mini Cooper S 07-sold E36 M3 97 - sold E36 M3 98-sold E39 528i 00-sold E30 318i 91-sold E36 M3 95-sold https://www.youtube.com/channel/UCcI..._as=subscriber |
#4
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Open up the module and look for solder issues on the board or look for a good used one on Ebay.com.
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2002 Euro X5 (E53) 3.0 diesel (M57) 5 speed manual with UUC short shifter. Pre-xDrive NV125 transfer case (chain & gears). Factory Xenon headlights, Spyder LED tail lights Updated vortex crankcase breather. Motorsport dead pedal, factory fire extinguisher, factory first aid kit, factory F&R mud flaps, factory PDC Bilstein B6 shocks F&R Redline oil has replaced "lifetime" fluids (F&R diff, manual transmission, transfer case and P/S). Dimple magnetic drain plugs in all compartments. |
#5
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I did think on opening the LCM module to check why it's giving 12V to the brake lights all the time. I have an X5 that I interchange the trailer module just to check if it that was what was wrong with it, but it's doing the same. So it should be the LCM that is bad. I am finishing working on the X5 put in the suspension refresher right now then I will work on the X3 to check on that module. Will post findings.
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5G Ford Ranger Lariat 2022 E36/7 Z3 97 1.9 New project E53 X5 4.6is 02 OFF to Bring a trailer soon Land Rover Disco 2 03 - sold Kawasaki Z900B 17- sold E53 X5 3.0 5M/T 01-sold-again E53 X5 4.4 05-the beast a 4.8tu swap. at 150k -SOLD E83 X3 3.0-the wife's - sold R56 Mini Cooper S 07-sold E36 M3 97 - sold E36 M3 98-sold E39 528i 00-sold E30 318i 91-sold E36 M3 95-sold https://www.youtube.com/channel/UCcI..._as=subscriber |
#6
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Try this:
https://www.newtis.info/tisv2/a/en/e...ghting/nGKcdft and this: https://www.newtis.info/tisv2/a/en/e...ghting/XUd3ba1
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Neil 2016 X5 3.0D 2009 X3 3.0D 2005 X5 3.0 Diesel Sport (sold) 2007 320i (sold) Last edited by yes_its_neil; 08-20-2018 at 12:05 AM. |
#7
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Quote:
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5G Ford Ranger Lariat 2022 E36/7 Z3 97 1.9 New project E53 X5 4.6is 02 OFF to Bring a trailer soon Land Rover Disco 2 03 - sold Kawasaki Z900B 17- sold E53 X5 3.0 5M/T 01-sold-again E53 X5 4.4 05-the beast a 4.8tu swap. at 150k -SOLD E83 X3 3.0-the wife's - sold R56 Mini Cooper S 07-sold E36 M3 97 - sold E36 M3 98-sold E39 528i 00-sold E30 318i 91-sold E36 M3 95-sold https://www.youtube.com/channel/UCcI..._as=subscriber |
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