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I switched out the exterior bulbs on my SD with LEDs. For the turn signals up front, I added switchbacks, which are white running (parking) lights and amber turn signals. My quest is to have the Parking Lights be the DRLs, but I'm coming up empty.
Here's what my lights did, using the spreadsheet settings:
These are in the BdyCM As Built module..
726-45-01 Changed my factory setting to: xxxx 7Fxx xxxx
726-50-01 XXxx Replaced XX with the two digit values below, and after each is what MY lights did...
02 = All 4 Headlights On (Like Stock). High Beam or Low Beam, not sure?
04 = Lower Headlights and Fog Lights
08 = Switchback Ambers (Turn Signal Color) + Lower Headlights only
10 = Lower Headlights Only
20 = All 4 headlights, HB or LB unknown.
So, the value for 726-45-01, obviously has a bearing on the "02, 04..." settings. When I changed the 726-45-01 back to the factory setting, only the "20" and "02" settings actually worked as "Valid". All others failed to load. I wonder if there could be other settings for 726-45-01? How was the "7F" arrived at or found? Factory setting for mine was "03".
You can try this for Parking Lights only as DRL (which works on my F150 w/factory LEDS) but not sure what your results will be.
726-26-02 x1xx xxxx xxxx
726-50-01 01xx
The "7F" at 726-45-01 is a calculated hex value of all the DRL Choices at 726-50-01 below:
10xx Dedicated DRL Lights (LED Light Bars/Strips)
01xx DRL disabled
02xx DRL - low beams
04xx DRL - front fog lamps
08xx DRL - front turn lamps
20xx DRL - high beams
40xx DRL - Low Beams and Dedicated DRL
You can try this for Parking Lights only as DRL (which works on my F150 w/factory LEDS) but not sure what your results will be.
726-26-02 x1xx xxxx xxxx
726-50-01 01xx
I will try that and report my findings. While others may already know this, its interesting to note, DRLs do not come on until vehicle is in gear. Engine does not need to be running. I just set the parking brake while trying the different combinations.
I will try that and report my findings. While others may already know this, its interesting to note, DRLs do not come on until vehicle is in gear. Engine does not need to be running. I just set the parking brake while trying the different combinations.
Thanks!
wait does your truck have factory led or added? If they are just led replacements we couldn't get it to work on a friends truck.
wait does your truck have factory led or added? If they are just led replacements we couldn't get it to work on a friends truck.
If you go up a couple posts, I spec'd out what I did. I did NOT have LEDs to start with, and following the example on the spreadsheet, my results were different than Livnitup, who I can only assume does have the factory LEDs.
I'm hoping there is a setting for us halogen/normal bulb guys, where the "parking lights" can be the DRLs. In my case, these are white LEDs until the turn signal is used. They are certainly bright, and very noticeable in the daytime.
Ok yeah I really ment to post that the spread sheet only worked with factory leds.. I tried so many different combos on my friends truck we never got it to work. I have the paper somewhere of all the combos I tried.
You can increase/decrease duration & intensity and other stuff.
Thanks. That's amazing that you have been able to map the modules to such a degree. I placed a link to your spreadsheet in the notes column of the 2017 SD spreadsheet.
I reinstalled 4x LED tail lamp bulbs today, and I "cured" the hyper-flash problem. I also lowered my truck tire pressure thresholds from 60F/80R to 50F/60R. The TPMS warning indicator and the individual indicators for the two rear tires are once again all off.
I used the OHP Ford ELMconfig USB ELM327 interface doo-dad; it was $30 from Amazon. I just ran a long USB cable from my desktop PC, out a window, through the truck's driver's window, and plugged it into the OBD port.
My thanks to Livnitup, to EpicCowlick, to 1956Fatfenders, and to all others who provided the guidance and results of their experiments.
I reinstalled 4x LED tail lamp bulbs today, and I "cured" the hyper-flash problem. I also lowered my truck tire pressure thresholds from 60F/80R to 50F/60R. The TPMS warning indicator and the individual indicators for the two rear tires are once again all off.
I used the OHP Ford ELMconfig USB ELM327 interface doo-dad; it was $30 from Amazon. I just ran a long USB cable from my desktop PC, out a window, through the truck's driver's window, and plugged it into the OBD port.
My thanks to Livnitup, to EpicCowlick, to 1956Fatfenders, and to all others who provided the guidance and results of their experiments.
Jim / crewzer
And that's why we do this right there. It's not just messing with the truck. These kinds of modifications bring real value and satisfaction to the overall ownership and driving experience. Glad you got it working.
I posted the following on the F150 forums but figured I post it here as well:
Hopefully this explains why 726-45-01 xxxx 7Fxx xxxx allows all DRL choices at 726-50-01
726-50-01 108E Dedicated DRL Lights
726-50-01 017F DRL disabled
726-50-01 0280 DRL - low beams
726-50-01 0482 DRL - front fog lamps
726-50-01 0886 DRL - front turn lamps
726-50-01 209E DRL - high beams
726-50-01 40BE DRL - Low Beams and Dedicated DRL
Hex addition of all the choices above: 10+01+02+04+08+20+40=7F
Example 1: A truck with LEDs would have an as-built value of 726-45-01 xxxx 11xx xxxx which would only allow values at 726-50-01 of Dedicated DRL Lights (10) or DRL disabled (01) = (Hex addition of 10 + 01 = 11)
Example 2: A truck with Halogens would have an as-built value of 726-45-01 xxxx 03xx xxxx which would only allow values at 726-50-01 of DRL disabled (01) or DRL low beams (02) = (Hex addition of 01 + 02 = 03)
I hope this adds a little clarity to the meaning of the value at 726-45-01 xxxx **xx xxxx
Credit for figuring this out goes to F150forum member DanMc85
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