carrierj

At 726-45-01, do you have xxxx 7Fxx xxxx, which would allow all DRL configurations? Or do you have 03 or something else at that location?

tmcolegr

Thank you for taking the time to investigate. This would draw one to conclude the power fold mirror conversion on an XLT without BLIS is causing these DTCs in the door modules.


I sure would like for someone that has done the power fold mirror conversion on an XLT that has BLIS to chime in and let us know if these DTCs are present. I am of the opinion they won't be present as something is different on XLT trucks with BLIS.

Firerunner

iTrader: (3)

I will have a lot of ifs in this post but here goes..... the mirrors I bought are blis type and I've also got blis modules coming for the taillights. I have a VIN that I'm going to purchase the harness from a XLT blis equipped truck so IF this works and no one else tests for errors I MAY still be able to test this.....

Livnitup

My U.S. truck had 108E for 726-50-01 also for as-built. The wiring diagrams show C2280F (F-150) Pins 36 (Right) and 40 (Left) going to the headlights in trucks with stock LEDs. As was previously mentioned I verified these pins were in fact populated on C2280F on my truck.

I've pulled several XLT VINs that should have halogen and I see the as-built for them is 0280 for 726-50-01.

So I assume the 108E vs 0280 at 726-50-01 is an LED vs Halogen thing.

Grumpyf150xlt

Sure miss SoCal, lol.
A 2010 wouldn't work. From what I've read they had GEM modules.

seadragon

I have 11 as a value there in as-built. The full line is:

726-45-01 0A00 1101 0190

seadragon

Ah, that is interesting. I see the spreadsheet has been updated with this differentiation now. Thanks!

carrierj

I think that you have to have the 7F at 726-45-01 in order to allow the different options at 726-50-01.

tmcolegr

You do realize XLT with BLIS door harnesses aren't populated with the wiring for power fold mirrors even though they have 22 pin mirror connectors.

Livnitup

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 (LED Light Bars/Strips)
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

Edit: Credit for figuring this out goes to DanMc85 btw