Dodge Cummins Diesel Forum

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-   -   Alfa OBD Success! (https://www.cumminsforum.com/forum/2013-2018-general-discussion/2490261-alfa-obd-success.html)

67guzzler 01-18-2019 10:47 AM

Quote:

Originally Posted by Ricky_Bobby (Post 28864749)
^Great videos and thank you for illustrating! I can't wait to get my OBD Link MX and do these changes in the BCM "properly" so I don't have to run resistors/capacitors

My pleasure.

-Guzzler

Show Killer 01-18-2019 12:48 PM

Quote:

Originally Posted by battlerattle (Post 28864615)
Its also available in "program Customer Options"-"tire size". I was not able to get any of the pre programmed sizes to work, but I did the math and plugged in the circumference in MM and it took just fine.

This is the route i took. My tires are 33.86" tall according to Nitto's web site. I did the math and came out with 2565.51 mm. I plugged that into the "program tire size" box and now my speedo doesn't work. I am getting error code u1412. I tried putting it back to the stock size but it won't let me change it.

blueram01 01-18-2019 01:05 PM

I don't think it will accept a decimal it has to be a whole number.

Jimmy07 01-18-2019 01:30 PM

Quote:

Originally Posted by Show Killer (Post 28864941)
This is the route i took. My tires are 33.86" tall according to Nitto's web site. I did the math and came out with 2565.51 mm. I plugged that into the "program tire size" box and now my speedo doesn't work. I am getting error code u1412. I tried putting it back to the stock size but it won't let me change it.

You may have to connect to the abs module and clear that fault first. Possibly perform abs initialization. Then re-do the tire size with no decimals.

Xokia 01-18-2019 02:17 PM

Quote:

Originally Posted by 67guzzler (Post 28864747)
It doesn't NECESSARILY mean you'll get a bulb out warning or have a circuit shut down, although you 100% CAN have that happen! For example, fogs and reverse lights seem to not generate any warnings. LED License Plate bulbs can. Interesting indeed!

It will depend on the load from the particular LED you are using. Even if you do not get bulb out in the first 10 min of driving it does not mean it will stay reliable. It can take days weeks before the lights start acting goofy. Inserting a .33ohm resistor is enough to make ALL Leds reliable with PWM turned on. A capacitor does a similar thing. A capacitor is actually a reactive load to an AC signal. I however would recommend turning PWM OFF if you are running LEDs. The silicon that make up an LED were not designed to switch on/off that fast. Giving them a clean DC signal should make them last longer.

Quote:

Originally Posted by blackhawk783 (Post 28864669)
- Set mirrors to tow mirrors

What does that do?

Quote:

Originally Posted by azjohnnyo (Post 28864627)
This is the current Known Working List

Seems the need to update that for HID and the speedo calibration

Show Killer 01-18-2019 02:23 PM

Yep, had to clear the abs faults then do the abs initialization sequence. It didn't take the 1st time I did it. The 2nd time was the kicker. Now to try and get the drl"s to work. I followed the procedure that someone posted above but they still don't work. Thanks for the help

So far I have:
Changed low beam/high beam & fogs to led
Activated dogs on with high beams
Global down
Tire size

Show Killer 01-18-2019 02:25 PM

Dogs? That would be a neat trick

Xokia 01-18-2019 02:26 PM

Quote:

Originally Posted by Show Killer (Post 28865109)
So far I have:
Changed low beam/high beam & fogs to led

You should set the low beam to HID. Setting it to LED doesn't shut the PWM off.
https://www.cumminsforum.com/forum/2...-alphaobd.html

Show Killer 01-18-2019 02:31 PM

5 Attachment(s)
I will do that. Another question, I am monitoring my egt's on the graph. Is there a way to change it to f from c? I looked in tools and preferences but didn't see anywhere to change it

Jimbo 01-18-2019 06:04 PM

Quote:

Originally Posted by Show Killer (Post 28865109)
Yep, had to clear the abs faults then do the abs initialization sequence. It didn't take the 1st time I did it. The 2nd time was the kicker. Now to try and get the drl"s to work. I followed the procedure that someone posted above but they still don't work. Thanks for the help

So far I have:
Changed low beam/high beam & fogs to led
Activated dogs on with high beams
Global down
Tire size

Quote:

Originally Posted by Show Killer (Post 28865113)
Dogs? That would be a neat trick

That would be a meat trick.

Ricky_Bobby 01-18-2019 06:07 PM

Quote:

Originally Posted by Xokia (Post 28865101)
It will depend on the load from the particular LED you are using. Even if you do not get bulb out in the first 10 min of driving it does not mean it will stay reliable. It can take days weeks before the lights start acting goofy. Inserting a .33ohm resistor is enough to make ALL Leds reliable with PWM turned on. A capacitor does a similar thing. A capacitor is actually a reactive load to an AC signal. I however would recommend turning PWM OFF if you are running LEDs. The silicon that make up an LED were not designed to switch on/off that fast. Giving them a clean DC signal should make them last longer.

I just ordered Mopar LED tails and the Retroshop adapters, but I want to add 7440 white LED bulbs in my reverse lights - the brand I used elsewhere on the truck are all Canbus error free bulbs, but on these reverse bulbs it doesnt specifically say it in the listing, except "polarity free" which historically means they are a Canbus bulb -

It only mentioned in the listing you'd need a resistor if using the bulbs in a turn signal application which makes sense - do you think I'd be ok running these in the LED tails with the Retroshop harness until I get my AlfaOBD running?(waiting on the security harness for my 2018 from DeereGuy)

67guzzler 01-18-2019 06:59 PM

Quote:

Originally Posted by Ricky_Bobby (Post 28865413)
I just ordered Mopar LED tails and the Retroshop adapters, but I want to add 7440 white LED bulbs in my reverse lights - the brand I used elsewhere on the truck are all Canbus error free bulbs, but on these reverse bulbs it doesnt specifically say it in the listing, except "polarity free" which historically means they are a Canbus bulb -

It only mentioned in the listing you'd need a resistor if using the bulbs in a turn signal application which makes sense - do you think I'd be ok running these in the LED tails with the Retroshop harness until I get my AlfaOBD running?(waiting on the security harness for my 2018 from DeereGuy)

I went with these in the beginning of 2017 (going on 2 years) and they've been great. They're not available anymore but I'm providing a link so you can see the pictures anyway. They never threw an error but they'll react to PWM as displayed in the video in my post prior in this thread.

https://www.cumminsforum.com/forum/2...l#post28864747

Link to bulbs: https://smile.amazon.com/gp/product/B01DGC885C

I hope this helps.

-Guzzler


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