Cool – I’ll be adding support for the wake up in the next update (1.6.24 likely)

(just seen your post on jk-adventure :-))

Does equation ((A*256)+B)*(1/64) yield correct results
for 22B010? (Units °F)

Just curious… (this is the correct formula which
also matches quote below).

Edit:

Quote from mfifield on February 21, 2012
This might help out. I just read it on a Ram forum:

“There is already a sensor in your transmission that reads sump temperature. If you have a scan tool that will read data using PIDs, you can program it to read this thermistor. The PID was A01B on older trucks, and it is B011 on newer trucks (2007 and later, I am sure, but I don’t know how much earlier this code was used). This should return a signed 2-byte value with a scale factor of 0.015625. So you read a 2-byte value (like 11968) and multiply it by 0.015625 to get the measured sump temp in °F (in this example, 187°F).”

Which equation are you using that yields
130°F?

Can you try the two byte formula I posted above?. This is
the correct formula that has been used successfully
on the other forums.

The jkowner’s site is showing A as °C.

I’ll be sorting out the need for the ‘3e01’ pid soon in an update- sorry it’s taken so long (it’s a bit of a complicated change to do properly rather than hack it into the code and I need to have a block of time to do this without distraction)

I’m planning for this to be added in about 2 weeks time (I may add the jeep transmission PID in as well to the ‘predefined list’ part of the app as well for everyones ease once it’s done)

Forgot to mention I tried both C and F for the Units. When I used C, the temp was 18xx.

I also can’t edit the scale factor like that post you posted using “0.015625.” The scale factor has a menu with the numbers “x1, x10, x100, x1000, x0.1, x0.01, x0.001” only being selectable. Even so, the trans temp number would be in the 20s-30s using “0.015625” as the multiple.

Ah.

IIRC I did use C at first, I just posted WeGo’s reply instead of checking my phone.

Jeep is a 2010.

I tried Wego’s post again:

PID = 3e01
Unit type = C
Equation = A
OBD Header = 7DF

PID= 22b010
Unit type = F
Unit type = C
Equation = A

Jeep sat over night, outside temp was 64F, transmission temp was 62F. Last time when I checked (couple months ago) in the morning, the temps weren’t close at all. Drove across town (20 min drive, city) trans temp got up to 116F. I’ll have to do more driving but it seems like it’s working.

Has anyone been able to find the codes for a 2011 JK? This is different to the 07-10 due to some updates Chrysler did – I get a reading on Trans temp method 3 – however this is coolant temp and not trans. 22b010 doesn’t seem to work with the wakeup code…have run a full scan with torquescan but didn’t have any luck there either…. Is there perhaps a different wakeup code on the 2011?

Managed to get some time to have a play – no response on the top ones – will give it a go with 1092 as the wakeup now and report back…..

Edit: 1092 doesn’t work – sets off the ABS/Handbrake lights. 3e01 doesn’t seem to wake it up…..