Thanks for the codes

Do any of the inexpensive bluetooth OBD-II dongles read out transmission temperature?

here's the codes i used..they are for 2010+Tacoma/4Runner's supposedly.. the scangauge website says toyota/lexus/scion 2010+


Transmission Temperature 1 (Degrees F) 2010+
TXD: 07E02182
RXF: 046105820000
RXD: 2808
MTH: 00090005FFD8
NAM: TFT1

Transmission Temperature 2 (Degrees F) 2010+
TXD: 07E02182
RXF: 046105820000
RXD: 3808
MTH: 00090005FFD8
NAM: TFT2

TFT1 is supposedly the trans pan temp and TFT2 is supposedly the trans converter output temp so that will tend to be higher and will vary more often

good update! Those codes are probably good for all the 5th gens

I used the codes from the first post on my 2007 Limited and the gauge just comes up blank.

Anyone have a similar issue?

I'm pretty sure those codes are what I used and it works on my '05 V8.

Torque pro app and a Bluetooth obd2 gets my vote. $20 total if you have a droid phone

the 05+ V6 use different codes than the 03-04 v6

Any idea what the 05+ codes are? I saw for pre-05 and for 10+ but we seem to be missing the 05-09 if there are indeed different codes.

Here are 2 more to try that I found on Tacoma World. I'll try them in the morning and see if either work.

" Thank you for your inquiry. Currently, transmission temperature is only available for Ford, GM and some VW vehicles via the X-Gauge feature. The X-Gauge comes standard on the ScanGauge II and allows you to program extra gauges into your unit for your vehicle. Our engineers have found two codes in order for the ScanGauge II to display transmission temperature for Toyota vehicles, however they are very experimental so there is a possiblility that the codes may not work.

TXD: 686AF101B4
RXF: 044105B4
RXD: 2010
MTH: 000703E8FFD8
NAM: TFT

or

TXD: 68 6A F1 01 B4
RXF: 04 41 05 B4 00 00
RXD: 28 08
MTH: 00 09 00 05 FF D8
NAME: ATF

Well a little more digging came up with this directly from the Scangauge xgauge support site.

TXD 07E021D9
RXF 032180000000
RXD 2810
MTH 00070064FE70
NAME TFT
Notes Degrees F

According to them, this works for all Toyota using the CANSF which includes 05+ 4Runner.

Toyota/Lexus/Scion Specific : Linear Logic : Home of the ScanGauge

WE have a winner. This works on my 07 V6 so I assume it will cover 05-09 if you want to update the original post.

alright guys I updated the first post with the verified codes for the 05 and newer 4Runners. Thanks guys for checking those out!

2008 Confirmed.

Now that people are finding it works what kind of temps are you getting? I think I need a larger cooler since I haul my trailer over Colorado high passes.

I watch my temps like a hawk, even when not towing.

What I try to do is keep the temp below 200 as much as I can. The most important thing to do is to not put it in D when you are climbing a steep hill. Having the shifter in D will cause it to constantly shift back and forth and the trans temp will shoot up.

Even on a long climb (like I-70 heading West from Denver or heading East up from Silverthorne to the Eisenhower Tunnel) I can usually keep it under 220. The key is to shift manually before the transmission shifts automatically.

Highest trans temps I've ever seen were 260 but that was only for a few minutes. Not surprisingly, this occurred when I was pulling a trailer and climbing out of Death Valley in July (outside temp on the floor of Death Valley was 113.)

I have heard that trans fluid starts to break down after sustained temps of 240 degrees or more. I don't know if that's true or not of modern transmissions, but either way, "under 200" is what I always strive for.

I don't think a momentary spike up to 240 or even 260 degrees is necessarily fatal, but I certainly would try to avoid it if at all possible.

Interestingly, even when I was climbing out of Death Valley and the trans temp hit 260, the "Trans fluid temp" light never came on. I don't know how hot it has to be to turn on, and I don't really want to find out.