I have the non plus version of this that I use on my Navigator for FORscan programming but it won’t work on iOS or Toyota... looks like I’ll be stepping up to the plus. Thanks for saving me from the rabbit hole.
Towing with the 8 speed transmission question
- Thread starter vegasfj40
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Nice. Do you mind sharing how you got the TC lockup to show? I wonder if it's 8-speed specific or if I just missed it? I'm surprised you can lock up the TC below 5th gear... the FSM implies that isn't possible (at least through the 2018 MY). See below. I wonder if that changed with a software update, or if the TC lockup status isn't entirely correct (i.e. it's reporting that TC lockup is "available" but not necessarily "engaged")?
BTW for those with the 8 speed I looked up some values you can use when setting up your gauges. This is what the FSM says about transmission temp for both the 6 and 8 speed:
Min sensor temp -40F
Max sensor temp 339.8F (171C)
ATF light come son at 302F and goes off at 275F
If ATF > 266F and engine coolant > 203F then the transmission will lock-up into 3rd gear until ATF temp < 230F and engine < 203F
For the 6 speed: When the ATF temperature is normal, transmission lock-up occurs in 5th or 6th gear with the shift lever in D or with the S6 range selected, in 5th gear with the S5 range selected, and in 4th gear with the S4 range selected.
For the 8 speed: When the ATF temperature is normal, transmission lock-up occurs in 5th, 6th, 7th or 8th gear with the shift lever in D or with the S8 range selected, in 5th, 6th or 7th gear with the S7 range selected, in 5th or 6th gear with the S6 range selected and in 5th gear with the S5 range selected.
Seems like 266-301F would be "yellow" and 302F+ would be "red". How you set up your gauge warning ranges is of course up to you.
Side note: Here's a slightly old screenshot of my default dashboard. (I've updated my ranges so the numbers end in 0s now). GPS speed is nice since oversized tires put my 5% under on the speedo. Nevermind the gear - 1-6 shows up correctly, but P/R/N are weird. 14th gear is apparently parked.
Thanks for sharing this information. . .very helpful. The TC lockup PID is called "Status of the Lockup".
Are you aware of a PID that shows whether the transmission is in "D" or "S"? I've looked at all the PIDs and nothing is obvious.
Which PID shows the instant fuel economy? I've tried a couple to no avail.
Also, for my vehicle (2019), the TC Temp fluctuates quite a bit, and shows values that can't be correct (like 20 degrees when it's 80 here in Tampa).
My current layout. The TC lock indicator is nested with the gear display.
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“Status of the Lock Up” in ODBLink (using the same MX+ listed above).
Thanks for posting the temps and lockup information, @linuxgod . I have witnessed TC lockup in 4th and 2nd. 4th was in D, 2nd was with the Transfer Case in Low, I’m pretty sure (was a while ago). With the 2nd gear one, TC temps dropped (long steep slow uphill grade).
I’ve tried, and haven’t figured out how to get GPS speed working on my 20.
Thanks for posting the temps and lockup information, @linuxgod . I have witnessed TC lockup in 4th and 2nd. 4th was in D, 2nd was with the Transfer Case in Low, I’m pretty sure (was a while ago). With the 2nd gear one, TC temps dropped (long steep slow uphill grade).
I’ve tried, and haven’t figured out how to get GPS speed working on my 20.
For your gear display, try “Status of the Shift Status...”. I haven’t seen anything strange using that PID.
“Status of the Lock Up” in ODBLink (using the same MX+ listed above).
Thanks for posting the temps and lockup information, @linuxgod . I have witnessed TC lockup in 4th and 2nd. 4th was in D, 2nd was with the Transfer Case in Low, I’m pretty sure (was a while ago). With the 2nd gear one, TC temps dropped (long steep slow uphill grade).
I’ve tried, and haven’t figured out how to get GPS speed working on my 20.
Go to the GPS section of the PID menu and try “GPS Speed”.
Yeah it's not a Toyota PID, it's a generic OBD Fusion. GPS->GPS Speed
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Fuel->Instant fuel economy. It's not an SAE or Toyota PID
ATF degradation is supposed to indicate the condition of your transmission fluid. There’s not much info available, but I believe it increases based on ATF being excessively hot.
@Hants how do you change the ring color to show the TC is locked/unlocked?
Thanks.
Here’s how I did it...
Value label is off on the Frame screen.
Fill is enabled on the Range screen.
These settings display a full green ring when the TC is locked.
Updated layout.
I see "Status of the Shift Status / Lo or Hi". Seems like that's saying 4Lo or 4Hi, not torque converter locked/unlocked?
FWIW I vaguely recall @cruiseroutfit not worrying about transmission temperature in Monica until they exceed 250F. I know they have supplemental cooling in addition to stock but it’s a good reference.
Interestingly enough, Toyota STOPPED including the aux transmission cooler on all Tundras in 2019. Not even an option. A downgrade to me, personally that I’m glad did not carryover to the Cruiser.
Interestingly enough, Toyota STOPPED including the aux transmission cooler on all Tundras in 2019. Not even an option. A downgrade to me, personally that I’m glad did not carryover to the Cruiser.