ECU TSB Update

Not yet. I still want to at least try my local dealer for now until I can get to speak with him. I have so much going on currently that I am lucky to even have time for the dealer. I’m in the middle of PA school interviews and my last semester here at school (finishing a semester early), so time and finances are a bit strained currently.

I will be contacting him though in the near future especially if I can’t get my dealer to get this done. They seem willing to work with me though I just gotta recreate the issue or maybe showing them the specific TSB’s will do it.

 

I took mine in while I was on vacation and had them update it. 2018 6 speed build date 12/2017. I just picked it up today and it is much better. Throttle response down low is much more linear, shifting is far easier and smooth and the power delivery is much smoother all the way around.

 

Happy to hear a dealer helped you and the 18 drives better. Can you say which dealer you went to?

 

Oh so is there a problem with shifting from 1st to 2nd? I thought i just sucked at shifting. First manual car but I driven manual civics and mustangs and no issues. I cant shift smoothly from 1st to 2nd and i have to quick shift 3rd to 4th for the car to be smooth. How do I approach the dealer about this?

 

Whats the TSB number?

 

My build date was mid-July 2018 (on my birthday!) and it did not have the latest firmware version. The update was helpful in many ways, but I don't know how it could have an impact on shifting...unless you mean the engine is more responsive to throttle input? Cuz I noticed that.

 

Walkerton Toyota in Ontario Canada. I bought the truck there about a month ago. They know I am a tech myself so it didn't take too much work to talk them in to doing the update.

 

I know it sounds weird and it makes no sense with the manual trans, but before I had to be very delicate with the clutch and throttle input to get a nice smooth shift. Otherwise it would want to clunk and jerk it just didn't feel natural. Out of all the vehicles I have owned only 2 have been auto the rest all manual so I can drive a stick without thinking. Before the update though I had to pay attention and put thought into each shift. Now it just feels natural the way it should. The only thing I can think of is that the tuning somehow is changed at lower rpm to help with that.

 

It may sound weird but you're absolutely right. The factory calibration never felt natural, so much so that it made driving my truck more of a chore than a pleasure.
Enjoy!

 

Exactly. Some of the clangs and bangs that came from the driveline before would make me cringe. Unless you shifted slow and easy like an old granny there was no way around it. Now its nice and smooth the way it should be.

 

Just picked up my 2019 6MT on Saturday morning. (Took almost 3 months to get and changed from an '18 to a '19 in the process!) Build date was 9/18. I think I feel what you guys are saying about the 1-2 shift being a bit clunky. But it could also be just me getting used to a new vehicle's clutch/gearing/etc. Going to keep driving for now as it is and see what I think.

I picked up a

$15 Veepeak Mini Bluetooth OBD II Scanner Auto Check Engine Light Code Reader Car OBD Diagnostic Scan Tool for Android (Incompatible with iOS)

nice and low-profile OBDII adapter, but could not get my phone to connect to it (never would show up when scanning for bluetooth devices). Luckily I still had an older and larger/chunkier one laying around, so I plugged that in instead and was able to connect to it. I bought OBD Fusion from the play store and ran the report to get my ECU info. It comes up with two calibration IDs and not sure which is the one we are concerned about.

They both have header "Calibration ID (ECU 7E0)":
8966304B4000
896650408000

As an aside, what are you guys running for OBDII adapters? Wonder if I should pony up for the name brand ScanTool or Kiwi 3 one rather than a Chinese knock-off. This one is probably going to go back to Amazon.

 

Congrats on the new Taco!

My guess, looking back at the TSB and other threads is that the 2019 ECUs are the 04B40 number? It is not following any logical pattern, but. . .

Early 2016 MY: 04B10 (04B13 after updated)
Later 2016s: 04B11 (04B13 after updated)
2017s: 04B12 (04B13 after updated)
2018s: 04A70 (04A71 after updated)
2019s: 04B40?

Possibly give the motor a bit of time to break in and for the stock tune to settle in? It would be unfortunate for the last run of 2018s to have 04B71 and the 2019s to have something that reflects an earlier version? We're still waiting for confirmation of what the two folks that said they have 08/18 builds have for Calibration IDs after the dealers said that they were up to date.

If you are getting an adapter for future use, customizations, and logging, it might just be just be best to get an official Tactrix cable? It's a little pricey, but at least you can do the Carista customizations and any TPMS programming at home? It is unfortunate that for the cost, it isn't both BT for general use and USB for writing.

For general BT use, if your old one is still working, I'd stick with that. My 5yr old one that I got for peanuts is doing well with Torque Pro and Carista.


Also. Ditching the accumulator has a big effect on the clutch engagement and smoothness, IMHO:
https://www.tacomaworld.com/threads/mt-accumulator-delete-and-bs-thread.568303/

 

I've been watching the thread since it was made, so I definitely have seen much info on the Tactrix! Maybe I'll get it in the future, but right now I just am sticking with a BT one so I can use it with my phone. Nice to be able to easily read/clear codes and other info without having to drag out a laptop. Also, can then create dashboards and other stuff with Torque Pro in the future if I want. The issue with my old adapter is that it is 4-5 inches long and so sticks out a long ways. I'd be afraid I'd kick it and break the OBDII port if I left it in all the time to run dashboards off of or just had it plugged in while driving. That low profile BT adapter I linked was perfect for size, but of course I do need it to work...

 

seems to be following a logical pattern, 2016 and up starts at 04B10 and keeps going up. 2018 they added the forward sensing crap and needed more stuff in the ECU so they started a new code at 04B70 and seems to be going up from there. 04B40 is an the newest AT ECU code

 

But, @deusxanime has an MT?

 

Yeah. My old BT adapter sticks out also. I know that it isn't a real drain on the battery to leave it attached, but the length is a good reminder for me to unplug it when getting out.

 

Yep, it is definitely a 6MT, my shifter and third pedal assure me!

 

Congrats on the new manual truck, you chose wisely!!! Off topic, since you have a 2019 did you have a chance to look in the bed and see if you still have the storage box cubbie on the left side?

 

Did they remove it for some reason? I guess I haven't looked since I thought the only change for '19 was the extra USB port in the console. I have my original wheels in the bed still that need to be unloaded (got T4R Pro rims put on and kept the originals to probably put snow tires on them for winter), so I'll try to check when I do that.

 

That is what I was hoping to find out, I recall reading a post somewhere on here and it sounded like it was no longer there. Pro Wheels look great on these trucks!