Tundra PO705 HELP!!!!

Guys PLEASE HELP ME
I have the same code and not from these issues stated.
I changed the range sensor, changed the fluid, and have gone over every fuse in the truck with a meter and pulled related ones to visually see and test the fuse itself with a meter. I can not find any bad wires. All my lights work correctly. I also have seen each gear on my snap on scan tool(PRNDS). Every gear registers but drive(D). I can even see sport mode and + & - triggers on my screen in the scan tool. No Drive light on the dash and no sport gears on dash. I have changed my ground wire as well b/c mine looked like the one in the picture. I am 500$ in to this with no fix. I work in a custom shop and have for almost 15 years now. I am the foreman for the electronics part of our shop. So I am not a back yard mechanic. My brain hurts from this and every one else seems to have had the led revers light issue or a blown fuse. I have checked every thing in this form with a new switch. Please some one help me I have traced the wire from the range sensor to the ecu to the gauge cluster and even the connectors in between. I got nothing. Everything visually looks fine. I also have discovered that my OBD2 Ground (pin4) has 20+ Ohm resistance from ground on the bat. I also have very high resistance out of the BCM (where the fuses are located inside) 70+ ohms at ground resting fuses. So I am wondering if its a bad ground inside the truck somewhere. But I cant find one. Do any of you know of any other issues with this code. I currently lost my 4wheel drive too b4 it was a flashing 4Lo with cel and trac lights. now i have flashing 4LO and 4HI. and getting an abs code. scan tool says its LR sensor is bad. witch could explain the 4wd not working but the abs wasn't on till after the 4hi and 4lo started flashing together. i also get a abs pulse about 10 seconds after movement. I would apricate any advice. Im honestly leaning towards a bad bcm or ecu at this point.

2011 Tundra 4x4 4.6L

 

I think you would have much better luck posting this on the ask the Toyota mechanic thread .

 

Not sure about your truck not shifting into drive, but the ABS, CEL, 4Hi and 4lo lights all come on when you have a bad wheel sensor, which you say you do. When you lose one part of your braking system, you lose them all; like dominoes falling. I’d replace that LR sensor and go from there, you can find that sensor for like $10 on eBay, no need to pay $100+ for OEM in your situation.

 

Check out this thread, not tundra but for P0750 which is shift solenoid A code.
ihttps://www.yotatech.com/forums/f2/p0750-shift-solenoid-malfunction-47328/

If you reset the code does it come back right away? Or under what conditions.

Edit: ignore this P0750 is shift solenoid not P0705 which is transmission range sensor wiring malfunction.

 

The abs code is new.
The 4hi stopped working the day after I changed the fluid.
The truck only put out 2.5 qts and I put back in like 4.5qt
I got it w/ 200k on it and I now have 240k. But the very next day after the fluid change the 4hi stopped working. And started flashing with the 4lo and 705 code. The 705 and 4Lo blink have been on been around for about 8 or 9 months now. I paid a local transmission shop to swap the range sensor about a week after I changed the fluid.
And for the gentleman speaking about the solenoid code thats not it I can also see them functioning in my scan tool. And the truck seems to shift fine for 240k. The very first time I got the code was when I paid some one to do the water pump. When I picked up the truck it had the cel and trac lights on and 4 lo light blink. The guy cleared it with the same scan tool I have and said it was some kind of transmission code. It didn't come back for probably a month or 2. Then when I cleared it then it took a little while to come back on. But I have had it actually not come up and drive the truck literally 150miles and it doesn't put the code up. Still no D light on tho. It hasn't done that in a few months tho now I'm going to post some more stuff I found later today. It may be related but I honestly don't think it is.

 

There is a lot going on here.
1. ABS Code - bad wheel speed sensor?
2. Transmission Fluid level ok? - you put in more than came out, but did you check for proper level at proper temp? I'm assuming yes but you kind of left that open to interpretation.
3. P0705 Code - Range sensor circuit malfunction.
4. D Light not on - indicator light or something in your scantool or both?

What do you want to solve first?

@sicCAS you did not state what the code was for in your original post. I googled it on my phone and apparently came up with incorrect information at first cause I was being dyslexic.

 

@Dalandshark
Yes there is a lot going on lol.


ABS is for sure a bad sensor its my left rear according to my solus edge

My fluid was checked the next day after about a 20 min drive and it was touch over 1 qt over. I knew 2.4 qts from a transmission with almost 13 was defiantly not enough. From what I found on the interwebs was close to a gallon should come out. So I put about 4.5 back in and only got about a quart out the next day.

Yes P0705 Is the range sensor/neutral safety switch. And its new

D still doesn't come on even with the code cleared. PRN S All light up but the gear indicators screen for S only comes on for a second then goes out.

My next step when I get a chance is I am actually going to probe my D wire at the ECU and the range sensor. I have only visually looked at it.

I can see all my gears turn ON in my SolusEdge But Drive.

I am thinking the 4HI flash is from the ABS Sensor and 4WD Does not work but it did b4.

I found a a nest in my fuse box that I knew was in there and today repaired all that but it was a ground for the starter relay and my 2 hot wires for my fog lights. I replaced the wires but that was just me fixing sum stuff I knew needed done and did it while I was looking for any other issues. The coating was chewed off but the wires them selves were intact but i still changed them b/c who knows how long it was exposed. Didn't fix my problem (did not think it would) but made me feel better knowing it was done.

 

@Lovetrucks
do you mind tagging the person or sending me the link to it.
please n thanks

 

@Ruggybuggy

 

Kind of sound like your digging a big hole for yourself. Address one problem at a time. Get the transmission code addressed first. Set the transmission fluid level correctly using the proper procedure. Do not guess. Do you have access to a wiring diagrams? Get Techstream.

 

@Ruggybuggy
The only thing I m really worried about is the 705. I have changed the range sensor. The fluid is properly adjusted the following day and i have diagrams and service manual pdf files i have been reading through. The only thing I have not done is phiscally test the D wire from the ecu i have only visually looked threw the system for corrosion or unplugged connectors.

TC Code Detection Item Trouble Area MIL*1 Memory*2 P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input)  Open or short in park/neutral position switch circuit  Transmission control switch  Park/neutral position switch  ECM

 

Did you put a new range sensor in and was it adjusted correctly? I would get a copy of Techstream, it will help alot.

Did you say that scan tool displays the D when selected?

 

@Ruggybuggy
I had a transmission shop put the range sensor on bc I couldn't get it off (aluminum on steel) and they had a tool to remove it easily, only cost me 140$. But I have done everything else.
If it was out of adjustment it would show the wrong gears or 2 on at a time from what I understand from my service manual. My scan tool can see all gears switch to ON in my data display but drive does not switch to ON. All the others do and are correct. And light up on the dash.

Should I....
Tturn the key on with solos plugged in
apply ebrake
put in D
loosen 10 mill on top of range sensor and try to turn it to see if D turns to ON? or even lights up on the dash.
I haven't tried this but have thought about it.
Just asking. I do electronics, accessories, and interior not mechanical work. Other then intakes and easy shit like that. I will do engine swaps but only on old hotrods and stuff. I just dont daily mechanic u know

 

If your scan tool isnt seeing ON when in D then the TCM module isnt seeing drive either. I would do as you suggest. Mark its location so you can get it back to where it was initially if you have to. Have someone in the truck to watch for D to appear as you more it. Key on engine off, parking brake on, on level ground and with shifter position in D.


If you can't find D I would look at the wiring diagram and jump the wires at the Range sensor and see if I could get D to display.

My guess, a bad range sensor but jumping the wires would confirm it.

 

Its oem but its ebay sooo.. yea we are definitely thinking the same route I will check back with with what I end up finding. My wife mainly drives it so its hard for me to have it and the time to mess with it.
Thank You @Ruggybuggy