Hello!

I am wondering if anyone else has seen this code on an '04 Limited with the V8?

I got this code after parking my truck for a week while I was on a business trip. 15 minutes after driving away from the airport it came on. Of course it turned on the VSC and TSC lights. So when I got home I pulled the code I got this code on my scan tool. I clear the code and the light, but the VSC and TSC come back on as soon as I put the truck into gear.

So I search, and search for anything in regards to this "Transmission Fluid Temp Sensor Bank A" and I cannot find anything on it for my model year truck. I go to my local Toyota dealership and with my VIN are not able to find a sensor on the transmission at all for temp sensing. The parts guy calls his contact at Toyota and they say that it is the temp sensor on the engine up by the thermostat. I have the part on order but am not completely convinced that this is going to be the fix.

Basically I am hoping someone out there has had the same issue to provide some input.

Thanks!
Mitch

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Did a quick search because I haven't seen that code before - I found this on a tundra forum:

According to the FSM, the P0710 code IS NOT an ATF OVERTEMP condition, it's a circuitry problem where the ECM is seeing the following:
Either (a) or (b) is detected momentary within 0.5 sec. when neither P0712 or P0713 is not detected
(a) ATF temperature sensor resistance is less than 79 Ohms.
(b) ATF temperature sensor resistance is more than 156K Ohms.

The P0712 code means the ATF temperature sensor resistance is less than 79 Ohms for 0.5 sec. or more

The P0713 code means the ATF temperature sensor resistance is more than 156K Ohms for 0.5 sec. or more

The causes for the P0710 code are listed as:
(1) Open or short in ATF temperature sensor circuit, or
(2) Defective ATF temperature sensor, or
(3) Defective ECM

No idea if it's the same as the 4Runner but I'm sure it's similar. I imagine @BlackWorksInc would be able to clarify and help out much more than I can!

Thanks for this Matt! This is information is about the same as what my internet searching pulled up too.

I guess my question is... is there a temp sensor on or in the transmission? Or is it truly on the engine where my parts guy told me it is at. If I am to ohm shoot wires I need to find the sensor and trace it completely back to the ECU. Thanks again for the additional information on the other codes! I did not realize that different codes are for different conditions.

Mitch

To get rid of the VSC lights you need to do a zero point calibration, I have posted how to do it, just do a search and it will come up.
Check your fluid level then do it.

I'm not really sure where the trans sensor is. Common sense would dictate that it would be on the trans....but the whole common sense approach has failed me in the past!

Hopefully someone else can chime in that knows a bit more.

I have not checked the fluid yet. I am just going to do a drain and fill because it is due anyway. But I did clear the vsc and trac lights using this video How to do a zero point calibration on LEXUS AND TOYOTA VSC ,TRAC OFF - YouTube The pins that I used were 4 and 14 being the only difference in the execution of this video.

Time will tell if my code comes back. I am still wondering why I tripped a code to begin with.

Thanks @BOSMECH for the pro tip about clearing codes and vsc. I never knew that about this truck! I love forums!!

Thanks @BOSMECH for the pro tip about clearing codes and vsc. I never knew that about this truck! I love forums!!

No problem that is what we are all here for, and was easy as heck wasn't it.
I do it everytime a code comes up and takes less then 5 minutes.
Just think what the dealer would have charged to do that.

I'm not to familiar with Toyota's tripping the P0710 DTC and this week we're having issues with TIS so I am sorry that I haven't been able to contribute too much to this thread beyond what other members have chimed in on. I would need to look at the details of the DTC and some other stuff in the FSM a bit more in detail to be more accurate in my assessment.

Thanks! If you think of it when your system is back, I'd appreciate any info you can find about it. I have driven it twice now to work think week and the code has not returned.... I am gun shy now, and I would like to know how to fix it if it comes back. Thanks again.

This is the same code I am getting, did you ever find a fix? And did anyone ever locate the sensor?

The tranny temp sensor is underneath the tranny case, on the passenger side.
Easiest way to find it is look for the tranny fluid cooler return line under the rad and follow it to the tranny. The sensor is threaded into a union which is threaded into the tranny. Should be the same location on both 4speed and 5speed trannies

Definitely did not see a sensor anywhere near the return line. Just got the P0713 on my 06 v8 4wd. Comes on after reset if I drive longer than 20 minutes or so

Bump.

Hoping to get some troubleshooting help here. Code is p0713 on a 2006 Toyota 4Runner v8 4wd. I have techstream now installed. Found similar all data printouts but for the 03-04 models

I guessing a bad transmission temperature sensor, there are other things it could be all related to transmission temperature but I would start with replacing the sensor, if the code come back after clearing it.

P0713 Transmission Fluid Temperature Sensor A Circuit High Input

Have you tried clearing the code to see if it pops back up?

I’ve cleared it numerous times and it always comes back. So one thing I did confirm driving around looking at live data on techstream is that when I start it cold, sensor 1 reads at ambient temperature. It shows it warming up and around 120-130 degrees, it drops to -40, which what I’ve read points to an open in the circuit. Then it throws the code shortly after that.

My best guess right now is that once the sensor reaches a certain temp, it stops working.


EDIT:
Found the problem. Techstream is a pain to easily run and check live data so I set up custom user defined PID's on OBD Fusion to read ATF 1 and ATF 2. Sure enough sensor 1 kept reading -40. I took my phone under the car while it was off and ignition on and wiggled the harness connector. readings would come in and out. I disconnected the whole harness from every trans sensor so I could pull it down enough for me to work on. Sure enough, a wire had soft severed off the plug. I believe this happened when I did the engine replacement. I pulled the plug apart, re crimped the wire to the needle, reassembled, and had a happy sensor. All good now.