Codes p0700 and p0715

Hi,

The code, P0700, is generic normally indicating there is a code stored in the transmission control module. Transmission functions are controlled by the PCM, powertrain control module. The P0715 indicates an issue with the input shaft speed sensor. The idea that it doesn't move has me concerned, meaning this could be the result of internal damage. However, it could be as simple as an electrical connector, but the only way to confirm is to perform specific testing.

If you look below, I attached the diagnostics for the codes. Take a look through them and let me know if you are comfortable performing them. Additionally, here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

The last pic below shows the location of the main shaft speed sensor. Make sure to check the connector and wiring at that point.

Take care and let me know if this helps.

Joe

See pics below.

So, i went to pull it inside my garage (there is also something i forgot to mention before, car would slightly move if you revved it up in gear, so not completely stranded, similar to when fluid is low). Anyways, i said let me try something, i knew it would move okay if you put it in first/low gear, so i did that then moved it while i was driving to second and then to normal D and it drive fine. If you play with the gears, it would take time but eventually goes in reverse. So am going to change the fluid, filter and see first as the whine am hearing could be from the external filter. Will keep you updated.

So removed battery and tray to check on solenoids and clean them. All were clean but turned out that sensor was not even connected. Connected it and car now goes in reverse immediately, a tiny delay in drive, but i still think is bad and filter needs changing so will do that once filter is here.

I only have a VSA code though, check engine light and the 700 and 715 codes are gone. It is code 94-1.

Hi,

That's good news. Glad to hear it was a disconnected connector. As far as code 94, you are correct. It is related to the VSA/TCS control valve sensor.

I attached the diagnostics below for this code. Take a look through them and let me know if you have questions.

Take care,

Joe

See pics below.

Thanks. Where is this sensor located though? lol

Hi,

No problem whatsoever. I attached a pic below. Let me know if that helps.

Joe

See pic below.

First steps good, step number 6 i connected positive of multimeter to pin 2 and black connector of multimeter to body i get something like 1800, my voltmeter was on continuity. Starting at #7 i don't understand what they are asking, and what connector has 2 wires?

I cannot find where online this sensor to see if it is the right one, I am testing, has two screws, removed and it has like a spring loaded inside with a lever.... can't find anything online in TCS or VSA sensor. Can you provide a part number?

Hi,

The VCA/TCS sensor is basically the throttle position sensor. See pic 1 for definition.

If you look at pic 2, it shows the sensor and valve actuator. Both are on the throttle body.

The sensor will have 3 wires and the valve actuator will have 2. That is what you are looking for in step 7. It's the control valve actuator. (Pic 3 / Letter A is the sensor and letter C is the control valve actuator)

As far as the sensor, chances are you won't get one from Acura. I looked up an aftermarket and found Dorman makes it. I have always had good luck with their parts. Here is the part number. Dorman part number 911-753

Let me know if this helps.

Take care,

Joe

See pics below.

Is it normal for the inside part in the throttle body not to move by hand? When i remove the sensor i can remove the lever on the sensor itself but the part on the intake doesn't move hand in either direction.

Also, when i checked the part number the harness connector is round not rectangle like mine and the inside looks different.

If i did it correctly i removed the 2 wire harness from the actuator and connected the grey/white to power battery and the other to negative, then remove the 3 connector wire from the sensor and turned ignition on, checked volts on middle pin of sensor harness and body ground but there was nothing.

I reread the directions and it sounds like you did it correctly. If there is no power, there must be an open between the control valve sensor and the VSA control unit. If the wire has continuity and doesn't have an open, it sounds like the control valve sensor is bad.

Let me know what you find.

Joe

Yes, that's what am thinking. I ordered one. How does the throttle body have anything to do with the TCS though that is what i don't understand? Traction control and VSA i understand, but some people even report transmission shifting issues when these are bad.

I ordered a whole throttle body just in case.

Hi,

When slipping/spinning is sensed, the PCM lowers the engine torque by controlling the throttle. If you ever spin the wheels, pay attention and you'll notice that it doesn't matter how much throttle you give the vehicle, RPMs will remain the same (or at least not respond how you would expect).

Let me know if that helps.

Joe

Replacing the whole throttle body solved the vsa issue. Thanks for your help

Hi,

First, you are very welcome, and thank you for the update. I'm glad to hear you got it fixed.

Please feel free to come back anytime in the future if you have questions.

Take care and I hope you have a nice Christmas.

Joe