I had my Honda checked because the engine light came on and it came back with the codes (P700)(P720) I know I need to replace my transmission speed sensor but what is the other code tell me.

Sounds like you have a failed transmission here

po700 is transmission control problem and p 1884 is manufacturer control transmission. both codes are the same, get p0700 fixed and it should fix them both. fot p0700 you need to have the transmission computer checked for the problem code to tell what is wrong.

replace the output speed sensor on you 4 speed trans, 3.3 engines only have 4 speed transmissions. The output sensor is located next to the transfer gear. Or if you are looking the two sensors, it would be the one on the right.

P700 = PCM has a transmission code in the EATX controller, and P0731= Gear ratio error in 1st. Replace the output speed sensor and clear the codes.

the car is likely stuck in second as that is the default gear when there is a transmission issue.

Is the check engine light on? I suspect it is.

Have you checked for transmission codes? if so what are they?

There are several things that go wrong with these that are fairly simple to fix and cheaper than the solenoid.

To replace the solenoid pack (by the way I have never had this fix a transmission problem) you are going to remove just about everything on the drivers front of the engine compartment. The air filter housing, computers, battery, fuse boxes, etc. Then you will be ably to see the solenoid pack located on the front of the transmission. You will then need to remove the cooler lines and the input speed sensor from the transmission. The three bolts for the solenoid pack can be removed with a 10mm socket. A new solenoid pack can be purchased from the dealer.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

this sounds like same problem i had and it ended up being the crankshaft position sensor.

P0720 almost always points to a problem with the output speed sensor itself. The sensor is located on the top of the transmission near the rear. It's held in place with one 10mm bolt. You may be able to access with a long extension and a 10mm swivel-socket. If not, you'll need to remove the air box. You'll find the sensor semi-hiding under the wiring harness that runs across the rear portion of the top of the transmission.

P1529 is simply an indicator that the transmission control module (TCM) requested the engine control module (ECM) to turn on the check engine lamp.
Let me know if this helps or if you need mor help.

You need to check the tcm for codes too. The s3 light is like the check engine light for the tcm. The VSS code might be your problem.

Hi, a few questions 1st. Did your mechanic check for engine codes? Is your Honda a v-6 or 4 cylinder?
The flashing D4 light indicates a possible transmission malfunction. You should avoid rapid acceleration until the cause of the light blinking is determined.
If you have the V-6, there is a diagnostic port to connect a scan tool to read any stored engine codes that have turned on the check engine light. This port is located behind the ashtray in the center console (most cars did not have this til 96).
If you have the 4 cyl engine, there is a service connector located under the dash on the pass. side. Inside the connector is what looks like a 2 wire plug should be attached. Take a paper clip, unbend it, and insert the 2 ends of the clip into the connector to 'jump' it. Turn the ignition switch to the on position (don't start the vehicle), and the check engine light will flash. Count the flashes, short flashes are for code #'s 1 to 9 (single digit code), a 2 digit code will be a long flash for the 1st digit, followed by a short flash for the 2nd digit. If there is more than one code, they will be separated by a pause. They will repeat so you can count them and write them down. Let me know what the code #'s are so I can help further. Curt

the P720 (which i'm guessing is suppose to be a P0 or 170 means its transmission related...i dont know what the 20 stands for thats the exact specific code/problem but it gives you an idea...the two P1600 codes are Manufactur made and they are both about PCM-Auxiliary Devices..

So i'm guessing that the one that is making your car not move is the P700 code..

hope that gets you started

If the speedometer is not working, try replacing the cable from the back of the speedometer to the engine or the transmission.