Code p0721, where is the output shaft speed sensor located?

2008 HONDA ELEMENT
14,000 MILES • 2.4L • 4 CYL • 4WD • AUTOMATIC
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
I have the vehicle listed above. It’s showing a code p0721 saying my speed sensor for the transmission is bad. Do you know where the output speed sensor is on the transmission? A guy said it’s beside the transition dip stick towards the left is that true? Do you have videos or pictures of where it is? Is this where the transmission speed sensor is located across from? The transmission dip stick towards the left?
Jul 12, 2024 at 2:30 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

It is toward the front of the vehicle, mounted on the transmission. If you look at pics 1 and 2 below, that is what I was able to find to help locate it.

As far as the removal and installation is concerned, it is very simple. I attached the directions below as well. There is an O-ring on the sensor. When you install the new one, make sure everything is clean and free of corrosion on the transmission. Also, lubricate the o-ring with transmission fluid before installing it.

Just an extra thought. Take your time when removing the old one. They can corrode and be difficult to remove. Take your time and gently wiggle the sensor while pulling outward.

Let me know if this helps.

Take care,

Joe

See pics below.
Jul 12, 2024 at 7:38 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
So, it’s not beside the transmission dip stick towards the left? But upfront closer to the radiator up that way? Because a Honda guy says it’s where the transmission dip stick is, and he said if you look towards the left it’s right there beside the dip stick of the transmission.
Jul 12, 2024 at 8:33 PM
Advertisement
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
Okay, I found it, I have to take the air filter off to get to it right it’s under the air filter.
Jul 12, 2024 at 10:45 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
My car is jerking buckles at times my RPMs are going up my d light blinks. Well, I took it to Advance Auto Parts and a code came up saying p0721 it’s an output shaft speed sensor to the transmission. I bought a speed sensor, but I don’t know where it’s located. A guy said it’s on top of the motor and it’s located beside the transmission dip stick towards the left, is that true? Do you have any pictures or videos?
Jul 13, 2024 at 11:25 AM (Merged)
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Sure, the output shaft speed sensor is located on the case of the transmission. here are three images and instructions on how to change it out. Check out the images (below). Let us know if you need anything else.
Jul 13, 2024 at 11:25 AM (Merged)
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

I'm glad you found it. Did you have any issues removing or installing the new one? Has this taken care of the issue you were having?

Joe
Jul 14, 2024 at 7:14 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
Got a question for you now my Honda 2008 element throw a code saying shift malfunction E. What does that mean ????
Jul 28, 2024 at 6:07 PM
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

By chance, do you have the code?

Let me know.

joe
Jul 28, 2024 at 8:00 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
Yes, I will scan it tomorrow and give you the code. I will text you tomorrow.
Jul 28, 2024 at 8:54 PM
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
No problem whatsoever. I look forward to hearing from you.

Take care,

Joe
Jul 29, 2024 at 9:07 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
I’ve got the code.
Jul 29, 2024 at 9:08 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
The code is p1733. Saying shift malfunction E what does that mean?
Jul 29, 2024 at 9:12 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
The code is p1733. Saying shift malfunction E what does that mean?
Jul 29, 2024 at 9:12 PM
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

According to the manual, a P1733 indicates shift solenoid D is stuck on. That can be caused by a few things including dirt. Is the transmission shifting properly?

I attached the directions below for diagnosing it. Read through the directions and let me know if you are comfortable performing them.

Take care,

Joe

See pics below.
Jul 30, 2024 at 12:06 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
The RPMs are going up at times and the Honda will kick back like buckle back is the transmission going out? The d light is also flashing.
Jul 30, 2024 at 12:10 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
I took it to Honda dealership and they said the transmission is going out but you said it’s the solenoid could be dirty are they just saying that to make me buy a transmission h.
Jul 30, 2024 at 12:22 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
Can you call me so we can talk better you can block your number if that’s okay.
Jul 30, 2024 at 12:57 PM
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Ricky,

I wish I could call, but I'm not permitted. I'm required to keep everything online. As far as their determination, it is possible the transmission is failing and needs replaced.

Did they explain how they came to that determination? If there is excessive metal or clutch material in the fluid, the manual indicates replacement. But, I don't know if that is what they checked.

See pic below.

Joe

PS: I am heading to job 3 now. I will be back online after 10 eastern time based on your area code; you are in WV. I'm near Pittsburgh.
Jul 30, 2024 at 1:06 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
Yes, they drain my fluids didn’t see no metal or nothing but they didn’t even said anything that it could be the solenoids going bad or being dirty they didn’t even say that so Iam confused.
Jul 30, 2024 at 1:09 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
Where is the solenoid D at if it was dirty where would I have to change it so you know where it’s located so I could take it off and change it? Because I took it to Honda dealership and put it on a computer they never said anything about a solenoid D that’s what I told them that shaft D was coming up a code.
Jul 30, 2024 at 1:10 PM
Avatar
RICKEY68@
  • MEMBER
  • 18 POSTS
Thanks for calling me if you can try calling me again, Joe.
Jul 30, 2024 at 1:21 PM
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

The solenoid is located inside the transmission. I attached the directions below for replacing them.

I highlighted solenoid D.

Let me know if this helps.

Joe

See pics below.
Jul 30, 2024 at 7:19 PM