Where is the Transmission pressure sensor/switch located?

2005 DODGE CARAVAN
124,500 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
Avatar
LONER84
  • MEMBER
  • 4 POSTS
Hello, I need help. I am trying to find the location of the transmission pressure switch for my vehicle listed above. I have been unable to find any information online. Thanks in advance!
Image (Click to enlarge)
Attached Media
Oct 22, 2024 at 5:15 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

The PCM/TCM relies on three pressure switches to monitor fluid pressure in the L/R, 2/4, and OD hydraulic circuits. These components are integral to the solenoid/pressure switch. The pressure switches can only be serviced by replacing the assembly. (see pic below)

Let me know what codes you have so I can better pinpoint what you are dealing with.

Take care,

Joe

See pic below.
Image (Click to enlarge)
Attached Media
Oct 22, 2024 at 6:48 PM
Advertisement
Avatar
LONER84
  • MEMBER
  • 4 POSTS
The codes are P0700 and P0870. Thank you
Oct 23, 2024 at 7:29 PM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

The P0700 is a generic code that simply indicates there is a code, or codes stored in the TCM. The P0870 is the one of concern and I do see why you indicated the pressure switch. However, there are several things that can be setting that code.

I attached the diagnostics for P0870 below. Take a look through them and let me know if you are comfortable performing them.

Let me know.

Joe

See pics below.
Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Oct 23, 2024 at 8:16 PM
Avatar
LONER84
  • MEMBER
  • 4 POSTS
I ended up changing fluid, input and output speeds sensors and solenoid. So far it is shifting fine and no lights. I am around 100 miles in since maintenance.
Dec 4, 2024 at 7:47 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Thanks for the update. I'm glad to know if is working properly now. Hopefully, it will continue.

Take care of yourself and feel free to come back anytime in the future. Also, if things change, let me know.

Joe
Dec 4, 2024 at 7:14 PM
Avatar
LONER84
  • MEMBER
  • 4 POSTS
Thank you!
Dec 6, 2024 at 6:42 AM
Avatar
STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,223 POSTS
JACOBANDNICKOLAS is one of our best! Use 2CarPros anytime, we are here to help. Please tell a friend.
Dec 6, 2024 at 9:54 AM