Transmission line high pressure error?

Tiny
MICHAELMAXWELLPT2008
  • MEMBER
  • 2008 CHRYSLER PT CRUISER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
Okay, the error I'm getting is the transmission line high pressure for a long time. I think is what it said. Now my transmission is in limp mode. I was told it was the computer so I got a new one that worked for about 3 weeks and then while driving the temp gauge shot all the way to the red and so I shut it off for a while and it put it into limp mode. Before I shut the car off I got out and was able to open the radiator cap and it wasn't even hot at all. I was able to reset the computer with the scanner I have and the car drove for about a week and now I can't get it out of limp mode. I need help badly. Also, I should also put that my transmission is out of a 2005 pt I don't know if that's my problem. The transmission I had in it before had a extra plug that went to a sensor but the new one doesn't have the sensor can anybody tell me what the extra one on the 2008 is and if it will cause my car to be put I to limp mode any help would be great. Thank you and have a good day.
Wednesday, August 6th, 2025 AT 6:13 AM

8 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Can you tell me the code number? that would help. Here is the location of the line pressure sensor is this what is not connected to the 2005 transmission? If so this will be the problem. Please come back with the code so I can check it out further for you. If it does have a the sensor and you change it out be sure to clear the codes, also please start a new question for the overheating issue.

we only handle one problem per thread, please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Check out the images (below). Please let us know what happens.
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Wednesday, August 6th, 2025 AT 12:16 PM
Tiny
MICHAELMAXWELLPT2008
  • MEMBER
  • 8 POSTS
Okay, I'm sending a pic of the codes well it won't let me send the pic so the codes are
P1745
P0935
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Wednesday, August 6th, 2025 AT 8:39 PM
Tiny
MICHAELMAXWELLPT2008
  • MEMBER
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P1745 and p0935
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Thursday, August 7th, 2025 AT 3:44 PM
Tiny
KEN L
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Yep, you would get these codes when this sensor goes out.

P1745 - Line Pressure High
P0935 - Hydraulic Pressure Sensor Circuit High

Clear the codes once the repair is completed. Let us know how it goes.
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Thursday, August 7th, 2025 AT 6:50 PM
Tiny
MICHAELMAXWELLPT2008
  • MEMBER
  • 8 POSTS
Can you show me where it would be at on the 2005 rl transmission please?
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Friday, August 8th, 2025 AT 1:08 AM
Tiny
KEN L
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Check the image in the post above :)
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Friday, August 8th, 2025 AT 11:06 AM
Tiny
MICHAELMAXWELLPT2008
  • MEMBER
  • 8 POSTS
Ok well I foondi out that the 2005 transmission has only 4 wire plug on it and the 2008 has 5 plugs and that I would need to customize my wire harness. Do u know how I could get my 2005 transmission to work with my 2008 pt
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Monday, August 11th, 2025 AT 6:12 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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I don't know if that can be done, the computer system is designed to work with the five wire. Here are the wiring diagrams for both. The 2008 is first. Check out the images (below). Let us know how it goes
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Monday, August 11th, 2025 AT 8:25 AM

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