P1745 trans code - Rubicon Owners Forum
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post #1 of 4 (permalink) Old 08-15-2019, 12:34 PM Thread Starter
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P1745 trans code

Code is for line pressure too high for too long. Could be a bad pressure/temp sensor, bad solenoid, wiring issue or pcm issue. 2010 jkur, 42rle trans, 79000 miles. Any one else experience this?

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post #2 of 4 (permalink) Old 08-16-2019, 08:17 AM
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That's a new one for me, the 42rle tranny is common to the TJ/LJ (and other models), maybe the TJ FSM has some troubleshooting info?


Were you able to clear the code?

John - WB5THT
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post #3 of 4 (permalink) Old 08-16-2019, 09:19 AM Thread Starter
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No John, it did not clear with battery disconnect. It is daughter and son in law's jeep, they were on their way to meet us in Silverton, they made it 100 miles when it went into limp mode. They rented a car in Blythe, drove back to Brawley, and got their Ram pick up and continued their vacation trip....sans Jeep. They are back home now, will probably have the heat/pressure sensor and the solenoid replaced at a trans shop. Dealer wanted to replace the entire unit......$$$$$$ If the sensor and solenoid don't fix it, then wiring and/or pc m could be suspect. Just wondering if anyone else has been through this process.
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post #4 of 4 (permalink) Old 08-16-2019, 08:33 PM
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I believe with that code you have to reset the line pressure counter along with a dtc clear for it to reset. A battery disconnect won't do it.
I would think the line pressure solenoid was/is stuck. You are on the right track.
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