Low coast brake Solenoid??? - Nissan Forum

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post #1 of 3 Old Jun 19th, 2019, 10:28 AM Thread Starter
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Posts: 15
Low coast brake Solenoid???

I have a 2005 4.0 2wd Pathfinder having trans issues. I have a code of P1774 Low coast brake solenoid.
Question is I see few different options for replacements - where and/or how do I find what "ohm" is needed?
Also - where can I get a replacement at? RockAuto is out of stock and has been for awhile now.

Thanks in advance!

Last edited by indymaxima; Jun 19th, 2019 at 10:31 AM. Reason: spelling
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post #2 of 3 Old Jun 19th, 2019, 01:31 PM
Joined: Dec 2018
Posts: 17
Low coast brake Solenoid???

Iím now expert, but there are some things that Iím scared to skimp on. Things involving brakes fall into this category. Iíve been burned a few times.
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post #3 of 3 Old Jun 20th, 2019, 02:04 AM
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Usually, the only time the solenoids go bad is when they get contaminated with "sludge" due to the engine coolant/ATF cross-contamination that occurs because of the "infamous" radiator integral trans cooler failure. When AT solenoid codes trigger that are not due to the cross-contamination issue, many time it's not the solenoid but the pin track for the circuit that cracks and breaks. The YouTube vid I linked below gives a lot of good information regarding the RE5R05A valve body. At around 15:00, it will show a picture of a broken pin track and discuss it. These pin tracks can be repaired with some competent soldering:

BTW, I believe your Pathfinder has the 20-40 Ohm (a.k.a. "High Ohm") Low coast solenoid. The "Low Ohm" solenoid was used in Infinitis, only, if I'm not mistaken. Cobra Transmissions should have that part, if you need it:

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Last edited by smj999smj; Jun 20th, 2019 at 02:15 AM.
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