Question about 2000 Jeep Cherokee
DTC P1727 - 4c hydraulic pressure switch circuit- this is set if pressure switch doesnt close on command from the TCM(transmission control module)
There are wide ranging possible causes:
In order to diagnose the exact problem, you will need a diagnostic scan tool with transmission diagnostic capability. You will also need a transmission simulator to hook up to trans in order to test.
Without these REQUIRED equipment, about all you can check is for debris in the transmission pan, and ensuring that fluid level is correct. After that, the only way to determine which of the many reasons for this code being set is with use of above mentioned equipment. Unfortunately, due to the complexity of today's vehicles, including their multiple on-board computers,there are instances when the only way to properly diagnose a problem correctly is with a diagnsotic scanner. Without this, all you can do is replace parts in hope of repairing problem.
Posted on Jul 19, 2010
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Posted on Jan 02, 2017
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