Question about Jeep Grand Cherokee
Btoh codes are refer to the Transmission Control Module; the sensor on the right rear of the case is the Line Pressure Sensor. This tells the trans controller how much pressure is in the line pressure circuit since the line pressure is variable controlled by a solenoid.
The pressure switches for the clutch circuits are all in the solenoid/pressure switch assembly (solenoid pack) that's mounted to the top of the valve body. The code could be caused by a problem in the trans controller, the wiring from the trans to the controller, or most likely the switch itself. check over the wiring, and if its ok I'd replace the solenoid pack on top the valve body.
Believe it or not, but the governor pressure solenoids have been causing problems in Chrysler transmissions since the early 90's, and they still haven't fixed it completely.
All the solenoids are located on the valve body. Should only have to unhook the shift lever, unplug a couple of things and then drop the pan. A few more bolts later and the valve body should be out ready to work on. Shouldn't require major surgery to fix. To get the solenoid pack out, you need to drain transmisson and remove pan, remove trans filter, disconnect main harness from trans (located on driver's side just above pan level, it's gray and has release lever), remove valve body (6 x 8mm bolts), remove and replace solenoid pack (mounted on top side of VB with 15 bolts).
The solenoid can purchased from a transmission parts supplier (not the dealer), here's one: Code=45RFEsolenoid
Posted on Jul 19, 2010
You will get all the required parts for your jeep Cherokee at
click on the link above and get the required part.
There is no individual sensor to replace to fix this problem. The o/d pressure sensor is inside the solenoid pack and the complete solenoid assembly would have to be replaced if you want to change it. The solenoid pack and it retails for $534.00 cad. You have to remove the pan and valve body to replace it. The book time for replacing it is1.5 hours.
the pressure solenoid and sensor they are located on the valve in the transmission and you have to drop the transmission pan to access them .
there is a solenoid assembly that has the tcc solenoid and the overdrive solenoid the code you gave is for the overdrive solenoid but the solenoids come as an assembly and attach to the top side of the valve body and they are the most likely cause of this code.
the valve body is inside the transmission and is directly under the transmissions oil pan. you'll also want to check the wiring going to the transmission as well if you haven't done so already, if your uncomfortable with tearing into a transmission id recommend taking it to a reputable transmission shop or the dealer because you can cause more damage then you want for yourself if you mess it up and a transmission would run around $2500 if you had to replace it.
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Posted on Jul 19, 2010
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Posted on Jan 02, 2017
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