JF016E CVT Transmission Valve Body Assembly with Solenoids

The JF016E (also cataloged as RE0F10D) is the CVT that Nissan and Infiniti put behind the 2.5L and 3.5L from roughly 2012 to 2017, and the valve body is where most of these units die. The pressure control and step-motor circuits wear the bores, the solenoid screens load up with clutch material, and the driver gets the classic list of complaints: a shudder or judder under light throttle around 30-45 mph, a flare when the belt ratio should be holding, a delayed engagement into drive after a cold start, and eventually a P0841, P0847, P17F0 or P17F1 stored in the TCM. Once the bores are worn, cleaning the solenoids does not bring the pressure back.

This is a complete valve body assembly with the solenoids already mounted, replacing part number 31705-28X0B. It fits 2012-2014 Nissan Altima 2.5L, Murano, Pathfinder, X-TRAIL, Teana and Elgrand, Infiniti QX60 and JX35, and the Renault Latitude that shares the same JF016E unit. Confirm your existing valve body carries the 31705-28X0B casting or a superseding number before ordering, because Nissan ran several CVT variants in the same years and the JF011E and JF017E bodies are not interchangeable with this one.

On the bench the job is straightforward but unforgiving of shortcuts. Drop the pan, pull the filter, and photograph the wiring routing and the step-motor position before you disturb anything. The step motor arm has to be set back into the pulley ratio lever exactly as it came out or the unit will not hold ratio. Torque the valve body bolts down in a spiral from the center out to spec rather than around the perimeter, seat the harness connector until it clicks, and refill with genuine Nissan NS-2 or NS-3 CVT fluid to match the year. Most units also need a TCM reset and a fluid-degradation counter clear after the repair, or the adaptive strategy will keep commanding pressure for the old valve body.