Clean the solenoid mounting area before removal. Torque each solenoid bolt to 9 ft.-lb.
Photo courtesy of Mitchell 1
Location of rear differential solenoid valves.
This bulletin applies to 2019-2020 Acura RDX vehicles equipped with AWD. The AWD indicator may illuminate with DTC C1843-62 (left rear differential fluid pressure deviation) and/or C1844-62 (right rear differential fluid pressure deviation).
The probable cause: internal corrosion in the solenoids. Check the rear differential fluid level. If level is OK, replace both rear differential solenoid valves. The left rear solenoid is P/N 48360-5YP-013. The right rear solenoid is P/N 48350-5YP-013. The 20mm filler plug washer is P/N 94109-20000. Torque the filler plug to 26 ft-lb. If fluid level is low, fill with Acura All-Wheel Drive Fluid (DPSF) to the proper level.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
