Vehicle does not move in R position/mode

Probable cause(s)

• Transmission range switch defective or out of adjustment
• Shift cable broken or out of adjustment
• Control pin broken
• Reverse brake defective
• Reverse brake piston defective
• Planetary carrier assembly worn or damaged
• Sun gear worn or damaged
• Ring gear worn or damaged
• Thrust needle bearing or thrust washer on planetary carrier assembly seized, worn, or damaged
• Manual valve worn or damaged
• Valve body assembly defective
• Stator shaft worn or damaged

Notes 

• Inspect the transmission range switch .
• Check for a loose shift cable at the shift lever and the control lever .
• Inspect the reverse brake piston and the O-rings. Check the spring retainer/return spring assembly for wear and damage. Inspect the clearance between the reverse brake end-plate and the top disc . If the clearance is out of tolerance, inspect the reverse brake discs and reverse brake plates for wear and damage. If the discs and plates are worn or damaged, replace them as a set. If they are OK, adjust the clearance with the reverse brake end-plate.
• Check the planetary carrier assembly for wear and damage. If the planetary carrier assembly is worn or damaged, replace it and also check the planetary carrier pinion gears, the reverse brake, and the drive pulley shaft splines for wear and damage.
• Check the sun gear for wear and damage. If the sun gear is worn or damaged, replace it and also check the planetary carrier pinion gears, the forward clutch, and the drive pulley shaft splines for wear and damage.
• Check the ring gear for wear and damage. If the ring gear is worn or damaged, replace it and also check the planetary carrier assembly and the reverse brake for wear and damage.
• Check the thrust needle bearing and the thrust washer on the planetary carrier assembly for seize, wear, and damage. If the thrust needle bearing or the thrust washer are seized, worn, or damaged, replace them and adjust the clearance with the thrust shim.
• Check the manual valve for wear and damage.
• Check the valve body assembly for wear and damage.
• Check the stator shaft for wear and damage.