Transmission does not change to higher or lower ratio
Probable cause(s)
Drive pulley, driven pulley, pulley shaft, pulley belt, and pulley related parts worn or damaged
Transmission fluid feed pipe worn, damaged, or out of round
Transmission fluid pump worn, binding, or foreign material in transmission fluid pump
Low transmission fluid (HCF-2) level
Transmission fluid strainer or transmission fluid filter clogged
Valve body assembly defective
Stator shaft worn or damaged
Solenoid wire harness worn or damaged
PCM defective
Notes
Check the drive pulley, the driven pulley, the pulley shafts, the steel belt, and pulley related parts for wear and damage. If there are worn or damaged, replace the transmission housing assembly.
Check the transmission fluid feed pipe for wear, damage, and out of round.
Check the transmission fluid pump assembly for wear and damage. If the transmission fluid pump assembly is worn or damaged, replace it as an assembly.
Check the transmission fluid (HCF-2) level.
Check the transmission fluid strainer and the transmission fluid filter for debris. If the transmission fluid strainer or the transmission fluid filter is clogged, find the damaged components that caused debris.
Check the valve body assembly for wear and damage.
Check the stator shaft for wear and damage.
Inspect the solenoid wire harness for open and short.