Excessive shock when changing from engine drive mode to hybrid drive mode

Probable cause(s)

• Traction motor position sensor defective
• Traction motor position sensor line failure
• Transmission fluid temperature sensor defective
• Traction motor sensor harness failure
• Traction motor position sensor failed to install
• Generator motor position sensor defective
• Generator motor position sensor line failure
• Generator motor position sensor failed to install
• Low ATF level
• ATF pump worn or binding
• Main regulator valve stuck or spring worn
• Foreign material in separator plate orifice
• Cooler relief valve defective
• ATF strainer clogged
• Clutch defective
• Clearance between clutch end-plate and top disc incorrect

NOTE: 

• Check the ATF level. If the level is below the lower level, check the ATF cooler lines for leaks and loose connections. If necessary, clean the ATF cooler lines.
• Check the motor position sensor harness for poor connections, loose terminals, wear, and damage.
• Check the ATF pump drive gears for wear and damage.
• Inspect the motor shaft for wear and damage.
• Inspect the generator shaft for wear and damage.
• Inspect the input shaft for wear and damage.
• Replace the valve body assembly .
• Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it and clean the separator plate orifice.
• Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris.
• Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, replace the clutch.
• Replace the transmission (e-CVT) .