Pinpoint Test D : Engagement Quality - Forward

• Delayed/soft forward 
  • Check the transmission fluid level. REFER to: Transmission Fluid Level Check  .
  • Carry out the transmission strategy download and the adaptive learning drive cycle. REFER to: Transmission Strategy Download  . REFER to: Adaptive Learning Drive Cycle  .
  • Carry out the line pressure test. If line pressure is low, refer to the Line Pressure Diagnosis Chart for further diagnosis. REFER to: Special Testing Procedures  .
  • Check the A clutch for a slipping apply condition. REFER to: A Clutch  .
  • Check the electronic SOWC for slipping. REFER to: Electronic Selectable One-Way Clutch Assembly  .

• Harsh forward 
  • Carry out the transmission strategy download and the adaptive learning drive cycle. REFER to: Transmission Strategy Download  . REFER to: Adaptive Learning Drive Cycle  .
  • Check the A clutch for a harsh apply condition. REFER to: A Clutch  .
  • Check the electronic SOWC for damage. REFER to: Electronic Selectable One-Way Clutch Assembly  .

• Neutral after launch 
  • Check the electronic SOWC for slipping. REFER to: Electronic Selectable One-Way Clutch Assembly  .

• Slip on hard acceleration in 1st 
  • Check the electronic SOWC for slipping. REFER to: Electronic Selectable One-Way Clutch Assembly  .

• Harsh/soft/delayed engagement after start/stop restart 
  • Check the operation of the transmission fluid auxiliary pump. If any diagnostic trouble codes are present, resolve those first. REFER to: Transmission Fluid Auxiliary Pump .

Possible Sources 

• Corrupted transmission strategy
• Low transmission fluid level
• Low or high line pressure
• Clutch fault
• Transmission fluid auxiliary pump fault