Pinpoint Test C: No Engagement - Both Forward And Reverse

• No forward and no reverse 
  • Check the transmission fluid level. REFER to: Transmission Fluid Level Check .
  • Collect a transmission fluid sample and inspect it for signs of contamination or wear. REFER to: Preliminary Inspection .
  • 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 .
  • Inspect the turbine shaft splines on the transmission input shaft and in the torque converter turbine. INSTALL new components as necessary. REFER to: Transmission .
  • Inspect the internal transmission components for damage. INSTALL new components as necessary. REFER to: Transmission .

Possible Sources 

• Low transmission fluid level
• Low line pressure
• Clutch fault
• Damaged turbine shaft splines
• Internal transmission components

Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods