A/T Does Not Shift: D3->D4

11. A/T Does Not Shift: D3 -> D4
SYMPTOM:
- A/T does not shift from D3 to D4 at the specified speed.
- A/T must be warm before D3 to D4 shift will occur.





1. Check Symptom





2. Check Self-Diagnostic Results





3. Check Throttle Position Sensor





4. Check A/T Fluid Condition





5. Detect Malfunctioning Item

6. Check Symptom





7. Detect Malfunctioning Item