Engine Speed Does Not Return to Idle

15. Engine Speed Does Not Return To Idle (Light Braking D4 - D3)
SYMPTOM:
- Engine speed does not smoothly return to idle when A/T shifts from D4 to D3.
- Vehicle does not decelerate by engine brake when turning overdrive control switch OFF.
- Vehicle does not decelerate by engine brake when shifting A/T from D to 2 position.





1. Check Self-Diagnostic Results





2. Check Throttle Position Sensor





3. Check A/T Fluid Condition





4. Detect Malfunctioning Item





5. Check Symptom





6. Detect Malfunctioning Item