Upshift Procedure

With gear selector in drive (D)

1. Look at the shift speed chart contained in this section and choose a percent throttle angle of 10 or 25%.
2. Set up the scan tool to monitor throttle angle and vehicle speed.
3. Accelerate to the chosen throttle angle and hold the throttle steady.
4. As the transaxle upshifts, note the shift speed and commanded gear changes for:
   • 2nd gear.
   • 3rd gear.
   • 4th gear.
     CAUTION: Shift speeds may vary due to slight hydraulic delays responding to electronic controls. A change from the original equipment tire size affects shift speeds.

     Note when TCC applies. This should occur in fourth gear. If the apply is not noticed by an RPM drop, refer to the "Torque Converter Lock-Up Clutch (TCC) Diagnosis " information contained in this article.

     The Lock-up clutch should not apply unless the transaxle has reached a minimum operating temperature of 8 °C (46 °F) Trans Temp and engine coolant temp of 50 °C (122 °F).

5. Repeat steps  1 -  4 using several different throttle angles.