Shift Point Road Test

Shift Point Road Test
This test verifies that the shift control system is operating correctly.
1. Bring engine and transmission up to normal operating temperature.
2. Operate vehicle with transmission range selector lever in D position.
3. Apply minimum throttle and observe speeds at which upshift occurs and the torque converter engages.
4. With the transmission in D, move the range selector lever into the manual 3 position. The transmission should downshift to 4th gear.
Release the accelerator pedal; engine braking should occur.
5. Press the accelerator pedal to floor, wide open throttle (WOT). Transmission should shift from 4th to 3rd, depending on vehicle speed. The torque converter clutch (TCC) should disengage and then reapply.
6. With the transmission in D position and speed above 80 km/h (50 mph) and less than half throttle, move the transmission range selector lever from D position to manual 2 position and remove pressure from the accelerator pedal. The transmission should downshift into 2nd gear. With the vehicle remaining in manual 2 position, move the transmission range selector lever into manual position and release the accelerator pedal. The transmission should downshift into 1st gear at speeds below approximately 45 - 56 km/h (28 - 35 mph).
7. If the transmission fails to upshift/downshift or the TCC does not apply and release, refer to Diagnosis By Symptom. 6R60 Automatic Transaxle/Transmission

Shift Speeds:

Shift Speeds

NOTE: Shift speed ranges are approximate for all applications- For specific applications (engine, axle ratio, tire size and application), refer to the Automatic Transmission Specification booklet. Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws

Road Test - Adaptive Drive Cycle

NOTE: Using the diagnostic tool, clear the adaptive table before conducting an adaptive drive cycle test.

NOTE: All adaptive drive cycle tests are carried out with the transmission fluid temperature at normal operating temperature 8O°C - 82°C (175°F - 180°F).

NOTE: All adaptive drive cycle test are carried out with the range selector lever in the D position.

This test will begin the adaptive learning schedule to provide a better shift quality and shift feel.

Clutch C stroke adaptive test
1. Accelerate at light throttle (accelerator pedal position APP - A is 8-15 percent) from a stop to 24 km/h (15 mph). This will allow the transmission to shift into 2nd gear.
2. Once the transmission has shifted into 2nd gear, brake to a stop.
3. Repeat Steps 1 and 2 for a total of 5 times.

Clutch C boost adaptive test: This is a steady state drive test.
1. Accelerate at a moderate throttle position from a stop to 60 km/h (35 mph). This, will allow the transmission to shift into 5th gear.
2. Once the transmission has shifted into 5th gear, maintain a vehicle speed between 56 - 61 km/h (35 - 38 mph) for approximately 10 km/h (6 miles) or 10 minutes. If the vehicle speed has been exceeded and it shifted into 6th gear, slow the vehicle down to 60 km/h (37 mph) and carry out a quick tip in to return to 5th gear and continue with this test until the mileage or time requirements have been meet.

Clutch D stroke adaptive test
1. Accelerate at a moderate throttle position from a stop to 88 km/h (55 mph). This will allow the transmission to shift into 6th gear.
2. Once the transmission has shifted into 6th gear, brake to a stop and remain stopped for a minimum of 7 seconds.
3. Repeat Steps 1 and 2 for a total of 5 times.