Road Testing Vehicle: Notes
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Shift Point Road Test
NOTE:
Always drive the vehicle in a safe manner according to driving conditions and obey all traffic laws.
Most performance based automatic transmission DTCs require the fault to be detected multiple times before setting a DTC. In many instances the faults musts be detected consecutively a predetermined number of times (up to five). Performing the shift point road test as detailed below increases the likelihood that a DTC sets if a fault is present in the system.
- Bring engine and transmission up to normal operating temperature.
- Operate the vehicle with the selector lever in the D position.
- Apply minimum throttle and observe speeds when an upshift occurs. Refer to the Shift Speed .
- With the selector lever in the D position and speed above 80 km/h (50 mph) and less than half throttle, move the selector lever from the D position to manual 2 position and release the accelerator pedal. The transmission should downshift into 2nd gear. With the transmission remaining in the manual 2 position, move the selector lever into the manual 1 position and release the accelerator pedal. The transmission should downshift into 1st gear at speeds below approximately 45-56 km/h (28-35 mph).
- If the transmission fails to upshift/downshift, REFER to: Diagnosis By Symptom .