Output State Control (OSC) - Transmission Drive Mode
OSC provides the following Drive Mode functions:
- GEAR - allows upshifts and downshifts.
- TCC - engages or disengages the torque converter clutch (TCC).
- FIRM SHIFT - commands a higher control pressure during upshifts.
When using Drive Mode, the recommended procedure is to use one selection at a time. The pressure control (PC A) solenoids for this transaxle are not directly controlled during Drive Mode testing. Pressures may be raised during an upshift via the FIRM SHIFT selection.