Transmission Mode Switch: Description and Operation

TRANSMISSION RANGE PROGRAM SWITCH -E122

NOTE: Not used on vehicles with electronic program switch in Transmission Control Module (TCM).

Eco/Sport Switch:

Rotary Type Switch:

- The Transmission Range (TR) Program Switch may be either push-button or rotary switch, (not interchangeable).
- Each time the button is pressed the system switches between Sport and Eco program. When the engine has been started again the last program selected is switched on and is indicated by the sport light.
- An Economy/Sport switch is not used with the new phase I 096 4-speed automatic transmission. The transmission control module now selects the shift program automatically, adapting to different driving styles.
- Two shift programs, Economy and Sport, are stored in the transmission control module memory. The TCM will automatically select one of the two based on the opening and closing speed of the throttle.
- When accelerating quickly, the TCM selects the Sport program. The TCM will automatically switch back to the Economy program after the throttle is held below the full load range for a predetermined amount of time.