Operation CHARM: Car repair manuals for everyone.

Operation

The torque converter clutch is available in 2nd, direct, or overdrive gear;. The shift lever is conventional with six positions: P, R, N, OD, 3, and L available. When OD is selected the transaxle shifts through all four speeds with torque converter clutch available in overdrive. This position is recommended for most driving. The 3 position is tailored for use in hilly or mountainous driving. When 3 is selected, the transmission uses only 1st, 2nd, and direct gears with 2nd-direct shift delayed to 40 mph or greater. When operating in 3 or L positions torque converter clutch application occurs in direct gear. This improves transmission cooling under heavy loads. If high engine coolant temperature occurs, the torque converter clutch will also engage in 2nd gear. The L position provides maximum engine braking for descending steep grades. Unlike most current transaxles, upshifts are provided to 2nd or direct gear at peak engine speeds if the accelerator is depressed. This provides engine over-speed protection and maximum performance.