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Description

TRANSAXLE ADAPTS 4T80-E TRANSAXLE

The PCM maintains three types of transaxle adapt parameters which are used to modify transaxle line pressure under specific conditions. By modifying line pressure, the PCM maintains transaxle shift tolerance at a constant level, regardless of wear or variation of tolerance inside the transaxle. The three types of transaxle adapts are: garage shift adapt (controls Park to Drive or Reverse feel), upshift adapt (controls feel of 1/2, 2/3 and 3/4 upshifts) and steady state adapt (reduces slippage of clutches in all drive ranges).