P1DAD – Input Shaft-Output Shaft Direction Correlation

P1DAD Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light)

P1DAD Possible Causes

Faulty internal transmission components

P1DAD Description

The purpose of the diagnostic is to detect an unwanted driving direction. A rationality check is performed between the measured directions of input speed and output speed signal and the calculated driving direction. The calculated driving direction is based on the commanded currents of the pressure regulators.