Pcm Code E024, Speed Sensor Circuit Problem: Action

WARNING: This page is about a different car, the 1992 Cadillac Seville and 1992 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

PCM turns on SERVICE ENGINE SOON light and disables Viscous Converter Clutch (VCC), cruise control and 3rd and 4th gears.

NOTE: Test number refers to number on diagnostic chart.

Vehicle speed sensor provides 0-36 volts AC signal to PCM, depending upon vehicle speed. With tires moving, signal to PCM should be at least .5 volt AC.