Circuit Description

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The driver door module (DDM) and passenger door module (PDM) provide the window motor control output functions. These output controls allow the DDM and PDM to command the power windows UP or DOWN. The driver and passenger door switch circuits provide inputs to the DDM or PDM when a window switch is activated UP or DOWN. When the DDM or PDM detects an active up or down input from a window switch, the DDM or PDM will command the window motor in the appropriate direction. Each door module accomplishes this by applying voltage to the window motor control circuit depending on the desired window direction. Each door module monitors the amount of current draw on the window motor circuit. If the DDM or PDM detects a short to voltage condition in a window motor control circuit greater than 45 amperes for longer than 1 second, a DTC is set.