Circuit Description

WARNING: This page is about a different car, the 2000 Chevrolet Corvette and 1999 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Right Door Control Module (RDCM) provides illuminated output control for right door switch assembly. RDCM provides a single power supply for illuminated light functions. The RDCM uses Pulse-Width Modulation (PWM) ground output to control dimming level to right door switch. When RDCM receives a message on the serial data line indicating park lights or headlights are ON, RDCM will control right switch illumination by providing PWM on the ground circuit.

The RDCM monitors amount of current draw on illumination light control circuits. DTC will set when the RDCM detects short to ground in right door switch Illumination circuit. Condition must be present for 20 milliseconds.

When DTC sets, DTC B2279 is stored as history. RDCM will disable malfunctioning indicator. This DTC can only be set as history even if malfunction is current. No driver warning message will be displayed.

DTC will clear when RDCM no longer detects a short to ground in indicator/light control circuit. Driver's Information Center (DIC) or scan tool can be used to manually clear DTC.