Circuit Description
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
The ESC module supplies 5 volts and a ground to the suspension control switch's voltage divider circuit. The suspension control switch changes the resistance value of the switch circuit which alters the voltage level received by the ESC module on the suspension control signal circuit. There are two possible voltage levels, and each voltage level corresponds to a switch selection position. The two switch positions are TOUR and SPORT. The ESC module monitors the voltage level on the suspension control switch signal circuit, and will set a DTC if the detected voltage level is not within the calibrated amount.