Chart A2 - Main Valve: Notes
WARNING: This page is about a different car, the 1990 Oldsmobile Toronado, 1989 Oldsmobile Toronado, and 1988 Oldsmobile Toronado. However, it is still accessible from the selected car via links, so may be relevant.
Main valve is a solenoid valve, located inside hydraulic unit. Valve is activated by EBCM (pin No. 18) to provide modulated boost pressure to front hydraulic wheel brake circuits. Valve is grounded internally to hydraulic unit. Normal resistance is 2-5 ohms.