P1820 Buick
Internal Mode Switch Circuit ‘A’ Low
Buick
P1822 Buick
Internal Mode Switch Circuit ‘B’ Low
P1823 Buick
Internal Mode Switch Circuit ‘P’ Low
P1824 Buick
Internal Mode Switch ‘P’ Circuit High Voltage
P181D Buick
Internal Mode Switch 2 R1 Circuit High Voltage
P181E Buick
Internal Mode Switch 2 R2 Circuit Low Voltage
P181F Buick
Internal Mode Switch 2 R2 Circuit High Voltage
P181C Buick
Internal Mode Switch 2 R1 Circuit Low Voltage
P1817 Buick
Transmission Neutral Safety Switch Open Circuit
P1818 Buick
Transmission Fluid Pressure Valve Position Switch-Drive Without Drive Ratio