Buick - OBD Code Lookup

P18BA Buick

Internal Mode Switch ‘A’ Circuit Stuck Off Invalid Voltage Range

Internal Mode Switch ‘B’ Circuit Stuck Off Invalid Voltage Range

Internal Mode Switch ‘C’ Circuit Stuck Off Invalid Voltage Range

Internal Mode Switch ‘A’ Circuit Shorted

Internal Mode Switch ‘B’ Circuit Shorted

Internal Mode Switch ‘C’ Circuit Shorted

Internal Mode Switch ‘P’ Circuit Shorted

Throttle Position Sensor PWM Signal High

Engine Torque Signal Low Voltage

Engine Torque Signal High Voltage