P1153 GMC HO2S Insufficient Switching Bank 2 Sensor 1

Possible causes – Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1– Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 harness is open or shorted– Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 circuit poor electrical connection When is the obd code mean? A DTC P1153 sets when the Powertrain Control Module (PCM) determines that…