CHEVY HEATER WIRING DIAGRAM

P0030: HO2S Heater Control Circuit (Bank 1, Sensor 1)
Aug 11, 2021Code P0030 may be set by your PCM if there’s a fault in the heater circuit in oxygen sensor Bank 1, Sensor 1. Bank 1 is the passenger side bank, but on Chevy and Dodge pickups, Bank 1 is the driver side bank. Make sure you know bank 1 from bank 2 before you start trying to fix the issue. Exhaust System Diagram; OBD-II Trouble Codes