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P0030 Diagnostic Trouble Code Discussion for October 2019

Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0030
Help Request Posted
2016 Subaru WRX 2.0L MIL Lamp on VIN: JF1VA1B68G
P0030: O2 heater control circuit bank 1 sensor. Car throws a P0030 code for the O2 sensor heater that comes back 100 miles or so after being erased. This is the front 5 wire sensor. Disconnected the connector and tested for 12V to the heater on the harness side after turning the ignition on and it's goo...
October 29, 2019