P0030
From Ross-Tech Wiki
16414/P0030/000048 - Oxygen (Lambda) Sensor Heating Circuit: B1 S1: Malfunction / Open Circuit
Possible Symptoms
- Malfunction Indicator Light (MIL) ON
Possible Causes
- Faulty O2 sensor heater circuit
- Wiring/Connector issue
- Faulty ECM
Possible Solutions
- Inspect and test O2 sensor heater circuit as per repair manual
- Inspect and test wiring harness as per wiring diagram
- Replace ECM if O2 sensor and wiring harness are to factory design