Jun 2, 2016 · Code P0030 stands for Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1). This indicates the PCM has detected a problem with the bank 1 oxygen sensor. Bank 1 refers to the side of the engine that has the #1 cylinder.

Mar 18, 2025 · The P0030 code indicates a malfunction in the HO2S Heater Control Circuit for Bank 1 Sensor 1, affecting oxygen sensor operation and engine performance. Causes of the P0030 code include sensor failures, wiring issues, blown fuses, faulty ECMs, and environmental factors like extreme temperatures.

Feb 2, 2024 · A P0030 code is defined as an HO2S Heater Control Circuit (Bank 1 Sensor 1). This is a generic code, as opposed to a manufacturer-specific code, and it pertains to the heater circuit for the upstream oxygen sensor.

Mar 23, 2024 · What can cause the OBDII code P0030 to trigger in a Chevrolet, related to the HO2S Heater Control Circuit Bank 1 Sensor 1? - The most common causes are a malfunctioning oxygen sensor heater, damaged wiring or connectors, or a faulty engine control module (ECM).

May 29, 2024 · Diagnostic Trouble Code (DTC) P0030 stands for “HO2S Heater Control Circuit (Bank 1, Sensor 1).” It may be triggered when your vehicle’s control module detects a fault in the heater circuit in oxygen sensor Bank 1, Sensor 1. Bank 1 is where cylinder number 1 is located.

Feb 22, 2024 · If you have diagnosed your vehicle with a P0030 code, it means that there is an issue with the HO2S (Heated Oxygen Sensor) Heater Control Circuit. Here is a step-by-step repair guide that can help you troubleshoot and fix this problem.

Mar 23, 2024 · Possible causes of code P0030 include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM). How can I diagnose OBDII code P0030?

This article discusses what the P0030 engine error means, its symptoms, causes and how to have this engine error resolved. Fault code DTC P0030 refers to the malfunctioning of the engine’s oxygen sensor.

Oct 24, 2024 · What Does the Engine Code P0030 Mean? Code P0030 means “HO2S Heater Control Circuit (Bank 1, Sensor 1).” The powertrain control module (PCM) logs this error code in your car when it senses a fault in the engine’s main oxygen sensor (HO2S) heater circuit.

P0030 is a diagnostic trouble code (DTC) for "HO2S Heater Control Circuit (Bank 1 Sensor 1)". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.