The P2243 fault code in automobiles indicates a problem with the front oxygen sensor bank 1. The most common symptom is the illumination of the engine light or service engine soon warning light. The cause of this fault code could be a faulty front oxygen sensor bank 1, an open or shorted harness, or a poor electrical connection in the circuit.

A stored code P2243 means that the powertrain control module (PCM) has detected an open reference voltage circuit for the upstream O2 sensor for engine bank one. Sensor 1 refers to an upstream sensor and Bank 1 refers to the bank of the engine which contains the …

The diagnostic trouble code P2243 indicates a problem with the O2 sensor reference voltage circuit on Bank 1 Sensor 1 in the vehicle's exhaust system. The O2 sensor, also known as the oxygen sensor, is a crucial component that measures the amount of oxygen in the exhaust gases.

2022年9月1日 · Diagnostic trouble code (DTC) P2243 stands for “O2 Sensor Reference Voltage Circuit/Open.” If the powertrain control module (PCM) detects an issue with an oxygen (O2) sensor, it might log a code P2243. The P2243 code is commonly caused by exhaust leaks, failed O2 sensors, wiring issues, and a bad PCM.

2024年9月27日 · The P2243: O2 Sensor Reference Voltage Circuit/Open Bank 1 Sensor 1 code indicates that the reference voltage circuit for the O2 sensor on Bank 1 Sensor 1 has an open circuit or disconnection. This means that the oxygen sensor is unable to receive the reference voltage required for proper operation, leading to incorrect readings.

If you’re reading this, chances are you’ve seen the OBD-II code P2243 appear on your check engine light scanner. But what does it mean, and how do you fix it? As a professional mechanic, I’m here to explain what the code means and provide a step-by-step guide on how to repair it.

2020年6月14日 · Repair Information for P2243 code. Learn what O2 Sensor Reference Voltage Circuit Open Bank 1 Sensor 1 means, location and how to repair?

Code P2243 is caused most commonly from an internal failure of the reference voltage circuit inside the O2 sensor. The O2 sensor wiring cover is also a vent on some O2 sensors and if the cover is cut or removed then the sensor can get water into the back side of the sensor and cause it to short out the circuit and blow the O2 sensor reference ...

Typically, this diagnostic trouble code occurs because there’s a problem with the O2 sensor or the wiring. This may include issues with poor electrical circuit connection, malfunctioning or...

What does OBD-II fault code P2243 mean? OBD-II Code Decreased engine performance is defined as a O2 Sensor Reference Voltage Circuit/Open. The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the …