A stored code P2240 means that the powertrain control module (PCM) has detected a positive current discrepancy in the upstream oxygen (O2) sensor for engine bank number two. Bank two is the engine bank that doesn't contain the number one cylinder.

Jun 14, 2020 · It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM).

Oct 16, 2022 · The P2240 code stands for “O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1.” Some possible causes include a faulty O2 sensor, exhaust leaks, and wiring issues. A few symptoms to look out for are an illuminated check engine light, excessive fuel consumption, and decreased engine performance.

Gain a thorough understanding of O2 sensor circuit problems to resolve the P2240 code effectively and optimize your engine’s performance. P2240 indicates a positive current discrepancy in the upstream O2 sensor for bank two. Symptoms include reduced fuel efficiency, power loss, rough idling, and warning lights.

The P2240 fault code in automobiles indicates a problem with the Front Heated Oxygen Sensor Bank 2. The most common symptom is the illumination of the Engine Light or Service Engine Soon Warning Light.

This code specifically refers to the downstream sensor, not the upstream O2 sensor. When you see fault code P2240, it means that your vehicle has identified a voltage issue with the positive

Jan 17, 2018 · OBD II fault code P2240 is a generic code that is defined as “Heated oxygen sensor (H0 2) #1, bank 2, positive current control – open circuit / – no signal”, and is set when the PCM (Powertrain Control Module) detects an open circuit in, or lack of a signal through the control circuit of the heater element in the #1 (upstream of the ...

May 1, 2024 · The P2240 trouble code technically means "Oxygen (O2) Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1". Here's exactly what you need to do to fix it.

P2240 is an OBD-II generic code for the engine control module (ECM) detecting the air-fuel (A/F) ratio sensor signal is shorted or between the A/F positive and negative terminals of the sensor. What causes the P2240 code?

P2240 Mercedes-Benz Oxygen (O2) Sensor Positive Current Control Circuit / Open (Bank 2 – Sensor 1) What about the obd code? If the IPB 2 terminal voltage is out of a specified range, the PCM detects a malfunction and stores a DTC.