P0155 Code Meaning, Causes, Symptoms & Tech Notes
What causes a P0155 code? Possible causes include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).
P0155 O2 Sensor Heater Circuit Malfunction (B2S1)
Description of vehicle trouble code P0155 - Oxygen O2 Sensor Heater Circuit Malfunction (Bank2, Sensor1)
P0155 Code: Oxygen Sensor Heater Circuit Malfunction (Bank 2, …
Jun 3, 2024 · Triggered the P0155 code? Concerned about what needs fixing in your car? Learn about this code's meaning, possible causes, common symptoms, and solutions.
P0155 Code Causes & Fixes - O2 Sensor Heater Circuit - Bank 2 Sensor 1
Jan 22, 2024 · If you use an OBD-II scanner or have a professional technician look over your engine and it's displaying a P0155 code, you’re in the right place. We’ll take you through what a P0155 code is, …
P0155 Code? Here’s How to Fix It – Quickly and Easily
5 days ago · When you’re dealing with a P0155 code, it’s likely that the Bank 2 Sensor 1 has failed and needs replacement. Sensor replacement is a key step in resolving Bank issues, as a faulty O2 …
P0155 Code Symptoms, Causes, Diagnosis & Repair Steps Complete …
With a P0155 code, the vehicle’s computer has detected a fault in the heater circuit for the Bank 2, Sensor 1 oxygen sensor. Because the sensor’s heater cannot reach operating temperature, the …
P0155 – Meaning, Causes, Symptoms, & Fixes - FIXD
Mar 29, 2022 · Check engine light code P0155 means O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1). Find out how to fix it in this article!
P0155 Code: Meaning, Symptoms, Causes & Fixing - Mechanical Boost
When your PCM detects a fault in the heater circuit of the O2 sensor, it triggers the P0155 code. This article mainly explains the P0155 code symptoms, its causes, and how to fix it.
Understanding P0155 OBD-II Code: Oxygen Sensor Heater Issues
What Does Code P0155 Mean? Code P0155 is triggered when the Oxygen Sensor signal that is sent to the Powertrain Control Module remains at or near the .10 voltage point.
P0155 code meaning and Cost of its fix - Car Fix Book
Nov 27, 2025 · The most common causes of P0155 include a faulty oxygen sensor heater element, issues with the sensor’s wiring or connectors, or a blown fuse related to the sensor’s heater circuit.