P0155 OBD Error Code: Problem & Solutions

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Have you recently started facing some issues with your oxygen sensor bank 2 sensor 1? Your fuse to the circuit for the oxygen sensor has blown out? Then you must get your car inspected because P0155 trouble code is soon going to appear.

If the P0155 fault code has triggered, then it would indicate that the heater element of the oxygen sensor is taking a lot of time than the normal to heat up. The P0155 trouble code would be stored in by the powertrain control module and the check engine light would start illuminating to alert the vehicle’s operator to the problem.

What causes this problem with the 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)?

• There can be some issues with the oxygen sensor bank 2 sensor 1
• Issue of a broken or a bare wire which might be leading to the oxygen sensor
• The fuse to the circuit for the oxygen sensor might blow out
• Issues in the powertrain control module and engine coolant temperature sensor

1. Powertrain Control Module - Common cause behind this P0155 error code can be some fault in Powertrain Control Module. So, it will be a good decision to replace them now.
2. Exhaust Parts - PCM is perfectly fine but still but having that trouble code P0155 flashing? In such a situation your Exhaust Parts might be faulty. Why don’t you think of getting that replaced?
3. Engine Light - The P0155 code can also arise due to some issues of Engine Light on car. So, it is advised to replace them as soon as possible.
4. Coolant Temperature Sensor - P0155 code does not really end up spoiling your exhaust parts, but it might also accompany few Coolant Temperature Sensor issues. We have best powertrain related parts with us.
5. Exhaust System - Defective car Exhaust System can be a major reason why P0155 code depicts. So, make sure to replace it online so that you don’t have to face any further issues.

It is very important to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0155 here:

Common Symptoms

• The check engine light can start illuminating
• Your car can start running roughly
• You may face a situation where your vehicle can start consuming more fuel than usual
• The vehicle can shut of occasionally
• A rotten egg smell can start coming from the exhaust
• You might see black smoke coming out of the exhaust

It is very important to fix the fault code P0155. So here are some ways with which you can correct this issue:

• The first thing which you should do is to fix all the broken or bare wires
• The coolant temperature sensor should be replaced
• Make sure that you replace the oxygen sensor
• The powertrain control module should be replaced

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of oxygen sensor connector, powertrain control module, Honda engine light and a lot more. We are sure that now all your issues would be resolved.

There are a lot of cases where the presence of this code would indicate that the oxygen sensor should be replaced. Before you start doing, you must follow these steps mentioned below:

• If you want to collect the trouble codes which have been stored by the powertrain control module, then you must use an OBD-II scanner
• The wiring that would lead to the oxygen sensor should be visually inspected for breaks in the wires or bare wires
• You must use an OBD-II scanner to view the live data in order to make sure that the oxygen sensor is in good working condition
• If you find out that the coolant temperature sensor is not functioning properly, then this code would be stored in by the powertrain control module as well, so make sure that you inspect it and test it properly
• The cases are rare that the powertrain control module can be faulty and that’s why there would be a requirement of advanced diagnosis to make a determination as to whether this is a problem. It should be considered last, and after every possible attempt at repair has failed.

Common Mistakes When Diagnosing The P0155 Code

• The oxygen sensor should only be replaced after carefully inspecting the other components
• Most of the people do not inspect the wires which are leading to the oxygen sensor for brakes or bare wires before the oxygen sensor is replaced

P0153 - O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)

P0154 - O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)

P0156 - O2 Sensor Circuit Malfunction (Bank 2 Sensor 2)