P046A OBD Error Code: Problem & Solutions

<<See All OBD Codes

Are you facing catalytic converter codes with your vehicle? Are there excessive exhaust emissions accompanied by increased fuel consumption? If your answer to all these questions is YES, then chances are your vehicle is set to OBD error code P046A. You must be wondering now what does this code indicates and how does this affect your engine performance. To get the answers to all your questions you will need to go through the following sections.

If you are wondering what this error code means, then you no longer need to worry over it. We at PartsAvatar are here to help you out with all your P046A error code related queries. The OBD Error code P046A is a generic error code and will be set by your vehicle’s PCM, when it detects that there are some faults with the signals from the catalytic converter temperature signals of engine bank one. Your vehicle’s powertrain control module monitors the signals from the catalyst temperature sensors and whenever it detects any variations out of the programmed amount, it will set OBD error code P046A.

What causes this problem with the Catalyst Temperature Sensor 1/2 Correlation (Bank 1)?

• Catalyst Temperature Sensor might be defective or damaged
• Open or shorted Catalyst Temperature Sensor harness
• Poor electrical connections
• Malfunctioning catalytic converter
• Problems with the vehicle’s DEF system
• PCM itself might be damaged

1. Catalyst Temperature Sensor - If OBD error code P046A is being flashed by your vehicle’s PCM, then chances are that your Catalyst Temperature Sensor is damaged. If that is the case, you will need to undergo its replacement.
2. Catalyst Temperature Sensor Harness - If OBD error code P046A is flashing, then chances are that not only your catalyst temperature sensor is damaged but also its related wirings and harnesses. So, what are you waiting for? Replace the bad ones today.
3. Oxygen Sensor - We have in stock high end oxygen sensors for all makes and models. So, don’t waste time and get your hand on our best range of auto parts today only with us.
4. Diesel Exhaust Fluid System - Need to undergo Diesel exhaust fluid system replacement? Worried about the cost? Well, you no longer need to worry about that as we have for you best priced ones in stock for you.
5. Catalytic Converter - A damaged cat converter can become a potential cause for many issues related to OBD error code P046A. So why not check and replace the damaged ones?
6. Powertrain Control Module - Looking for powertrain control modules for your vehicle? If Yes, then you are at the right place, we have in stock high end PCM for every make and model. So, what are you waiting for? Get for yourself today.
7. Diagnostic Scanner - You can choose from a selection of diagnostic scanner on our website and make it easy on yourself when diagnosing problems and creating accurate solutions for your car.
8. Infrared Thermometer - If you need one, you can simply find it with us. You can choose from a selection of diagnostic tools on our website and make it easy on yourself when diagnosing problems and creating accurate solutions for your car.
9. Multimeter - Well, in order to detect and diagnose all the obd error code, you might need mustimeters and if you do so, then you can shop them with us at PartsAvatar.

We at Parts Avatar Canada care for our customers, and that’s why we will help you to diagnose P046A code by listing out some major symptoms. They are mentioned below as follows:

Common Symptoms

• Excessive exhaust emissions
• Appearance of cat converter codes
• Appearance of DEF system codes
• Fall in fuel efficiency
• Illumination of check engine light

In order to correct this OBD Code P046A you will need to undergo the following steps and might need the following parts.

• You will need to repair the broken or shorted catalyst temperature sensors wirings and harnesses
• Repair the faulty cat converters and related damaged parts

If you continue to face these problems and need parts to fix it you can find them with us. We have stocked a wide range of best priced ECM, PCM, catalyst temperature sensor and alot more to help you out in fixing your car.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P046A code to be stored:

• If you really wish to diagnose this error code P046A, you will need few tools such as diagnostic scanner, digital volt/ohmmeter also known as DVOM and infrared thermometer.
• Once you get all these tools ready just make sure that you have installed the right fluids in the DEF system and it is working well. Check for DEF related codes and if you come across any, then make sure you actually get rid of them before you attempt to fix error code P046A.
• Also, make sure that you inspect the exhaust cat converters and all the wires and harnesses that are mounted near the exhaust pipes and manifolds.
• Now, connect the scanner to the diagnostic port of your vehicle and restore all the related codes and freeze the codes. Next, clear all the codes and check if P046A reappears.
• In case the code resets itself, then check for the temperature variations and compare them with the desired data. If there exists a difference between the two sensors and is not working within specifications, use the infrared thermometer to get a physical temperature. Compare your findings with those seen on the scanner data display and test exhaust temperature sensors which do not align.
• Lastly, make use of the DVOM to test the individual sensors as per the manufacturer’s recommendations. Now change all the sensors which do not fit the specifications. Also test individual circuits in case all the sensors are perfect. Fix the circuits which do not fit into the manufacturer’s specifications.