P043C - OBD Trouble Code

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Is the Check Engine Light illuminated on the instrument panel of your car? Does your car consume all its fuel quicker than before? If your answer is “YES” then there is a possibility that your vehicle is indicating a fault with the catalyst temperature sensor circuit being low. In order to have deeper knowledge of this error code, you will need to go through our following sections.

Your vehicle’ PCM will set the error code P043C when it detects an incorrect signal from the Catalytic Converter Temperature sensor. Since, there is not any true catalyst temperature sensor, we will refer to the oxygen sensor bank 2 here.

What causes this problem with the Catalyst Temperature Sensor Circuit Low?

• Bad oxygen sensors
• Problematic wirings
• Out of balance exhaust air & fuel mixture
• Defective PCM and its programming

1. Catalytic Converter - if you need catalytic converter to correct your obd error code P043C then you can simply browse through our PartsAvatar Canada website and get your hands on the best selection of parts available.
2. Temperature Sensor - Also, if you are looking for temperature sensor to get this issue fixed then we are here to serve you without best range of auto parts. Select your make/model specific temperature sensor and get this error fixed at the earliest.
3. Engine Control Module - ECM if damaged can be really problematic. So, we advise you to undergo ECM replacement as soon as possible, if found damaged. Worried about the cost? Well, you no longer need to worry about that as we have for you best priced ECM’S in stock.
4. PCM - P043C code might also damage the PCM of your vehicle. You can find powertrain control module with us.
5. Oxygen Sensor - if you are facing OBD error code P043C, chances are that your vehicle demands an oxygen sensor replacement. Don’t worry as you have arrived at the right place. We have in stock for you high end oxygen sensors from top brands like Denso, Bosch and many more.
6. Exhaust System Parts - Looking for exhaust components such as exhaust manifold, cat converters and more for your vehicle make? If yes, then you can easily find that with us.
7. Engine Parts - If you need any of the engine parts to fix this obd error code P043C, then all you need to do is to browse through our website to find your trophy parts.
8. Fuel Delivery System Parts - Looking for fuel delivery system parts to fix this error code? If yes, then we have you sorted. We have in stock high end fuel delivery system parts to fix all your vehicle problems.
9. Ignition Parts - We also have in stock top quality ignition parts if you need them to fix this OBD error P043C.
10. Cylinder Head Gasket - You might need Cylinder Head Gaskets to fix this error code. Where can you find them? Well, the answer is simple, At PartsAvatar 24x7.
11. VCT Solenoid Valve - Need VCT Solenoid Valve? Well, now is the time you get one for yourself with us at PartsAvatar and get your VCT solenoid valve at best prices online.
12. EGR Valve - Fixing egr valve might be helpful to correct this issue. With us you can also find a wide variety of EGR valves from top auto brands to fix this OBD Error code P043C.

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P043C code by mentioning some major symptoms below:

Common Symptoms

• Decline in fuel economy
• Flashing of check engine light
• Rise in emissions
• Fall in overall engine performance

Learn the ways with which you can correct this trouble code:

Correcting this error code requires you to replace all the damaged parts such as oxygen sensors, cat converters and more.

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of Catalytic Converter, Temperature Sensor, Engine Control Module, PCM, Oxygen Sensor, Wiring, Exhaust parts and many more. Now all your car problems would vanish within no time.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P043C code to be stored:

To start with inspect the downstream 02 sensor and all the related wirings for any issue or faults. Make sure there are no loose connections and damaged wirings. You will also need to check for the leaking exhausts as it can cause a false oxygen sensor code.

Next, you will need to check the technical service bulletin for this issue. After that proceed with diagnosing the system step by step as follows:

1. Other DTCs Test - The out of balance ratio of air and fuel mixture can cause the engine performance issue. You must begin your diagnosis with checking the presence of other DTCs store. We recommend you to fix them before commencing with the o2 sensor diagnosing.
2. Checking Oxygen Sensor Operations - In order to do so, you will need a scan tool or an oscilloscope. Connect the scan tool the diagnostic portal of your vehicle and switch it on. The sensor should have a steady 0.45 volt reading with only very small fluctuations. If it is not responding correctly it will likely need to be replaced.
3. Check the circuit - Check the oxygen sensor ground side of the circuit while turning the ignition key off and disconnecting the O2 sensor connector. In case it is set out of limit, then there might be an open circuit demanding a fix.

Common Mistakes When Diagnosing the P043C Code

In order to avoid any misdiagnosis, make sure to check for the following failure:

• Failing cat converter temperature sensor
• Failing PCM
• Issues with the wires