P0032 - OBD Trouble Code

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Is your vehicle set to failsafe mode? Is your check engine light on? Or are you facing low power issues? If YES, then chances are your vehicle is set to OBD Error code P0032.

Now, the question that comes to all of our minds is what is this error code P0032? What does it signify?

Well to know all this you will need to go through this article in detail. We are sure, by the end of this article you will be in a position to understand and help your vehicle in the possible manner. 

P0032 error code is related to your vehicle’s HO2S i.e. Heater Control Circuit in front of the catalytic converter. ECM (engine control module) closed loop system receives data from the HO2S after it is heated. If the heater circuit is above 10A, then it is clear that it is out of the desired range.

If OBD error code P0032 is set by your vehicle then it means that HO2S sensor bank 1, sensor 1 is not sending correct data to the Engine Control Module. Chances are it might be defective or damages. Possibility of ECM being damaged is quite low.

What causes this problem with the HO2S Heater Control Circuit?

• Short in the sensor within the heater circuit.
• 02 sensor Heater wiring and connector failure or damage.
• Issues with powertrain control module or engine control module

1. Oxygen Sensor - If you are looking for oxygen sensors to fix your problem, then we have good news for you. We have in stock oxygen sensor for all make and models and that too at best prices.
2. Engine Control Module - chances of your ECM going wrong is quite low for this issue, but if you still face problems with it you can find quality ECM’s with us.
3. Exhaust Parts - since OBD error code P0032 might be caused by few damaged exhaust parts, you might need brand new ones to fix the issue.
4. Engine Wiring & Connector - Well, if you really wish to get rid of this problem you might need to undergo engine wiring and harness replacements. You can easily find them with us.
5. Powertrain Control Module - Looking for Powertrain Control Module, commonly known as PCM? If yes, then have a look at our collection.
6. Diagnostic Tools - if you are in need of few diagnostic tools to become that DIY guy, then you can simply browse through website and get your hands on the best diagnostic tools.

In order to detect any problem, it is really essential to have some knowledge about it common symptoms. We at PartsAvatar have listed out few common symptoms related to the OBD error code P0032.

Common Symptoms

• Check engine light flashing is one of the common symptoms for many issues with your car, and obd error code P0032 is no exception.
• Another common symptom can be your vehicle entering the failsafe mode.
• Once your vehicle enters the failsafe mode, then various drivability issues can be detected.
• This failsafe mode will continue until the ignition will be turned off.
• Hesitation and low power can become another potential symptom to detect this issue.

Once you know the symptoms of your vehicles problem, it becomes easy to detect it and get started with solving it. So, next on our list is few common steps to correct this issue with your vehicle’s HO2S heater control circuit high (B1 S2)

First and foremost, step is to get your vehicle scanned with this code from a certified technician. Next you will need to get all the fault codes removed and then conduct a road test. If the P0032 error code returns, then you need to look for damaged wirings. As the wiring getting damaged due to excessive exhaust heat is quite common.

Thirdly, get your damaged sensor replaced. Also make sure that the wirings are in good working condition and with proper voltage and ground to the sensor. Fourthly, you will have to use a voltmeter while your engine is off and key is on and check for 12+ volts to the heater element. In case the voltage is absent, undergo circuit and blown fuses repair.

After that if you see that the batter feed is perfect and intact, remove the circuit from the ECM wiring connectors and check for the resistance on the circuit. In case there is infinite resistance, you will need to repair open in the circuit. Last but not the least replace the sensor and re-check for code.

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You will need OBD-II scanner to diagnose this OBD error code you will need an OBD-II scanner. You will need to reset the OBD-II code and conduct a road test. If the code returns, you will need to check the power and the ground to the sensor. Also, you will need to inspect the wiring and sensor for any damage.

Common Mistakes When Diagnosing The P0032 Code

There are chances that you commit the mistake of replacing the HO2S sensor before checking the related wiring and connector. Chances are that they are damaged and not the sensor itself. Also, check the wirings and connectors on both sides to make sure where the problem lies.

P0031 - HO2S Heater Control Circuit Low (Bank 1 Sensor 1)

P0051 - HO2S Heater Control Circuit Low (Bank 2 Sensor 1)

P0052 - HO2S Heater Control Circuit High (Bank 2 Sensor 1)