What is the P0062 fault number? What is the malfunction description for the HO2S Heating Control Circuit (Bank 2 Sensor 3)? How can you fix the P0062 fault? What are the causes and symptoms of the P0062 error code?
What is the P0062 fault code? What does it signify?
Fault code P0062 means that the heater circuit used for heating the oxygen sensor has failed. “Bank 2” refers to the engine bank that doesn’t contain the engine’s #1 Cylinder. “Sensor 3”, which refers to the oxygen sensor closest to the engine, after a catalytic converter, is called the Sensor 3. If the powertrain control module, PCM detects an issue with the oxygen sensor heater control circuit, a code P0062 will be generated.
To determine the oxygen content of the exhaust system, fuel-injected vehicles use oxygen sensors prior and after the catalytic convertors. These sensors provide data that the PCM uses to maintain the correct fuel/air ratio (14.7:1) calculate fuel delivery timings and monitor emission levels.
Once the oxygen sensors reach a temperature of approximately 600 degrees Fahrenheit (315°C), they begin to send sensitive and accurate information. It takes about 15 minutes for exhaust pipes to reach this temperature after starting a cold engine. The oxygen sensors require to be heated up faster so the engine can enter the closed circuit more quickly. A heating element has been added to the oxygen sensor. The heater oxygen sensor (HO2S) is standard equipment in modern cars.
Most heated oxygen sensors consist of three or four wires. Two wires supply the PCM with an aggregate circuit as well as a 0.5-volt reference voltage signal. Two wires are used to supply the heater component with ground and power. The PCM routes the battery voltage through it, sometimes with the aid of relays and/or fuse. The circuit is energized when the ignition switch is switched on in cold start conditions. To make the heating element work, a voltage average of 12.0-13.5 Vs and a ground connection is required.
When the engine reaches normal operating temperatures, the PCM will turn off the oxygen sensor heater circuit. If the PCM detects problems in the heater control of the oxygen sensor, and the sensor is not heating up as it should be, a P0062 code is issued.
The P0062 fault code can affect vehicles from many manufacturers, including Ford, Infiniti and Jaguar, Fiat Chrysler, Dodge, Saab, Mitsubishi, Dodge, Jeep, Mitsubishi, Fiat, Jeep, Mitsubishi and Mitsubishi.
What causes the P0062 Fault code?
Here are some reasons why P0062 should be set.
- – Defective oxygen sensor (Bank 2 Sensor 3)
- – Short circuit problems with the PCM circuit and the oxygen sensor heater circuit
- – Damage to wiring harnesses or connectors
- – O2 sensor heater element fuse blown
- – Worn heater element
- – Defective engine control relay
What are the symptoms of the P0062 Fault code?
You may experience the following symptoms if your vehicle has the code P0062:
- – Illumination and control of the check engine light
- – Low engine performance
- – Engine stumbles and hesitations during acceleration
- Engine stalling
- – Increased fuel use
- Rich working conditions can cause black smoke from the exhaust
- Poor operating conditions can cause difficulty in the operation of the engine
- – Sparkplugs that have excessive carbon build-up
- – Other fault codes can be set
Note: The catalytic converter’s efficiency is monitored by the “Bank 3 oxygen sensor”. Most cases are not characterized by other symptoms than an increase in emission values.
How do I fix the P0062 fault code?
These are some of the possible repairs that could resolve the P0062 fault code:
- – Test the oxygen sensor, and replace it if it is defective (Bank 2 Sensor 3).
- Repair of short or open circuits, wiring from O2 sensor to PCM
- – Clean the sensor connector and sensor sensor
- If the fuse blows (if applicable), replace the sensor.
- – Replacing the relay (if applicable)
- – A very unlikely replacement for the PCM
How serious is the P0062 Fault code?
It is important to take seriously the fault code P0062. This code indicates that the O2 sensor heater has stopped working. In some cases, this can lead to engine performance issues. The life expectancy for the catalytic converter can be reduced by having the correct air-fuel ratio. The environment will be more polluted if the emission levels are higher.
