Error Code P2220: What It Means & What To Do?
OBD Code P2220 - NOx Sensor Heater Control Circuit High Bank 2
The
trouble code P2220 can be defined as NOx Sensor Heater Control Circuit High
Bank 2. The NOx sensor heater control circuit is being monitored by the engine
control module. This trouble code would be set by the ECM when the NOx sensor
heater control circuit would not be as per the specifications set by the
manufacturer. The engine control module, powertrain control module or the
transmission control module monitors this circuit depending upon the particular
automobile.
Learn More About OBD Error Code P2220
This error
code is for the engine control module detecting the NOx sensor heater control
circuit has a high voltage reading for bank 2 of the engine. NOx (Nitrogen
Oxide) sensors are mainly utilized for the emission systems in diesel engines.
Their main function is to detect NOx levels coming out of the exhaust after
burning in the combustion chamber. The system would then recycle these using
various methods. Given the harsh environment of these sensors, they are
composed of a combination of ceramic as well as certain type of zirconia.
What causes
this problem with the NOx Sensor Heater Control Circuit High Bank 2?
- Malfunctioning
NOx sensor
- There can
be inoperative Heater in NOx sensor
- Some issues
related to the ECM or NOx sensor
- There might
be water intrusion
- The
connector tabs might be broken
- There might
be melted harness
- Grubby
sensor element
- The heater control circuit might have high
resistance
Replace/Repair These Parts To Fix OBD Code P2220
- Oxygen Sensor - An oxygen sensor plays a vital role in the fuel delivery system and air to fuel ratio mixing functions. Without this sensor proper combustion of fuel cannot take place, thus causing performance issues. Also the exhaust system will not be able to detect the emissions properly if this sensor becomes inactive, resulting in increased emissions from the exhaust. Thus replace faulty oxygen sensor today!
- Engine Control Module - There can be some engine performance issues due to faulty engine control module. If the ECM fails or has any problems it can lead to performance issues with the vehicle like misfires, hesitation, loss of power, and sometimes even decreased fuel economy.
- Exhaust System Parts - Are you seeing this error code flashing? Well, it could be due to malfunctioning exhaust system parts. In addition to this error code, the driver is likely to experience a noisy engine, decrease in power and acceleration. We strongly recommend you to purchase new exhaust system parts from Parts Avatar.
- Powertrain Control Module - PCM stands for powertrain control module. It is a car part, a control unit which is utilized on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit (TCU).
- Engine Coolant Temperature Sensor - The engine coolant temperature sensor is also known as the coolant temperature switch. It is an engine management system sensor which is utilized to monitor the temperature of the engine’s coolant. If there are any faults in the ECT sensor, then it would lead to engine performance issues. Purchase high grade engine coolant temperature sensor from us online.
- Electronic Control Unit - If your automobile's check engine light remains on constantly, and never goes off, there's a good chance that your vehicle has a damaged electronic control unit. There are a lot of reasons why a car's check engine light will remain on. The most common reason is a defective ECU.
- Diagnostic Tools - It is always advisable to use correct tools and equipment while resolving any OBD code issue as even small mistakes can lead to wrong diagnosis. Thus, always take help from a professional who has the knowledge and experience to such tools in efficient manner. Buy new quality diagnostic tools from us today!
Symptoms Of The OBD Error Code P2220
Our main motive is to achieve customer satisfaction as for us our customers are everything and that’s why we will help you to diagnose P2220 code by mentioning some major symptoms below:
Common Symptoms
- The service engine soon light can start lighting up
- Failure in the emissions test
How To Correct NOx Sensor Heater Control Circuit High Bank 2 Issue
If you
wish to correct this fault code, then you have to follow certain steps. Correcting
a problem needs your careful attention. Here are some ways with the help of
which you will be able to correct the OBD Code P2220:
- You must
recheck the system to make sure it goes into closed loop and the NOx sensors
are reading correctly
- Make sure
to mend the melted harness and connector
- Repair or
replace the quirky NOx sensor for bank two
- It is
necessary to perform proper service of the unsound PCM/ECM
- Adjust
the flawed ECU
However,
if you face any issue then we have stocked a wide range of best priced PCM,
exhaust system parts, oxygen sensors, engine coolant temperature sensor, auto
exhaust components, denso oxygen sensor, bosch oxygen sensor, bosch o2 sensor
and more to help you out in fixing your car.
Easy Diagnosis Of Engine Error OBD Code P2220
Here are
some steps which you should follow in order to diagnose this fault code:
- This is a
general type of error code which is diagnosed with the help of a scanner.
- The
mechanic will insert a scanner to diagnostic port of the vehicle and recover
the codes and freeze frame data.
- If he
happens to find any additional error codes, he has to address them as well.
- Once it
is done, he has to reset the vehicle, and then test drive to see if the error
code appears.
- If the
error code does not return, then there can be an erratic condition.
- Then the
mechanic has to check the wires, connectors and other electrical components and
quickly replace them if he finds them to be damaged or defective.
- Check for
the NOx sensor for bank 2 heater control circuit and compare to sensor for bank
1.
- Also
check for the O2 sensor and wiring for physical damages.
- Parts or
components should not be replaced with reference to only a P2220 DTC. The
vehicle service manual should be consulted for more information on possible
causes of the fault, along with required testing.
- If all
the components seems to work perfectly, inspect the PCM for faults and
replacement along with reprogramming.
Common
Mistakes When Diagnosing The P2220 Code
- Many a
times the mechanic might simply clear the ECM memory codes before inspecting
the freeze frame data for the main failure issue, so the failure might be
duplicated and repaired.
- Another
mistake might be failing to clear the ECM codes after the codes are fixed so
the engine control module will enable the system to work normally once again.
- Most of
the mechanics do not check the harness for shorts in the harness or connector.