What is the diagnostic code for O2 sensor circuit Bank 2?
P0138 is a diagnostic trouble code (DTC) for “O2 Sensor Circuit High Voltage (Bank 1, Sensor 2)”.
Where is the oxygen sensor located on an OBD-2?
This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model. The Heated Oxygen Sensor (2) located rear of catalytic converter produces an output signal relative to oxygen storage capacity of catalytic converter.
What does the code p0138 mean on the O2 sensor?
What the P0138 code means. P0138 is the OBD-II generic code indicating the O2 sensor for bank 1 sensor 2 fails to have a lower voltage output below 1.2 volts for more than 10 seconds indicating a lack of oxygen in the exhaust stream.
How to check for an O2 sensor failure?
Scans codes and documents freeze frame data and then clears codes to verify failure. Monitors O2 sensor data to see if the voltage is switching back and forth between low and high at a fast rate compared to other sensors. Checks the O2 sensor wiring and the harness connections for any corrosion in the connections.
What happens when the oxygen sensor goes bad on a Honda Accord?
Oxygen sensors play a vital role in both engine management and emissions control. When an O2 (oxygen) sensor go bad, it’ll cause your Honda Accord ‘s engine to run less efficiently. Your Accord can exhibit symptoms when the Oxygen sensor has gone bad. Or, it may exhibit none at all.
Are there any codes for an oxygen sensor?
There are a large number of codes relating to oxygen sensor faults. There are also a lot of faults that are often incorrectly thought to be caused by a bad oxygen sensor (also referred to as an O2 Sensor). The O2 codes relating to circuit faults can be tested fairly easily.
What does DTC stand for on O2 sensor?
What does that mean? This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles. Although generic, the specific repair steps may vary depending on make/model. The O2 sensor produces a voltage based on oxygen content in the exhaust.
What does trouble code mean on OBDII scan?
The trouble codes associated with the OBDII scan will reveal which sensor is at fault and why it is bad (at least what the computer thinks is wrong). It is very rare for there to be a problem with an oxygen sensor, and not have the check engine light come on.
Are there any trouble codes for the OBD-II?
Quick links to other trouble codes (starts with): P00xx : P01xx : P02xx : P03xx : P04xx : P05xx : P06xx : P07xx : P08xx : P09xx : P0Axx : P0Bxx : P0Cxx : P1*** : P20xx : P21xx : P22xx : P23xx : P24xx : P25xx : P26xx : P27xx : P28/P29/P2A/P2B : P34xx For all other codes not listed in the links above or below, see our main trouble codes listing.
What is the p01xx OBD-II diagnostic trouble code?
This is the listing of P01xx OBD-II diagnostic trouble codes (DTCs). They all start with P01 (e.g. P0101, P0140, etc.), the first letter P designates they are powertrain related codes, the next digits 01 indicates that they are fuel & air metering related codes.
When did the OBD2 system first come out?
With a code reader or scanner, you can access one or more OBD2 codes that indicate the issues. OBD system started in the early 1980s with a simple function to turn on the malfunction indicator light or “idiot light” when it detects a malfunction.
What causes an EOBD fault code ( DTC )?
DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.
P0138 is a diagnostic trouble code (DTC) for “O2 Sensor Circuit High Voltage (Bank 1, Sensor 2)”.
When do you need an OBD2 diagnostic code?
These codes are stored when a sensor in the car reports a reading that is outside the normal/accepted range (Eg: fuel mixture too rich). These DTC’s identify a particular problem area and are intended to provide the technician with a guide as to where a fault might be occurring within the vehicle.
What does the OBD code p0102 stand for?
OBD-II Code P0102 is defined as a Mass or Volume Air Flow Circuit Low Input The Mass Airflow Sensor (MAF) measures the amount of air entering the engine and the Engine Control Module (ECM) uses the information to determine the proper amount of fuel quantity and ignition timing.