What does O2 sensor circuit low voltage bank 1 mean?
Table of Contents. Error code P0131 is described as O2 Sensor Circuit Low Voltage Bank 1 Sensor 1. This indicates there is a problem in the wiring, such as corrosion, breaks or separation.
Where is Bank 1 sensor 1 Bank 1?
Bank 1 Sensor 1 is located in front of the catalytic converter. There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination. A code P0131 may mean that one or more of the following has happened: Short to voltage on O2 signal circuit High resistance or open on O2 signal circuit
What is the reference voltage of bank 1, 3?
This is the bank 1,3 sensor. It’s a four wire sensor being supplied a 0.5 volt reference voltage as well as a power and ground circuit for the o2 sensor heater element. There is also a signal wire from the oxygen sensor to the PCM that can vary between about 0.1 volts to about 0.9 volts according to oxygen content of the exhaust.
What does the p0131 code on bank 1 mean?
Essentially the same as P0136 and P0137 , a P0131 code refers to the first oxygen sensor on Bank 1. P0131 means the O2 oxygen sensor’s voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL.
Why is Bank 1 sensor 2 low voltage?
The O2 sensor circuit for bank 1 sensor 2 is used to give a voltage feedback to the ECM showing how much oxygen is in the exhaust stream to help the engine control the fuel-to-air ratio better. The low voltage condition is excessive oxygen in the exhaust or problems causing the issue. Need help with a P0137 code?
This is the bank 1,3 sensor. It’s a four wire sensor being supplied a 0.5 volt reference voltage as well as a power and ground circuit for the o2 sensor heater element. There is also a signal wire from the oxygen sensor to the PCM that can vary between about 0.1 volts to about 0.9 volts according to oxygen content of the exhaust.
What is the diagnostic code for O2 sensor circuit low voltage?
Cost of diagnosing the P0137 code. P0137 is a diagnostic trouble code (DTC) for “O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What is the O2 sensor code for bank 1?
All our repairs are backed by our 12-month / 12,000-mile warranty. P0137 is the OBD-II generic code indicating the O2 sensor for bank 1 sensor 2 is failing to increase the voltage output above .21 volts indicating excessive oxygen in the exhaust.