What Does Engine Code P0137 Mean

P0137 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)

The O2 sensor on your vehicle’s exhaust system is responsible for monitoring the amount of oxygen in the exhaust gas. This information is used by the engine computer to adjust the air/fuel mixture to optimize engine performance and emissions.

If the O2 sensor circuit voltage is too high, it can indicate a problem with the sensor itself, the wiring, or the engine computer.

Symptoms of a P0137 code may include

Reduced engine performance
Increased fuel consumption
Rough idling
Check Engine light illuminated

To diagnose a P0137 code, a technician will use a scan tool to check the O2 sensor voltage. If the voltage is consistently high, the technician will inspect the wiring and sensor for damage. If the wiring and sensor are in good condition, the technician will replace the engine computer.

So What Does Engine Code P0137 Mean?

P0137 is a generic OBD-II code that indicates that the oxygen sensor heater circuit for bank 1 sensor 2 has a malfunction. This means that the heater for the oxygen sensor on the downstream side of the catalytic converter is not working properly.

What Does Engine Code P0137 Mean?

Engine code P0137 is a generic OBD-II trouble code that indicates that the oxygen sensor heater circuit for the sensor downstream of the catalytic converter is malfunctioning. This code is set when the oxygen sensor heater circuit voltage is below the specified threshold for a specified amount of time.

Symptoms

Some of the symptoms of a P0137 code include:

A check engine light on the dashboard
A decrease in fuel economy
A rough idle
Increased emissions
Engine hesitation
Stalling

Causes

There are a number of different causes that can lead to a P0137 code, including:

A faulty oxygen sensor
A damaged oxygen sensor wiring harness
A bad oxygen sensor connector
A problem with the engine control module (ECM)

Diagnosis

A P0137 code can be diagnosed by a qualified technician using a OBD-II scanner. The scanner will be able to read the code and provide information about the specific sensor that is causing the problem. The technician will also perform a visual inspection of the oxygen sensor and wiring harness.

Repair

The repair for a P0137 code will depend on the specific cause of the problem. If the oxygen sensor is faulty, it will need to be replaced. If the wiring harness or connector is damaged, it will need to be repaired or replaced. If the ECM is the problem, it will need to be repaired or replaced.

Prevention

There are a few things that you can do to help prevent a P0137 code from occurring, including:

Keeping your vehicle well-maintained
Replacing your oxygen sensor according to the manufacturer’s recommended schedule
Avoiding driving through deep water
Inspecting your oxygen sensor wiring harness for damage

Conclusion

A P0137 code is a serious problem that can lead to a number of different symptoms. It is important to have the code diagnosed and repaired as soon as possible to avoid further damage to your vehicle.

Also Read: What Does Engine Code P0138 Mean