P0137
O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
2010-2021 Fiat Uno 1.0L I4 Flex Fire Evo
Moderate SeverityPowertrainGeneric (SAE)
Description
The downstream O2 sensor on Bank 1 is reading low voltage consistently.
Symptoms
- Check Engine Light
- Failed emissions
Common Causes
- Faulty sensor
- Exhaust leak after cat
- Wiring short to ground
Diagnostic Steps
- Test sensor voltage
- Check for exhaust leaks
- Inspect wiring
Repair Notes
Replace sensor or repair leak.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0137 on Other Vehicles
Fiat 124 Spider
2017-2020 1.4L I4 Turbo
Fiat 126p Maluch
1973-2000 0.65L I2 Air-Cooled
Fiat 126p Maluch
1987-2000 0.7L I2 Air-Cooled
Fiat 500
2012-2019 1.4L I4
Fiat 500 Abarth
2012-2019 1.4L I4 Turbo
Fiat 500 BR
2011-2020 1.4L I4 Flex Fire Evo
Fiat 500 PL
2007-2025 1.0L I3 Hybrid FireFly 70
Fiat 500 PL
2007-2025 1.2L I4 Fire 69
Common Questions
What does code P0137 mean on a 2010-2021 Fiat Uno?
P0137 stands for "O2 Sensor Circuit Low Voltage Bank 1 Sensor 2". The downstream O2 sensor on Bank 1 is reading low voltage consistently.
What are the symptoms of P0137 on a Fiat Uno?
Common symptoms of P0137 include: Check Engine Light, Failed emissions.
What causes P0137 on a 2010-2021 Fiat Uno?
Common causes of P0137 include: Faulty sensor, Exhaust leak after cat, Wiring short to ground.