P0137
O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
2013-2019 Cadillac XTS 3.6L V6
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
Cadillac ATS
2013-2019 2.0L Turbo I4
Cadillac ATS
2013-2019 2.5L I4
Cadillac ATS-V
2016-2019 3.6L Twin-Turbo V6
Cadillac CT4
2020-2024 2.0L Turbo I4
Cadillac CT4
2020-2024 2.7L Turbo I4
Cadillac CT4-V
2020-2024 2.7L Turbo I4
Cadillac CT4-V Blackwing
2022-2024 3.6L Twin-Turbo V6
Cadillac CT5
2020-2024 2.0L Turbo I4
Common Questions
What does code P0137 mean on a 2013-2019 Cadillac XTS?
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 Cadillac XTS?
Common symptoms of P0137 include: Check Engine Light, Failed emissions.
What causes P0137 on a 2013-2019 Cadillac XTS?
Common causes of P0137 include: Faulty sensor, Exhaust leak after cat, Wiring short to ground.