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Home/DTC Codes/Lincoln/MKX/2016-2018 3.7L V6/P0137
P0137

O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

2016-2018 Lincoln MKX 3.7L 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

  1. Test sensor voltage
  2. Check for exhaust leaks
  3. Inspect wiring

Repair Notes

Replace sensor or repair leak.

Related Codes

P0136O2 Sensor Circuit Bank 1 Sensor 2P0138O2 Sensor Circuit High Voltage Bank 1 Sensor 2

Other Powertrain Codes

P0137 on Other Vehicles

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2003-2005 4.6L V8

Lincoln Aviator

2003-2005 4.6L V8 DOHC

Lincoln Aviator

2020-2024 3.0L Twin-Turbo V6

Lincoln Aviator

2020-2024 3.0L V6 Twin Turbo

Lincoln Aviator Grand Touring

2020-2024 3.0L Twin Turbo V6 PHEV

Lincoln Aviator Grand Touring

2020-2024 3.0L Twin-Turbo V6 Hybrid

Lincoln Aviator Grand Touring

2020-2024 3.0L V6 Twin Turbo Hybrid

Lincoln Blackwood

2002-2002 5.4L V8

Common Questions

What does code P0137 mean on a 2016-2018 Lincoln MKX?

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 Lincoln MKX?

Common symptoms of P0137 include: Check Engine Light, Failed emissions.

What causes P0137 on a 2016-2018 Lincoln MKX?

Common causes of P0137 include: Faulty sensor, Exhaust leak after cat, Wiring short to ground.

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