OBD Guide

P0137

O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

P0137 is an OBD-II diagnostic trouble code meaning: O2 Sensor Circuit Low Voltage Bank 1 Sensor 2. Common causes: oxygen sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • Unstable idling
  • Check Engine Light Is On

Causes

  • Oxygen sensor malfunction
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Vacuum leaks
  • Sensor contamination
  • Fuel system malfunction
  • Problems with the catalytic converter

How to Fix

  1. Check the condition of the wiring harness and sensor connector
  2. Test the oxygen sensor using a scanner or multimeter
  3. Replace sensor if necessary
  4. Check the system for vacuum leaks
  5. Inspect the catalytic converter
  6. Clean or replace fuel injectors if necessary

Related codes

Error P0137 by Vehicle Brand

FAQ

What does the P0137 code mean?

P0137 is an OBD-II diagnostic trouble code that indicates: O2 Sensor Circuit Low Voltage Bank 1 Sensor 2

What causes a P0137 error code?

The most common causes of P0137 include: Oxygen sensor malfunction; Open or short circuit in wiring harness; Poor contact in the sensor connector; Vacuum leaks.

How do I fix a P0137 diagnostic trouble code?

To fix P0137: Check the condition of the wiring harness and sensor connector. Test the oxygen sensor using a scanner or multimeter. Replace sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0137?

Limited driving only, diagnose soon

How much does it cost to fix P0137?

The estimated repair cost for P0137 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat