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P1137 Subaru Code - Oxygen Sensor Circuit Bank 1 Sensor 1

- Code Popularity: 22,103 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1137 Subaru?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Front Oxygen A/F Sensor 11
  • Front Oxygen A/F Sensor 11 harness is open or shorted
  • Front Oxygen A/F Sensor 11 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)
⚠ Does your Subaru have Safety Recalls? → Check here

How to Fix the DTC P1137 Subaru?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes





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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1137 Subaru code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P1137 Subaru Description

The sensor contains a pumping cell and a reference cell separated by a porous diffusion gap. The purpose of the pumping cell is to allow oxygen ions into or out of the reference cell depending on demand. The reference cell must be kept at a lambda value of 1.
The Engine Control Module (ECM) supplies the pumping cell with current so that sensor output voltage from the reference stays constant.
When the reference cell is lean, a positive current is used to pump oxygen out the cell.
When the reference cell is rich, a negative current is used to pump oxygen into the cell.
When the reference cell is at lambda 1, there will be no current applied to the pumping cell. The amount of current supplied is proportional to the amount of oxygen in the exhaust gases. The ECM uses the amount of current as a signal. The ECM uses the signal to calculate the actual air to fuel ratio. The injection duration is altered accordingly.
The sensor operates correctly only when it reaches a certain temperature. The heating element brings the sensor up to operating temperature quickly.

OBDII Code P1137 Subaru - Oxygen Sensor Circuit Bank 1 Sensor 1 - AutoCodes.com
P1137 Subaru Code - Oxygen Sensor Circuit Bank 1 Sensor 1

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