what does it mean if my Tesla Outback has a P0137 code

Subaru Outback 4th Generation (2010-2014)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

Error Code: P0137

3 min read

477 words

Problem Statement

Learn how to diagnose and fix P0137 O2 sensor circuit low voltage in Tesla Outback. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code

P0137

Affected Component

Exhaust System

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the exhaust system to cool before handling components.

Symptoms

•Check engine light illuminated
•Poor fuel economy
•Rough idle or stalling
•Increased emissions
•Engine performance issues, such as lack of power during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0137 and check for any related codes.
2
Inspect the wiring and connectors related to the Bank 1 Sensor 2 O2 sensor for signs of damage or corrosion.
3
Check the O2 sensor's voltage output using a multimeter while the engine is running to determine if the sensor is functioning properly.
4
Verify the exhaust system for leaks that could affect O2 sensor readings.
5
Inspect the ECM and related ground connections to ensure proper electrical continuity.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•O2 sensor socket
•Multimeter
•Torque wrench

Parts Required

•Replacement O2 sensor (Bank 1 Sensor 2)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0137 and check for any related codes.
2
Inspect the wiring and connectors related to the Bank 1 Sensor 2 O2 sensor for signs of damage or corrosion.
3
Check the O2 sensor's voltage output using a multimeter while the engine is running to determine if the sensor is functioning properly.
4
Verify the exhaust system for leaks that could affect O2 sensor readings.
5
Inspect the ECM and related ground connections to ensure proper electrical continuity.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle's battery to ensure safety while working with electrical components.

2. Inspect and Replace O2 Sensor

Locate the O2 Sensor
- Identify the Bank 1 Sensor 2 O2 sensor, usually found after the catalytic converter.
Remove the O2 Sensor
- Use an O2 sensor socket to carefully unscrew the sensor from its mounting position.
- Ensure you have the correct replacement sensor ready.
Install New O2 Sensor
- Apply anti-seize compound (if applicable) to the threads of the new sensor.
- Screw the new sensor in place, tightening it to the manufacturer's specified torque (typically around 30 ft-lbs).

3. Reconnect Electrical Connections

Ensure all electrical connections to the new O2 sensor are securely attached and free of corrosion.

4. Clear Codes and Test

Reconnect the battery and use the OBD-II scanner to clear the P0137 code.
Start the engine and allow it to reach operating temperature.

5. Final Checks

Monitor the O2 sensor readings with the scanner to ensure they are within normal ranges.
Conduct a test drive to evaluate engine performance.