AutoCodes – Subaru – P1136 Subaru

P1136 Subaru Code - Front Left Oxygen Sensor Curcuit Shorted

Quick Answer

P1136 Subaru indicates Front Left Oxygen Sensor Curcuit Shorted. Common causes include Faulty O2 Sensor, O2 Sensor harness is open or shorted, O2 Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1136 Subaru indicates Front Left Oxygen Sensor Curcuit Shorted.
Common causes: Common causes include Faulty O2 Sensor, O2 Sensor harness is open or shorted, O2 Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 3,991

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 30, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1136 Subaru Description

OBDII Code P1136 Subaru - Front Left Oxygen Sensor Curcuit Shorted - AutoCodes.com — P1136 Subaru Code - Front Left Oxygen Sensor Curcuit Shorted

What does this mean?

What are the Possible Causes of the DTC P1136 Subaru?

Faulty O2 Sensor
O2 Sensor harness is open or shorted
O2 Sensor circuit poor electrical connection

How to Fix the DTC P1136 Subaru?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1136 Subaru code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1136 Subaru Code

1. What does the OBDII code P1136 mean for a Subaru?

P1136 indicates a short circuit in the front left oxygen sensor circuit, leading to improper sensor readings and potential engine performance issues.

2. What are the symptoms of code P1136 in a Subaru?

Common symptoms include poor fuel efficiency, rough idling, decreased engine performance, and the check engine light turning on.

3. What causes the P1136 code to appear?

The most common causes are a damaged oxygen sensor, frayed or shorted sensor wiring, a faulty sensor connector, or an issue with the engine control module (ECM).

4. Can I drive my Subaru with the P1136 code?

While the vehicle may still be drivable, ignoring the P1136 code can lead to decreased performance, higher emissions, and potential damage to the catalytic converter over time.

5. How do I diagnose the P1136 code on a Subaru?

Start by inspecting the oxygen sensor and its wiring for damage or corrosion, check the sensor connector for secure connections, and use a multimeter to test for shorts or open circuits.

6. Does the P1136 code mean the oxygen sensor is faulty?

Not necessarily. While the oxygen sensor may be faulty, the issue could also stem from wiring problems, a bad connector, or ECM issues.

7. How much does it cost to fix the P1136 code on a Subaru?

Repairs can range from $100 to $300 if it's just a sensor replacement, but costs may increase if there's wiring damage or ECM issues involved.

8. Can a bad oxygen sensor cause the P1136 code?

Yes, a bad or failing oxygen sensor can trigger the P1136 code due to inaccurate readings caused by the short circuit.

9. How do I reset the P1136 code after repairs?

After fixing the underlying issue, use an OBDII scanner to clear the code or disconnect the battery for a few minutes to reset the ECM.

10. What tools are needed to fix the P1136 code?

You'll typically need an OBDII scanner, a multimeter for electrical testing, basic hand tools, and possibly an oxygen sensor socket if replacement is required.