AutoCodes – Subaru – P1153 Subaru

P1153 Subaru Code - HO2S11 Sensor Circuit Range/Performance High

Quick Answer

P1153 Subaru indicates HO2S11 Sensor Circuit Range/Performance High. Common causes include Faulty HO2S11, HO2S11 harness is open or shorted, HO2S11 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: P1153 Subaru indicates HO2S11 Sensor Circuit Range/Performance High.
Common causes: Common causes include Faulty HO2S11, HO2S11 harness is open or shorted, HO2S11 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 23,250

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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Table of contents Created and updated by William Orellana on May 03, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1153 Subaru Description

OBDII Code P1153 Subaru - HO2S11 Sensor Circuit Range/Performance High - AutoCodes.com — P1153 Subaru Code - HO2S11 Sensor Circuit Range/Performance High

What does this mean?

What are the Possible Causes of the DTC P1153 Subaru?

Faulty HO2S11
HO2S11 harness is open or shorted
HO2S11 circuit poor electrical connection

How to Fix the DTC P1153 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 P1153 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 P1153 Subaru Code

1. What are the common symptoms of OBDII code P1153 in a Subaru?

- Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and potential stalling.

2. What does the HO2S11 sensor refer to in relation to P1153 code in a Subaru?

- The HO2S11 sensor is the Heated Oxygen Sensor located in Bank 1 Sensor 1 position, which monitors the oxygen levels in the exhaust gases.

3. What are the typical causes of OBDII code P1153 in a Subaru?

- The common causes of P1153 include a faulty HO2S11 sensor, wiring issues, vacuum leaks, exhaust system leaks, or a malfunctioning engine control module (ECM).

4. How can I diagnose the HO2S11 sensor circuit for a P1153 code in my Subaru?

- Diagnosis involves checking the sensor's wiring for any damage, testing the sensor's voltage output, and inspecting for any exhaust system leaks.

5. Can a dirty air filter cause OBDII code P1153 in a Subaru?

- A dirty air filter is unlikely to directly cause P1153, but it can lead to poor engine performance and affect the overall emissions system.

6. What is the recommended repair for OBDII code P1153 in a Subaru?

- The recommended repair is to replace the faulty HO2S11 sensor, repair any wiring issues, address vacuum or exhaust leaks, and clear the code using a scan tool.

7. Is it safe to continue driving my Subaru with OBDII code P1153 present?

- It is not recommended to drive with the P1153 code active, as it can lead to further engine damage and affect vehicle performance and emissions.

8. Can a DIY enthusiast fix OBDII code P1153 in a Subaru?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to address P1153 by replacing the sensor or fixing wiring issues.

9. How long does it typically take to repair OBDII code P1153 in a Subaru at a mechanic?

- The repair time for P1153 can vary depending on the exact cause, but it usually takes a few hours for a mechanic to diagnose and fix the issue.

10. Will resetting the ECM clear OBDII code P1153 in a Subaru temporarily?

- Resetting the ECM may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear after driving the vehicle for some time.