AutoCodes – Subaru – P0132 Subaru

P0132 Subaru Code - HO2S11 Circuit High Voltage

Quick Answer

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. Common causes include Faulty Front Heated Oxygen Sensor Bank 1, Front Heated Oxygen Sensor Bank 1 harness is open or shorted, Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0132 Subaru indicates HO2S11 Circuit High Voltage.
Common causes: Common causes include Faulty Front Heated Oxygen Sensor Bank 1, Front Heated Oxygen Sensor Bank 1 harness is open or shorted, Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 16,874

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0132 Subaru Description

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

OBDII Code P0132 Subaru - HO2S11 Circuit High Voltage - AutoCodes.com — P0132 Subaru Code - HO2S11 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P0132 Subaru?

Faulty Front Heated Oxygen Sensor Bank 1
Front Heated Oxygen Sensor Bank 1 harness is open or shorted
Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
Intake air leaks may be faulty
Exhaust gas leaks

How to Fix the DTC P0132 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 does this mean?

Code Tech Notes

Replacing the O2 Sensor 1 usually takes care of the problem

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0132 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 P0132 Subaru Code

1. What are common symptoms of OBDII code P0132 on a Subaru?

- Common symptoms include poor fuel economy, rough idling, and decreased engine performance.

2. What does the HO2S11 Circuit High Voltage code P0132 indicate in a Subaru?

- The code P0132 indicates that the oxygen sensor (O2 sensor) in bank 1 sensor 1 is reading a high voltage.

3. What are the possible causes of OBDII code P0132 on a Subaru?

- Possible causes include a faulty oxygen sensor, issues with the wiring or connectors, exhaust leaks, or a problem with the engine's fuel system.

4. How can I diagnose the HO2S11 Circuit High Voltage code P0132 on my Subaru?

- A diagnostic scan tool can help pinpoint the issue by reading the code and monitoring the oxygen sensor's voltage output.

5. Can a bad oxygen sensor cause code P0132 on a Subaru?

- Yes, a malfunctioning oxygen sensor is a common culprit for triggering code P0132 in a Subaru.

6. How do I repair OBDII code P0132 on my Subaru?

- Repair options include replacing the oxygen sensor, fixing any wiring issues, repairing exhaust leaks, or addressing fuel system problems.

7. Is it safe to continue driving my Subaru with code P0132 present?

- It is generally not recommended to continue driving with code P0132 as it can lead to reduced fuel efficiency and potential engine damage if left unresolved.

8. How much does it cost to fix OBDII code P0132 on a Subaru?

- The cost of repair can vary depending on the underlying issue, but it typically ranges from $100 to $300 for parts and labor.

9. Will resetting the check engine light resolve code P0132 on my Subaru?

- Resetting the check engine light may temporarily clear the code, but it will likely reappear if the underlying issue is not addressed.

10. Can I fix OBDII code P0132 on my Subaru myself, or should I take it to a mechanic?

- While some DIY enthusiasts may be able to replace the oxygen sensor or check for wiring issues, it is recommended to consult a mechanic for a thorough diagnosis and repair of code P0132 on a Subaru.