AutoCodes – Ford – P0059 2012 Ford Fusion

P0059 2012 Ford Fusion Code - HO2S Heater Resistance Bank 2 Sensor 1

Quick Answer

The Heated Oxygen Sensor (HO2S) must reach the operating temperature to provide an accurate voltage signal. Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted, Heated Oxygen Sensor Bank 2 Sensor 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: P0059 2012 Ford Fusion indicates HO2S Heater Resistance Bank 2 Sensor 1.
Common causes: Common causes include Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1, Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted, Heated Oxygen Sensor Bank 2 Sensor 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 4,171

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 Jul 13, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0059 2012 Ford Fusion Description

The Heated Oxygen Sensor (HO2S) must reach the operating temperature to provide an accurate voltage signal. A heating element inside the HO2S minimizes the time required for the sensor to reach operating temperature. With the engine running, the ground is provided to the heater by the HO2S heater low control circuit through a low side driver within the Powertrain Control Module (PCM). The PCM commands the heater ON or OFF to maintain a specific HO2S operating temperature range. The PCM determines the temperature by measuring the current flow through the heater. When the heater is in the ON state, the PCM will pulse the heater OFF for 50 ms, once per second. The PCM calculates the heater resistance on a cold start. The Diagnostic Trouble Code (DTC) will set if the heater current requirements too low or high in the HO2S heater control circuit.

OBDII Code P0059 2012 Ford Fusion - HO2S Heater Resistance Bank 2 Sensor 1 - AutoCodes.com — P0059 2012 Ford Fusion Code - HO2S Heater Resistance Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0059 2012 Ford Fusion?

Faulty Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1
Heated Oxygen Sensor Bank 2 Sensor 1 harness is open or shorted
Heated Oxygen Sensor Bank 2 Sensor 1 circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0059 2012 Ford Fusion?

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 P0059 2012 Ford Fusion 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.

Need more information about the P0059 2012 Ford Fusion code?

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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 P0059 2012 Ford Fusion Code

1. What are the common symptoms of OBDII code P0059 on a 2012 Ford Fusion?

- Common symptoms include decreased fuel efficiency, rough idle, engine misfires, and the illumination of the check engine light.

2. What does the OBDII code P0059 "HO2S Heater Resistance Bank 2 Sensor 1" indicate in a 2012 Ford Fusion?

- This code indicates a malfunction in the heater circuit of the oxygen sensor located in bank 2, sensor 1 of the vehicle.

3. What are the possible causes of OBDII code P0059 on a 2012 Ford Fusion?

- Possible causes include a faulty oxygen sensor, damaged wiring or connectors in the sensor circuit, a blown fuse, or issues with the engine control module (ECM).

4. How can I diagnose the OBDII code P0059 on my 2012 Ford Fusion?

- Diagnosing this code typically involves checking the oxygen sensor's wiring and connectors, testing the sensor's resistance, inspecting related fuses, and scanning the ECM for any stored codes.

5. Can I continue driving my 2012 Ford Fusion with OBDII code P0059?

- It is not recommended to continue driving with this code illuminated, as it can lead to reduced engine performance and potential damage to the catalytic converter.

6. How can I repair OBDII code P0059 on a 2012 Ford Fusion?

- Repairing this code often involves replacing the oxygen sensor in bank 2, sensor 1, repairing any damaged wiring or connectors, and ensuring all related components are functioning properly.

7. Is it possible to clear the OBDII code P0059 on a 2012 Ford Fusion without fixing the issue?

- Clearing the code without addressing the underlying problem may temporarily turn off the check engine light, but the issue will likely reappear once the ECM detects the fault again.

8. How much does it cost to repair OBDII code P0059 on a 2012 Ford Fusion?

- The cost of repairing this code can vary depending on the cause of the issue, but it typically ranges from $150 to $400, including parts and labor.

9. Can a DIY enthusiast fix OBDII code P0059 on a 2012 Ford Fusion?

- While some experienced DIY enthusiasts may be able to replace the oxygen sensor and check the wiring, diagnosing and repairing this code often requires specialized tools and knowledge, so professional assistance is recommended.

10. How long does it take to repair OBDII code P0059 on a 2012 Ford Fusion?

- The repair time for this code can vary based on the exact cause of the issue and the availability of parts, but it typically takes around 1-2 hours for a professional technician to diagnose and fix the problem.