AutoCodes – Ford – P0059 2009 Ford Fusion

P0059 2009 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 2009 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 5,115

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 2009 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 2009 Ford Fusion - HO2S Heater Resistance Bank 2 Sensor 1 - AutoCodes.com — P0059 2009 Ford Fusion Code - HO2S Heater Resistance Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0059 2009 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 2009 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 2009 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 2009 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 2009 Ford Fusion Code

1. What does OBDII code P0059 for a 2009 Ford Fusion mean?

This code indicates a malfunction in the heater circuit for Bank 2 Sensor 1 oxygen sensor, also known as the HO2S.

2. What are common symptoms of OBDII code P0059 in a 2009 Ford Fusion?

Common symptoms include poor fuel economy, rough idling, stalling, and the illumination of the check engine light.

3. What are the possible causes of OBDII code P0059 in a 2009 Ford Fusion?

Potential causes include a faulty oxygen sensor, damaged wiring or connectors, a blown fuse, or an issue with the engine control module (ECM).

4. How can I diagnose OBDII code P0059 in my 2009 Ford Fusion?

You can diagnose this code by checking the oxygen sensor heater circuit for continuity, inspecting wiring for damage, and using a scan tool to monitor sensor data.

5. How do I repair OBDII code P0059 in my 2009 Ford Fusion?

To repair this code, you may need to replace the Bank 2 Sensor 1 oxygen sensor, repair any damaged wiring or connectors, and ensure the fuse related to the sensor heater is intact.

6. Can I drive my 2009 Ford Fusion with OBDII code P0059?

It is not recommended to drive your vehicle with this code present, as it can lead to poor engine performance and potential damage over time.

7. How much does it cost to repair OBDII code P0059 in a 2009 Ford Fusion?

The cost of repairs can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Will resetting the check engine light clear OBDII code P0059 in my 2009 Ford Fusion?

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

9. Can a DIY enthusiast fix OBDII code P0059 in a 2009 Ford Fusion?

A knowledgeable DIY enthusiast with the right tools and skills may be able to diagnose and repair this code, but it is recommended to seek professional help if unsure.

10. Is OBDII code P0059 a common issue in 2009 Ford Fusion vehicles?

While not extremely common, this code can occur in 2009 Ford Fusion models due to sensor wear, wiring issues, or other factors.