AutoCodes – Ford – P0059 2008 Ford Fusion

P0059 2008 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 2008 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 5,429

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 2008 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 2008 Ford Fusion - HO2S Heater Resistance Bank 2 Sensor 1 - AutoCodes.com — P0059 2008 Ford Fusion Code - HO2S Heater Resistance Bank 2 Sensor 1

What does this mean?

What are the Possible Causes of the DTC P0059 2008 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 2008 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 2008 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.

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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 2008 Ford Fusion Code

1. What does OBDII code P0059 on a 2008 Ford Fusion mean?

This code indicates a potential issue with the HO2S (Heated Oxygen Sensor) heater circuit for Bank 2 Sensor 1.

2. What are common symptoms of OBDII code P0059 in a 2008 Ford Fusion?

Common symptoms include poor fuel economy, engine misfires, rough idling, and the illumination of the Check Engine Light.

3. What are some possible causes of OBDII code P0059 in a 2008 Ford Fusion?

Potential causes include a faulty oxygen sensor, a damaged wiring harness, a blown fuse, or a malfunctioning PCM (Powertrain Control Module).

4. How can I diagnose the cause of OBDII code P0059 on my 2008 Ford Fusion?

Diagnosis typically involves checking the wiring and connectors for damage, testing the oxygen sensor's resistance, and verifying the operation of the heater circuit.

5. How can I repair OBDII code P0059 in a 2008 Ford Fusion?

Repair options may include replacing the Bank 2 Sensor 1 oxygen sensor, repairing damaged wiring, replacing a blown fuse, or reprogramming the PCM if necessary.

6. Is it safe to continue driving my 2008 Ford Fusion with OBDII code P0059?

It is generally not recommended to continue driving with this code unresolved, as it can lead to decreased fuel efficiency and potential damage to the engine over time.

7. Can I fix OBDII code P0059 in a 2008 Ford Fusion myself?

If you have the necessary tools and automotive repair experience, you may be able to address this code yourself by following diagnostic procedures and replacing any faulty components.

8. How much does it typically cost to repair OBDII code P0059 in a 2008 Ford Fusion?

The cost of repair can vary depending on the specific cause of the code, but it may range from around $100 to $300 or more for parts and labor.

9. Will resetting the Check Engine Light clear OBDII code P0059 in a 2008 Ford Fusion?

Resetting the light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the vehicle is driven and the PCM performs another diagnostic check.

10. How can I prevent OBDII code P0059 from recurring in my 2008 Ford Fusion?

Regular maintenance, such as replacing oxygen sensors at recommended intervals and ensuring proper wiring connections, can help prevent this code from recurring.