AutoCodes – Ford – P1489 2010 Ford Fusion

P1489 2010 Ford Fusion Code - PCV Heater Control Circuit Fault

Quick Answer

When the intake air temperature is less than 0°C (32°F) the Powertrain Control Module (PCM) grounds the Positive Crankcase Ventilation Valve Heater Control (PCVHC) circuit and turns the heater ON. Common causes include Faulty Positive Crankcase Ventilation (PCV) Heater, Positive Crankcase Ventilation Heater harness is open or shorted, Positive Crankcase Ventilation Heater 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: P1489 2010 Ford Fusion indicates PCV Heater Control Circuit Fault.
Common causes: Common causes include Faulty Positive Crankcase Ventilation (PCV) Heater, Positive Crankcase Ventilation Heater harness is open or shorted, Positive Crankcase Ventilation Heater 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 2,989

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 31, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1489 2010 Ford Fusion Description

When the intake air temperature is less than 0°C (32°F) the Powertrain Control Module (PCM) grounds the Positive Crankcase Ventilation Valve Heater Control (PCVHC) circuit and turns the heater ON. When the intake air temperature exceeds 9°C (48°F) the heater is turned OFF. The PCV Heater is also off when the engine is not running to prevent unnecessary battery drain. The heater is also off if the vehicle charging system is greater than 16 volts. This minimizes heater element overload.
The Diagnostic Trouble Code (DTC) sets when the PCM detects the actual PCVHC circuit voltage is less than or greater than the desired voltage.

OBDII Code P1489 2010 Ford Fusion - PCV Heater Control Circuit Fault - AutoCodes.com — P1489 2010 Ford Fusion Code - PCV Heater Control Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P1489 2010 Ford Fusion?

Faulty Positive Crankcase Ventilation (PCV) Heater
Positive Crankcase Ventilation Heater harness is open or shorted
Positive Crankcase Ventilation Heater circuit poor electrical connection

How to Fix the DTC P1489 2010 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 P1489 2010 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 P1489 2010 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 P1489 2010 Ford Fusion Code

1. What are the common symptoms of OBDII code P1489 in a 2010 Ford Fusion?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and the Check Engine light being illuminated.

2. What does the P1489 code on a 2010 Ford Fusion indicate?

- The P1489 code indicates a fault in the Positive Crankcase Ventilation (PCV) heater control circuit.

3. What are the possible causes of the PCV heater control circuit fault in a 2010 Ford Fusion?

- Potential causes include a faulty PCV heater control circuit, damaged wiring or connectors, a malfunctioning PCV heater control module, or a blown fuse.

4. How can I diagnose the PCV heater control circuit fault in my 2010 Ford Fusion?

- Diagnosing the issue typically involves checking the PCV heater control circuit for continuity, inspecting wiring and connectors for damage, and testing the PCV heater control module.

5. Can I drive my 2010 Ford Fusion with the P1489 code present?

- It is not recommended to drive your vehicle with the P1489 code present, as it can lead to engine performance issues and potentially cause further damage.

6. How can I repair the PCV heater control circuit fault in my 2010 Ford Fusion?

- Repairing the issue may involve replacing a faulty PCV heater control module, repairing damaged wiring or connectors, or replacing a blown fuse.

7. Is it possible to reset the P1489 code in a 2010 Ford Fusion without fixing the issue?

- While you can clear the code using an OBDII scanner, it is important to address the underlying problem to prevent future issues with your vehicle.

8. Can a DIY enthusiast fix the PCV heater control circuit fault in a 2010 Ford Fusion?

- Depending on your skill level and access to tools, you may be able to diagnose and repair the issue yourself, but it is recommended to consult a professional if you are unsure.

9. How much does it typically cost to repair the PCV heater control circuit fault in a 2010 Ford Fusion?

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

10. Are there any preventative measures I can take to avoid the PCV heater control circuit fault in my 2010 Ford Fusion?

- Regular maintenance, such as checking and replacing the PCV valve and ensuring proper engine ventilation, can help prevent issues that may trigger the P1489 code.