AutoCodesFord – P1489 2008 Ford Fusion

P1489 2008 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 2008 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 2,432
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 31, 2020
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Code P1489 2008 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 2008 Ford Fusion - PCV Heater Control Circuit Fault - AutoCodes.com
P1489 2008 Ford Fusion Code - PCV Heater Control Circuit Fault

What are the Possible Causes of the DTC P1489 2008 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 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 P1489 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.

Need more information about the P1489 2008 Ford Fusion code?

Need more information on how to fix the P1489 2008 Ford Fusion code? Get Access to Factory Service Manuals

Need Help with the 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 2008 Ford Fusion Code

1. What are common symptoms of OBDII code P1489 (PCV Heater Control Circuit Fault) in a 2008 Ford Fusion?

- Common symptoms include the check engine light coming on, reduced engine performance, and potential rough idling.

2. What does the PCV Heater Control Circuit do in a 2008 Ford Fusion?

- The PCV Heater Control Circuit helps regulate the temperature of the Positive Crankcase Ventilation (PCV) system to prevent excessive condensation.

3. What are possible causes of OBDII code P1489 in a 2008 Ford Fusion?

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

4. How can I diagnose the PCV Heater Control Circuit fault in my 2008 Ford Fusion?

- Diagnosing the issue may involve using an OBDII scanner to retrieve the specific trouble code, inspecting the wiring and connectors for damage, and testing the PCV heater control module for proper function.

5. Can I still drive my 2008 Ford Fusion with OBDII code P1489 present?

- It is generally not recommended to drive with a persistent check engine light, as it may indicate underlying issues that could potentially worsen over time.

6. How can I repair the PCV Heater Control Circuit fault in a 2008 Ford Fusion?

- Repairing the issue may involve replacing the faulty PCV heater control module, repairing damaged wiring or connectors, and clearing the trouble code with an OBDII scanner.

7. Are there any DIY tips for addressing OBDII code P1489 in a 2008 Ford Fusion?

- While some basic inspections and checks can be done by DIY enthusiasts, diagnosing and repairing the PCV Heater Control Circuit fault may require professional tools and expertise.

8. Is resetting the check engine light sufficient to address OBDII code P1489 in a 2008 Ford Fusion?

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

9. Can a PCV Heater Control Circuit fault cause other problems in a 2008 Ford Fusion?

- A malfunctioning PCV Heater Control Circuit can lead to increased emissions, reduced fuel efficiency, and potential damage to engine components if not addressed promptly.

10. How can I prevent OBDII code P1489 from recurring in my 2008 Ford Fusion?

- Regular maintenance, including checking the PCV system components and addressing any issues promptly, can help prevent the recurrence of OBDII code P1489 in your Ford Fusion.

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