AutoCodes – Ford – P1489 Ford

P1489 Ford 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 High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1489 Ford 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: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 36,956

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 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
Comments
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Code P1489 Ford 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 Ford - PCV Heater Control Circuit Fault - AutoCodes.com — P1489 Ford Code - PCV Heater Control Circuit Fault

What does this mean?

What are the Possible Causes of the DTC P1489 Ford?

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 Ford?

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 Ford 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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Information for Specific Ford Models

P1489 2006 Ford Fusion — PCV Heater Control Circuit Fault
P1489 2007 Ford Fusion — PCV Heater Control Circuit Fault
P1489 2008 Ford Fusion — PCV Heater Control Circuit Fault
P1489 2009 Ford Fusion — PCV Heater Control Circuit Fault
P1489 2010 Ford Fusion — PCV Heater Control Circuit Fault
P1489 2011 Ford Fusion — PCV Heater Control Circuit Fault
P1489 2012 Ford Fusion — PCV Heater Control Circuit Fault

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.