Engine-Codes - Lincoln - P1489 LINCOLN

P1489 LINCOLN - PCV Heater Control Circuit Fault

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1489 LINCOLN Possible Causes

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

How is the P1489 LINCOLN code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P1489 LINCOLN code

Labor: 1.0

The cost to diagnose the P1489 LINCOLN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1489 LINCOLN Meaning

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.

More Information

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