Engine-Codes - Ford - P1504 2002 FORD F150

P1504 2002 FORD F150 Code - Intake Air Control Circuit Malfunction

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3
Table of contents

|P1504 2002 FORD F150 code possible causes

  • Faulty Idle Air Control Valve
  • Idle Air Control Valve harness is open or shorted
  • Idle Air Control Valve circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

|How is the P1504 2002 FORD F150 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.

|P1504 2002 FORD F150 code tech notes

The Idle Air Control solenoid resistance is from 6 to 13 ohms.

|What is the cost to diagnose the P1504 2002 FORD F150 code

Labor: 1.0

The cost to diagnose the P1504 2002 FORD F150 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P1504 2002 FORD F150 code detected?

Powertrain Control Module (PCM) has detected an electrical load failure on the Idle Air Control Valve (IACV) circuit.

|What are P1504 2002 FORD F150 code possible symptoms?

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

|What is P1504 2002 FORD F150 code meaning?

The Idle Air Control Valve (IACV) valve assembly controls the engine idle speed and provides a dashpot function. The IAC valve assembly meters intake air around the throttle plate through a bypass within the IAC valve assembly and throttle body. The Powertrain Control Module (PCM) determines the desired idle speed or bypass air and signals the IAC valve assembly through a specified duty cycle. The IAC valve responds by positioning the IAC valve to control the amount of bypassed air. The PCM monitors engine RPM and increases or decreases the IAC duty cycle in order to achieve the desired RPM.

|Need more information with the P1504 2002 FORD F150 code?

Need more information on how to fix the P1504 2002 FORD F150 code?
Get Access to Factory Service Manuals

|Need help with a P1504 2002 FORD F150 code?

Get the P1504 2002 Ford F150 code diagnosed by a professional: Find a repair shop in your area