AutoCodes – Ford – P1464 2003 Ford F150

P1464 2003 Ford F150 Code - Air Conditioning Demand Out Of Self Test Range

Quick Answer

The Diagnostic Trouble Code (DTC) P1464 can be set if A/C or defroster is on during Key On Engine Off (KOEO) or Key On Engine Running (KOER) self-test. Common causes include Faulty A/C Demand Switch, Faulty Wide Open Throttle A/C Cutoff (WAC) Relay, Wide Open Throttle A/C Cutoff Relay harness is open or shorted. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P1464 2003 Ford F150 indicates Air Conditioning Demand Out Of Self Test Range.
Common causes: Common causes include Faulty A/C Demand Switch, Faulty Wide Open Throttle A/C Cutoff (WAC) Relay, Wide Open Throttle A/C Cutoff Relay harness is open or shorted.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 6,647

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1464 2003 Ford F150 Description

The Diagnostic Trouble Code (DTC) P1464 can be set if A/C or defroster is on during Key On Engine Off (KOEO) or Key On Engine Running (KOER) self-test. The DTC P1464 is set when ACCS input to Powertrain Control Module (PCM) was high during self-test.

OBDII Code P1464 2003 Ford F150 - Air Conditioning Demand Out Of Self Test Range - AutoCodes.com — P1464 2003 Ford F150 Code - Air Conditioning Demand Out Of Self Test Range

What does this mean?

What are the Possible Causes of the DTC P1464 2003 Ford F150?

Faulty A/C Demand Switch
Faulty Wide Open Throttle A/C Cutoff (WAC) Relay
Wide Open Throttle A/C Cutoff Relay harness is open or shorted
Wide Open Throttle A/C Cutoff Relay circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1464 2003 Ford F150?

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 P1464 2003 Ford F150 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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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 P1464 2003 Ford F150 Code

1. What does the OBDII code P1464 mean on a 2003 Ford F150?

P1464 indicates that the air conditioning demand signal is out of the expected range during the self-test.

2. What are the common symptoms of code P1464 on a 2003 Ford F150?

Symptoms may include the air conditioning not functioning properly, poor cooling performance, or the A/C system shutting off unexpectedly.

3. What causes the P1464 code to appear on a 2003 Ford F150?

The code can be triggered by a faulty A/C switch, wiring issues, a malfunctioning A/C clutch relay, or a problem with the PCM (Powertrain Control Module).

4. Can a bad A/C pressure sensor cause the P1464 code?

Yes, a malfunctioning A/C pressure sensor can cause the signal to go out of range, leading to the P1464 code.

5. How do I diagnose the P1464 code on my 2003 Ford F150?

Start by checking the A/C switch and wiring for damage or loose connections. Then inspect the A/C pressure sensor, clutch relay, and related circuits.

6. Is it safe to drive with code P1464 on a 2003 Ford F150?

Yes, itâ€™s generally safe to drive, but your A/C system may not function correctly until the issue is resolved.

7. Can a blown fuse cause the P1464 code on a 2003 Ford F150?

Yes, a blown A/C-related fuse can disrupt the electrical circuit and contribute to this code appearing.

8. How do I fix the P1464 code on my 2003 Ford F150?

Repairs may include replacing a faulty A/C switch, repairing damaged wiring or connectors, replacing the A/C clutch relay, or recalibrating the PCM.

9. Does the P1464 code require reprogramming the PCM?

Reprogramming is rarely necessary, but if all components test fine and the code persists, the PCM may need to be updated or replaced.

10. How much does it cost to repair the P1464 code on a 2003 Ford F150?

The cost depends on the cause. Simple fixes like replacing switches or relays may cost $50-$150, while more complex repairs involving the PCM could exceed $500.