AutoCodes – Ford – P1464 2000 Ford F150

P1464 2000 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 2000 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 4,868

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 2000 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 2000 Ford F150 - Air Conditioning Demand Out Of Self Test Range - AutoCodes.com — P1464 2000 Ford F150 Code - Air Conditioning Demand Out Of Self Test Range

What does this mean?

What are the Possible Causes of the DTC P1464 2000 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 2000 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 2000 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 2000 Ford F150 Code

1. What does the OBDII code P1464 mean on a 2000 Ford F150?

P1464 indicates that the air conditioning demand signal is out of the expected range during the self-test, often due to an electrical issue or a faulty component in the A/C system.

2. What are common symptoms of code P1464 in a 2000 Ford F150?

Common symptoms include the air conditioning not functioning properly, inconsistent cooling, or the A/C system failing to engage.

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

This code is typically caused by a faulty A/C pressure switch, a damaged A/C clutch relay, wiring or connector issues, or a malfunctioning PCM.

4. Can I still drive my 2000 Ford F150 with a P1464 code?

Yes, you can drive the truck, but the air conditioning system may not work properly, and ignoring the issue could lead to further damage over time.

5. How do I diagnose the P1464 code on a 2000 Ford F150?

Start by checking the A/C pressure sensor, wiring, and connectors for damage. Use a multimeter to test for proper voltage and continuity in the circuit.

6. How can I fix the P1464 code on my Ford F150?

Possible fixes include repairing or replacing damaged wiring, replacing a faulty A/C pressure switch, inspecting the A/C clutch relay, or recalibrating the PCM if necessary.

7. Could a low refrigerant level cause the P1464 code?

Yes, low refrigerant levels can cause abnormal A/C pressure readings, which may trigger the P1464 code.

8. Does the P1464 code mean the PCM is failing?

Not necessarily. While the PCM monitors the A/C system, the issue is often related to sensors, wiring, or components in the A/C system rather than the PCM itself.

9. How much does it cost to repair the P1464 code on a 2000 Ford F150?

Repair costs can vary, but diagnosing and fixing wiring or replacing a faulty A/C pressure switch typically ranges from $100 to $300, depending on labor rates and parts.

10. Can I clear the P1464 code without fixing the issue?

You can clear the code using an OBDII scanner, but it will likely return if the underlying issue is not resolved.