AutoCodes – Ford – P1464 1997 Ford F150

P1464 1997 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 1997 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 4,072

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
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Code P1464 1997 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 1997 Ford F150 - Air Conditioning Demand Out Of Self Test Range - AutoCodes.com — P1464 1997 Ford F150 Code - Air Conditioning Demand Out Of Self Test Range

What does this mean?

What are the Possible Causes of the DTC P1464 1997 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 1997 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 1997 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 1997 Ford F150 Code

1. What does the OBDII code P1464 mean on a 1997 Ford F150?

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

2. What symptoms might I notice if my 1997 Ford F150 shows a P1464 code?

You may notice that the air conditioning system is not functioning properly or not cooling effectively. Additionally, the check engine light might be illuminated.

3. What can cause a P1464 code to appear on a 1997 Ford F150?

Possible causes include issues with the air conditioning control circuit, such as a faulty air conditioning pressure switch, wiring issues, or a problem with the air conditioning control unit itself.

4. How can I diagnose the P1464 code in my 1997 Ford F150?

Diagnosis should start with a visual inspection of the air conditioning system's wiring and connectors for damage or disconnections. Following that, testing the functionality of the air conditioning pressure switch and checking for proper voltage and ground at the air conditioning control unit is recommended.

5. What are the steps to fix the P1464 code on a 1997 Ford F150?

Repairs might involve replacing a faulty air conditioning pressure switch, repairing any damaged wires or connectors, or potentially replacing the air conditioning control unit if it is found to be defective.

6. Is it safe to drive my 1997 Ford F150 with the P1464 code?

While it is generally safe to drive with this code, the air conditioning may not work properly, which can be uncomfortable in hot weather. If the underlying issue affects other systems, further complications could arise.

7. Could a P1464 code affect the fuel economy of my 1997 Ford F150?

Yes, if the air conditioning system is malfunctioning or working inefficiently due to this issue, it could lead to increased fuel consumption as the system may strain to maintain cooling performance.

8. What tools are needed to diagnose the P1464 code on a 1997 Ford F150?

A digital multimeter and a scan tool capable of reading Ford-specific codes and data are essential for diagnosing this issue accurately. Additionally, an air conditioning pressure gauge set may be needed to test system pressures.

9. Can ignoring a P1464 code lead to other problems in a 1997 Ford F150?

Ignoring this code might not immediately lead to severe problems, but prolonged malfunction of the air conditioning system can cause components to wear out faster or lead to overheating of the air conditioning compressor, potentially requiring more expensive repairs later.