AutoCodes – Ford – P1464 2008 Ford Fusion

P1464 2008 Ford Fusion 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 2008 Ford Fusion 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 3,083

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
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Code P1464 2008 Ford Fusion 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 2008 Ford Fusion - Air Conditioning Demand Out Of Self Test Range - AutoCodes.com — P1464 2008 Ford Fusion Code - Air Conditioning Demand Out Of Self Test Range

What does this mean?

What are the Possible Causes of the DTC P1464 2008 Ford Fusion?

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 2008 Ford Fusion?

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 2008 Ford Fusion 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.

Need more information about the P1464 2008 Ford Fusion code?

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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 2008 Ford Fusion Code

1. What are the common symptoms of OBDII code P1464 in a 2008 Ford Fusion?

- Common symptoms include the air conditioning system failing to function properly, intermittent cooling, or the AC compressor not engaging.

2. What does the OBDII code P1464 "Air Conditioning Demand Out Of Self Test Range" mean for a 2008 Ford Fusion?

- This code indicates that the AC demand signal sent to the powertrain control module (PCM) is outside the self-test range, potentially causing issues with the air conditioning system.

3. What are some possible causes of OBDII code P1464 in a 2008 Ford Fusion?

- Potential causes include a faulty AC pressure transducer, wiring or connector issues in the AC system, a malfunctioning PCM, or a problem with the AC compressor clutch.

4. How can I diagnose OBDII code P1464 in my 2008 Ford Fusion?

- Diagnosing this code may involve checking the AC pressure transducer, inspecting the wiring and connectors in the AC system, testing the AC compressor clutch, and scanning the PCM for any related trouble codes.

5. Can I continue driving my 2008 Ford Fusion with OBDII code P1464?

- It is not recommended to continue driving with this code present, as it may lead to further AC system issues and potential discomfort while driving in hot weather.

6. How can I repair OBDII code P1464 in my 2008 Ford Fusion?

- Repairing this code may involve replacing the faulty AC pressure transducer, repairing any damaged wiring or connectors, addressing PCM issues, or fixing the AC compressor clutch as needed.

7. Is it possible to reset OBDII code P1464 in a 2008 Ford Fusion without repairs?

- While clearing the code may temporarily turn off the check engine light, it is crucial to address the root cause of the issue to prevent future occurrences and ensure the proper functioning of the air conditioning system.

8. Will OBDII code P1464 affect the overall performance of my 2008 Ford Fusion?

- While this code specifically relates to the air conditioning system, unresolved issues could impact the overall performance and comfort of your vehicle, especially in hot weather conditions.

9. Can a DIY enthusiast fix OBDII code P1464 in a 2008 Ford Fusion?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this code themselves, but professional assistance may be necessary for more complex issues.

10. How can I prevent OBDII code P1464 from occurring in my 2008 Ford Fusion in the future?

- Regular maintenance of the AC system, checking for leaks, ensuring proper refrigerant levels, and addressing any warning signs promptly can help prevent the recurrence of this code.