AutoCodes – Mercury – P1464 Mercury

P1464 Mercury 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 Mercury 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 4,830
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 14, 2020
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Code P1464 Mercury 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 Mercury - Air Conditioning Demand Out Of Self Test Range - AutoCodes.com
P1464 Mercury Code - Air Conditioning Demand Out Of Self Test Range

What are the Possible Causes of the DTC P1464 Mercury?

  • 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 Mercury?

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 Mercury 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 Mercury 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 Mercury Code

1. What are the common symptoms of OBDII code P1464 in a Mercury vehicle?

- Common symptoms include the air conditioning system not functioning properly, insufficient cooling, or the system not responding to climate control commands.

2. What causes the OBDII code P1464 in a Mercury vehicle?

- This code is typically triggered when the air conditioning demand is out of the self-test range, indicating a potential issue with the air conditioning control module or related components.

3. How can I diagnose the OBDII code P1464 in my Mercury car?

- Diagnosis involves checking the air conditioning system for any visible damage, testing the control module, and inspecting the wiring and connectors for any signs of wear or corrosion.

4. Can I continue driving my Mercury with OBDII code P1464?

- While the vehicle may still be operational, it is recommended to address the issue promptly to prevent further damage to the air conditioning system and ensure optimal performance.

5. What are some repair tips for fixing OBDII code P1464 in a Mercury vehicle?

- Repair tips may include resetting the system by disconnecting the battery, checking and replacing any damaged components, and clearing the code with an OBDII scanner after the repairs are completed.

6. Is it possible to reset the OBDII code P1464 in a Mercury without fixing the underlying issue?

- While you can clear the code temporarily, it is crucial to address the root cause of the problem to prevent the code from reoccurring and ensure the proper functioning of the air conditioning system.

7. Are there any recalls or technical service bulletins related to OBDII code P1464 in Mercury vehicles?

- It is recommended to check with your local Mercury dealership or visit the manufacturer's website to see if there are any relevant recalls or technical service bulletins addressing this specific OBDII code.

8. Can a DIY enthusiast fix OBDII code P1464 in a Mercury, or is professional help required?

- Depending on your level of automotive expertise and access to tools, some DIY enthusiasts may be able to diagnose and repair the issue themselves. However, if you are unsure, seeking professional help is advisable.

9. How much can I expect to pay for repairing OBDII code P1464 in a Mercury at a dealership or repair shop?

- The cost of repairs can vary depending on the extent of the issue and the labor rates in your area. It is recommended to obtain quotes from multiple sources to ensure a fair price.

10. Does fixing OBDII code P1464 in a Mercury require any specialized tools or equipment?

- While basic tools may be sufficient for some repairs, specialized diagnostic tools such as an OBDII scanner may be necessary to properly diagnose and clear the code in a Mercury vehicle.

Discuss the causes and fixes for P1464 Mercury OBDII Code

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