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Code P144F

Quick reference

P144F at a glance

Plain-language meaning
This code means there is a problem with the car's fan safety switch. It's like a switch that helps keep the car cool, and it's not working right.
Urgency
High – Addressing this issue promptly is important to prevent engine damage due to overheating.
Difficulty
Moderate
System
Circuit/Performance Issue
Tools mentioned
Multimeter, Relay tester, Basic hand tools

This summary uses the existing diagnostic information shown in full below.

Laymans terms

This code means there is a problem with the car's fan safety switch. It's like a switch that helps keep the car cool, and it's not working right.

Explanation

The P144F code indicates an issue with the performance of the fan safety relay circuit, which is responsible for controlling the cooling fan in the vehicle.

Technical description

The fan safety relay circuit is responsible for activating the cooling fan to prevent the engine from overheating. This code suggests that the relay circuit is not operating within the expected range, which could lead to cooling issues or fan failure.

Symptoms

• Engine overheating

• Cooling fan not operating

• Check Engine Light illuminated

Common Causes

• Faulty fan safety relay

• Damaged wiring or connectors

• Defective cooling fan motor

Glossary

Relay: An electrical device that opens or closes a circuit under the control of another electrical circuit.

Cooling Fan: A fan that helps keep the engine cool by drawing air through the radiator.

Diagnosis steps

• Check for any blown fuses related to the cooling fan circuit.

• Inspect the fan relay for signs of damage or wear.

• Test the wiring and connectors for continuity and proper connection.

Repair procedures

• Replace the faulty fan safety relay.

• Repair or replace damaged wiring or connectors.

• Replace the cooling fan motor if found defective.

Tools required

• Multimeter

• Relay tester

• Basic hand tools

Estimated repair cost

$100 - $300

Difficulty level

Moderate

Commonly affected vehicles

• Ford Focus

• Chevrolet Malibu

• Honda Accord

Preventive measures

• Regularly inspect the cooling system components.

• Ensure the fan relay is functioning properly.

• Keep the engine coolant at the recommended level.

Error code type

Circuit/Performance Issue

User experience recommendations

• Do not ignore this code as it can lead to engine overheating.

• Seek professional assistance if unsure about the repair.

Warranty information

Check with the vehicle manufacturer for warranty coverage on electrical components.

Historical data

This code has been associated with vehicles experiencing cooling system issues, particularly in older models with high mileage.

Urgency level

High – Addressing this issue promptly is important to prevent engine damage due to overheating.

Testing conditions

• Engine running

• Cooling system under load

Component location

The fan safety relay is typically located in the engine compartment fuse box.

FAQs

Q: Can I drive with a P144F code?
A: It's not recommended to drive with this code as it can lead to engine overheating.

Q: How can I prevent this issue?
A: Regular maintenance of the cooling system and checking the fan relay can help prevent this issue.

Optional diagnostic gear

Tools that may help diagnose P144F

FOXWELL NT301 diagnostic tool illustration

Budget · Enhanced code reader

FOXWELL NT301

A wired color-screen reader with readiness hotkeys, live data, code definitions, and data logging.

A dependable first-pass scanner for verifying the code and checking live data or readiness monitors.

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Klein Tools MM325 diagnostic tool illustration

Universal · Digital multimeter

Klein Tools MM325

A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.

Helpful for voltage, continuity, and basic electrical checks while narrowing down the fault.

View on Amazon
TEKTON 3/8" Socket and Ratchet Set diagnostic tool illustration

Universal · Socket set

TEKTON 3/8" Socket and Ratchet Set

A practical metric and SAE socket set for many diagnostic teardowns and component replacements.

Useful for common under-hood access and removal work during diagnosis or repair.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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