AutoCodes – Generic – P145D

P145D Code - Fan System Component Error 'B'

Quick Answer

The Powertrain Control Module (PCM) monitors the Fan System Component. Common causes include Faulty Fan System Component, Fan System Component harness is open or shorted, Fan System Component circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P145D indicates Fan System Component Error 'B'.
Common causes: Common causes include Faulty Fan System Component, Fan System Component harness is open or shorted, Fan System Component circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 11,855

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P145D Description

The Powertrain Control Module (PCM) monitors the Fan System Component. The PCM sets the OBDII code when the Fan System Component is not to factory specifications.

OBDII Code P145D - Fan System Component Error 'B' - AutoCodes.com — P145D Code - Fan System Component Error 'B'

What does this mean?

What are the Possible Causes of the DTC P145D?

Faulty Fan System Component
Fan System Component harness is open or shorted
Fan System Component circuit poor electrical connection

How to Fix the DTC P145D?

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 P145D 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 P145D code?

Need more information on how to fix the P145D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P145D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P145D Acura — Evaporative Emission System Purge Flow Malfunction at Turbocharging
P145D Ford — Fan System Component Error 'B'
P145D Honda — Evaporative Emission System Purge Flow Malfunction at Turbocharging
P145D Lincoln — Fan System Component Error 'B'
P145D Mercury — Fan System Component Error 'B'

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 P145D Code

1. What are the common symptoms of OBDII code P145D - Fan System Component Error 'B'?

- Common symptoms include overheating of the engine, fan not turning on, or the fan running continuously.

2. What are the possible causes of OBDII code P145D?

- The code P145D can be triggered by issues such as a faulty cooling fan, damaged fan relay, wiring problems, or a malfunctioning engine coolant temperature sensor.

3. How can I diagnose the OBDII code P145D at home?

- You can start by checking the cooling fan operation, inspecting the fan relay and associated wiring, and testing the engine coolant temperature sensor using an OBDII scanner.

4. Can I continue driving my vehicle with OBDII code P145D active?

- It is not recommended to drive your vehicle with the code P145D active, as it can lead to engine overheating and potential damage.

5. What are some repair tips for fixing OBDII code P145D?

- Repair tips include checking and replacing the cooling fan, testing and replacing the fan relay if necessary, inspecting and repairing any damaged wiring, and ensuring proper functioning of the engine coolant temperature sensor.

6. How much does it typically cost to repair OBDII code P145D?

- The cost of repairing OBDII code P145D can vary depending on the specific issue, but it may range from $100 to $500 or more, including parts and labor.

7. Can a DIY enthusiast fix OBDII code P145D at home?

- Depending on your mechanical skills and access to tools, a DIY enthusiast may be able to diagnose and repair OBDII code P145D at home. However, seeking professional help is recommended for complex issues.

8. Will resetting the OBDII system clear the P145D code?

- Resetting the OBDII system may temporarily clear the P145D code, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again.

9. Is OBDII code P145D a serious issue that needs immediate attention?

- Yes, OBDII code P145D should be addressed promptly to prevent engine overheating and potential damage. Ignoring the code can lead to more costly repairs in the future.

10. Are there any preventive maintenance measures to avoid OBDII code P145D in the future?

- Regularly inspecting and maintaining the cooling system, including the fan, relay, and associated components, can help prevent OBDII code P145D from occurring.