AutoCodes – Ford – P0605 Ford

P0605 Ford Code - Internal Control Module Read Only Memory Error

Quick Answer

The Powertrain Control Module (PCM) continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. Common causes include Powertrain Control Module (PCM) programming error, Physically damaged Powertrain Control Module, Faulty Powertrain Control Module. 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
P0605 Ford indicates Internal Control Module Read Only Memory Error.
Common causes
Common causes include Powertrain Control Module (PCM) programming error, Physically damaged Powertrain Control Module, Faulty Powertrain Control Module.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 67,098
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jul 30, 2020
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Code P0605 Ford Description

The Powertrain Control Module (PCM) continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. This self-check insures that the Powertrain Control Module is functioning properly. The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module Read Only Memory (ROM) has been corrupted.
OBDII Code P0605 Ford - Internal Control Module Read Only Memory Error - AutoCodes.com
P0605 Ford Code - Internal Control Module Read Only Memory Error

What are the Possible Causes of the DTC P0605 Ford?

  • Powertrain Control Module (PCM) programming error
  • Physically damaged Powertrain Control Module
  • Faulty Powertrain Control Module
  • Powertrain Control Module harness is open or shorted
  • Powertrain Control Module circuit poor electrical connection

How to Fix the DTC P0605 Ford?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0605 Ford 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 P0605 Ford code?

Need more information on how to fix the P0605 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0605 Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford Models

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 P0605 Ford Code

1. What are the common symptoms of OBDII code P0605 Ford (Internal Control Module Read Only Memory Error)?

- Common symptoms include illuminated Check Engine Light, vehicle stalling, poor engine performance, and difficulty starting the engine.

2. What can cause the OBDII code P0605 Ford to appear?

- The code is typically triggered by issues with the vehicle's Engine Control Module (ECM), such as corrupt software, faulty connections, or a damaged ECM.

3. How serious is the Internal Control Module Read Only Memory Error (P0605) in Ford vehicles?

- This code should be addressed promptly as it can lead to drivability issues and potential engine performance problems if left unresolved.

4. Can a DIY enthusiast repair OBDII code P0605 Ford at home?

- While it is possible to address some underlying causes like loose connections, repairing or reprogramming the ECM usually requires specialized equipment and expertise, best left to professionals.

5. How can I diagnose the Internal Control Module Read Only Memory Error (P0605) in my Ford vehicle?

- A proper diagnosis involves using an OBDII scanner to retrieve the code, checking all connections to the ECM, and potentially inspecting the ECM for physical damage.

6. Is it safe to continue driving with the P0605 Ford trouble code present?

- It is not recommended to drive with this code active, as it can lead to unpredictable engine behavior and potentially leave you stranded.

7. What are the typical repair options for fixing OBDII code P0605 in Ford vehicles?

- Repair options may include reprogramming the ECM, replacing the ECM if it's faulty, checking and repairing any damaged wiring, or addressing any underlying issues causing the code.

8. How much does it cost to repair the Internal Control Module Read Only Memory Error (P0605) in a Ford vehicle?

- The cost of repair can vary depending on the root cause of the issue, with estimates ranging from a few hundred to over a thousand dollars including parts and labor.

9. Can a weak car battery be a potential cause of the P0605 Ford trouble code?

- Yes, a weak or failing car battery can sometimes cause voltage fluctuations that may lead to the ECM error code P0605.

10. Are there any preventive measures to avoid encountering the OBDII code P0605 Ford in the future?

- Regularly maintaining your vehicle, ensuring a stable electrical system, and addressing any engine performance issues promptly can help prevent the recurrence of this error code.

Discuss the causes and fixes for P0605 Ford OBDII Code

  • i just bought a 2010 forcus. The persone before me had an issue with the "my key" set up witch the dealer fixed and then the lite comes on for this ..I JUST deleted it now im wait to see if it comeone...ill comment in the future about it

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