AutoCodes – Ford – P0605 2000 Ford F150

P0605 2000 Ford F150 Code - PCM 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 2000 Ford F150 indicates PCM 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.

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Code Popularity 3,151

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 Jul 30, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0605 2000 Ford F150 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 2000 Ford F150 - PCM Read Only Memory Error - AutoCodes.com — P0605 2000 Ford F150 Code - PCM Read Only Memory Error

What does this mean?

What are the Possible Causes of the DTC P0605 2000 Ford F150?

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 2000 Ford F150?

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 does this mean?

Code Tech Notes

Try clearing the code before replacing any parts. Reprogram the Vehicle Identification (VID) block (use as built data). Check for other Diagnostic Trouble Code (DTC) or drive symptoms for further action. Make sure to check for aftermarket performance products before installing a new Powertrain Control Module (PCM).

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0605 2000 Ford F150 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.

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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 P0605 2000 Ford F150 Code

1. What does the OBDII code P0605 mean on a 2000 Ford F150?

P0605 indicates a "PCM Read Only Memory (ROM) Error," meaning the Powertrain Control Module (PCM) has detected an internal memory issue.

2. What are the common symptoms of code P0605 on a 2000 Ford F150?

Symptoms may include the check engine light illuminating, engine stalling, poor performance, transmission shifting issues, or the vehicle failing to start.

3. What causes the P0605 code on a 2000 Ford F150?

Possible causes include a faulty PCM, software corruption, voltage issues like a weak battery or alternator problems, or damaged wiring to the PCM.

4. Can a weak battery trigger the P0605 code on a 2000 Ford F150?

Yes, a weak or failing battery can cause voltage fluctuations that might corrupt the PCMâ€™s memory and trigger the code.

5. Is it safe to drive a 2000 Ford F150 with a P0605 code?

Itâ€™s not recommended, as the PCM controls critical engine and transmission functions. Continuing to drive may worsen performance issues or cause additional damage.

6. How do you diagnose a P0605 code on a 2000 Ford F150?

Diagnosis involves checking the battery and charging system, inspecting PCM wiring and connectors, and testing the PCM for faults using advanced diagnostic tools.

7. Can the P0605 code be fixed without replacing the PCM?

In some cases, flashing or reprogramming the PCM can resolve the issue if itâ€™s caused by software corruption. However, a PCM replacement may be necessary if the hardware is faulty.

8. How much does it cost to fix a P0605 code on a 2000 Ford F150?

Repair costs can range from $150 to over $1,000, depending on whether the PCM needs reprogramming or replacement. Labor costs and diagnostic fees may vary.

9. Does a P0605 code mean the PCM is completely damaged?

Not necessarily. It could be a software issue or a temporary glitch. Proper diagnosis is required to determine if the PCM is repairable or needs replacement.

10. Can a P0605 code clear itself on a 2000 Ford F150?

Itâ€™s unlikely. The code typically remains until the underlying issue is fixed, though clearing the code temporarily may be possible with a scan tool.