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P0605 2001 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 2001 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 3,111
How popular is this code, among other codes? Low
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Table of contents Created and updated by William Orellana on Jul 30, 2020
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Code P0605 2001 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 2001 Ford F150 - PCM Read Only Memory Error - AutoCodes.com
P0605 2001 Ford F150 Code - PCM Read Only Memory Error
What does this mean?

What are the Possible Causes of the DTC P0605 2001 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 2001 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 2001 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.

Need more information about the P0605 2001 Ford F150 code?

Need more information on how to fix the P0605 2001 Ford F150 code? Get Access to Factory Service Manuals

Need Help with the 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 P0605 2001 Ford F150 Code

1. What does the OBDII code P0605 mean on a 2001 Ford F150?

P0605 indicates a PCM (Powertrain Control Module) Read Only Memory (ROM) Error, meaning the PCM has detected a fault in its internal memory.

2. What are the common symptoms of a P0605 code on a 2001 Ford F150?

Symptoms can include a check engine light, poor engine performance, stalling, difficulty starting, or a complete failure to start.

3. What causes the P0605 code on a 2001 Ford F150?

Common causes include a faulty PCM, software corruption, electrical issues like wiring or connector problems, or damage from voltage spikes.

4. Can you drive a 2001 Ford F150 with a P0605 code?

It’s not recommended. While the truck may still run, the PCM may not function properly, leading to erratic behavior or further damage.

5. How do you diagnose a P0605 code on a 2001 Ford F150?

Diagnosis involves checking for other codes, inspecting PCM wiring and connectors, testing system voltage, and possibly reprogramming or replacing the PCM.

6. Can a bad battery cause a P0605 code?

Yes, a weak or faulty battery can cause voltage issues that may lead to PCM memory errors and trigger the P0605 code.

7. Does the PCM need to be replaced if the P0605 code appears?

Not always. The issue may be resolved by repairing wiring, clearing corrupted data, or reprogramming the PCM before considering replacement.

8. How much does it cost to fix a P0605 code on a 2001 Ford F150?

Costs can vary, but PCM reprogramming may cost $100-$200, while replacement can range from $500-$1,500 depending on parts and labor.

9. What tools are needed to troubleshoot a P0605 code?

You’ll need an OBDII scanner, a multimeter to check voltage and continuity, and possibly PCM programming tools.

10. Can you clear the P0605 code without fixing the problem?

You can clear the code with an OBDII scanner, but if the underlying issue isn’t resolved, the code will likely return.

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