AutoCodes – Ford – P0605 1997 Ford F150

P0605 1997 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 1997 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 3,256

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 1997 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 1997 Ford F150 - PCM Read Only Memory Error - AutoCodes.com — P0605 1997 Ford F150 Code - PCM Read Only Memory Error

What does this mean?

What are the Possible Causes of the DTC P0605 1997 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 1997 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 1997 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 1997 Ford F150 Code

1. What does the OBDII code P0605 mean on a 1997 Ford F150?

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

2. What are the common symptoms of P0605 on a 1997 Ford F150?

Symptoms may include the Check Engine Light being on, poor engine performance, stalling, difficulty starting, or the engine not starting at all.

3. What causes the P0605 code on a 1997 Ford F150?

Common causes include a faulty PCM, software corruption, a damaged PCM wiring harness, or electrical issues such as short circuits or poor grounds.

4. Can I drive my 1997 Ford F150 with a P0605 code?

Driving with a P0605 code is not recommended, as it may lead to erratic engine performance or cause the vehicle to stall unexpectedly.

5. How do you diagnose a P0605 code on a 1997 Ford F150?

Diagnosis involves checking the PCM for physical damage, inspecting wiring and connectors for corrosion or shorts, and verifying proper voltage supply to the PCM.

6. Is replacing the PCM the only solution for a P0605 code?

Not always. First, inspect wiring and connections for damage. If the issue persists and the PCM fails diagnostic tests, replacement may be necessary.

7. How much does it cost to fix a P0605 code on a 1997 Ford F150?

Repair costs vary, but PCM replacement typically ranges from $300 to $1,200, including parts and labor. Diagnosing and repairing wiring issues may cost less.

8. Can a weak battery cause a P0605 code on a 1997 Ford F150?

Yes, a weak or failing battery can lead to voltage irregularities that may trigger the P0605 code. Check and replace the battery if necessary.

9. Do I need to reprogram the PCM if I replace it on a 1997 Ford F150?

Yes, a replacement PCM typically requires reprogramming with the vehicle's specific calibration data to function correctly.

10. Can a P0605 code clear itself on a 1997 Ford F150?

No, the code will remain stored until the underlying issue is resolved and the PCM is reset using a scan tool or by disconnecting the battery temporarily.