Engine-CodesFord – P0606 1997 Ford F150

P0606 1997 Ford F150 Code - Powertrain Control Module Internal Communication Error

Quick Answer

The P0606 diagnostic trouble code (DTC) for a 1997 Ford F150 indicates a Powertrain Control Module (PCM) Internal Communication Error. Common causes include Faulty wiring or connections within the PCM, Corrosion or damage to PCM connectors, Malfunctioning PCM. 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
P0606 1997 Ford F150 indicates Powertrain Control Module Internal Communication Error.
Common causes
Common causes include Faulty wiring or connections within the PCM, Corrosion or damage to PCM connectors, Malfunctioning PCM.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0606 1997 Ford F150 Description

The P0606 diagnostic trouble code (DTC) for a 1997 Ford F150 indicates a Powertrain Control Module (PCM) Internal Communication Error. The PCM is essentially the brain of the vehicle, responsible for controlling and coordinating various engine functions. When this code is triggered, it means that there is a communication error within the PCM itself, affecting its ability to properly function and communicate with other vehicle systems.

OBDII Code P0606 1997 Ford F150 - Powertrain Control Module Internal Communication Error
P0606 1997 Ford F150 Code - Powertrain Control Module Internal Communication Error

Common Causes of P0606 1997 Ford F150

  1. Faulty wiring or connections within the PCM
  2. Corrosion or damage to PCM connectors
  3. Malfunctioning PCM
  4. Issues with other related components such as the transmission control module
  5. Electrical interference or short circuits

Symptoms of P0606 1997 Ford F150

  1. Engine misfires or runs rough
  2. Difficulty starting the vehicle
  3. Reduced fuel efficiency
  4. Illumination of the Check Engine Light
  5. Loss of power or acceleration

How to Fix P0606 1997 Ford F150

  1. Begin by inspecting the wiring and connections to the PCM for any signs of damage or corrosion. Repair or replace any damaged wiring or connectors.
  2. Use a diagnostic scan tool to check for specific error codes and troubleshoot the communication error within the PCM.
  3. If necessary, replace the PCM with a new or remanufactured unit. Ensure that the replacement PCM is compatible with the vehicle's make and model.
  4. Clear the error codes and reset the PCM to allow for proper communication and functioning.
  5. Test drive the vehicle to ensure that the communication error has been resolved and that the vehicle is performing optimally.

Cost to Fix P0606 1997 Ford F150

The typical repair costs for addressing a P0606 code on a 1997 Ford F150 can vary depending on the specific cause of the issue and the cost of replacement parts. In general, the cost of replacing a PCM can range from $500 to $1000, including parts and labor. Additional costs may be incurred for diagnostic testing, wiring repairs, or other related components that may need attention. It is advisable to consult with a trusted auto repair shop or dealership for a more accurate estimate based on your vehicle's specific needs. Keep in mind that labor rates can vary based on location and the type of repair facility.

Tech Notes for P0606 1997 Ford F150

Check the Powertrain Control Module (PCM) fuse, if the fuse is OK, try erasing the code first and if the code comes back you may have to reprogram or replace the PCM.

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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 P0606 1997 Ford F150 Code

1. What does the OBDII code P0606 mean for a 1997 Ford F150?

P0606 indicates a Powertrain Control Module (PCM) Internal Communication Error, meaning the PCM has detected a fault within itself.

2. What are the common symptoms of code P0606 in a 1997 Ford F150?

Symptoms may include the check engine light turning on, poor engine performance, stalling, difficulty starting, or the vehicle going into limp mode.

3. What causes the P0606 code to appear in a 1997 Ford F150?

Common causes include a failed PCM, electrical issues like corroded or damaged wiring, or a poor ground connection.

4. Can a bad battery cause code P0606 in a 1997 Ford F150?

Yes, a weak or failing battery can cause voltage irregularities that may trigger this code by disrupting PCM operation.

5. How do you diagnose the P0606 code on a 1997 Ford F150?

Diagnose by checking the battery voltage, inspecting PCM wiring and connectors for damage or corrosion, and testing the PCM for proper functionality using a diagnostic tool.

6. Can the P0606 code be cleared without fixing the issue?

The code can be cleared temporarily, but it will likely return if the underlying problem is not resolved.

7. How much does it cost to replace the PCM on a 1997 Ford F150?

Replacing the PCM can cost between $500 and $1,200, including parts and labor, depending on whether a new or refurbished unit is used.

8. Is the PCM always the problem when code P0606 appears?

No, the issue may involve wiring, connectors, or other electrical faults rather than the PCM itself. Proper diagnosis is essential.

9. Can I drive my 1997 Ford F150 with a P0606 code?

Driving with this code is not recommended, as it may result in reduced performance or further damage to the vehicle.

10. What should I do first to fix the P0606 code on my 1997 Ford F150?

Start by checking the battery and charging system, inspecting PCM wiring and grounds, and ensuring all connections are secure and free of corrosion.

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