P0606 Code - Engine Control Module Processor Failure

Quick Answer

The diagnostic trouble code P0606 indicates a failure in the Engine Control Module (ECM) processor. Common causes include Faulty ECM microprocessor, Corroded or damaged ECM connectors, Electrical interference or voltage spikes. 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 indicates Engine Control Module Processor Failure.

Common causes

Common causes include Faulty ECM microprocessor, Corroded or damaged ECM connectors, Electrical interference or voltage spikes.

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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
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Common Causes of P0606

Symptoms of P0606

How to Fix P0606

Cost to Fix P0606

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Code P0606 Information for Specific Makes

• P0606 Acura — ECM Processor Failure
• P0606 Buick — Control Module Processor Performance
• P0606 Cadillac — Control Module Processor Performance
• P0606 Chevrolet — Control Module Processor Performance
• P0606 Chrysler — Internal Control Processor
• P0606 Dodge — Internal Control Processor
• P0606 Ford — Powertrain Control Module Internal Communication Error
• P0606 GMC — Control Module Processor Performance
• P0606 Honda — ECM Processor Malfunction
• P0606 Infiniti — Engine Control Module Processor.
• P0606 Isuzu — Internal Processor Error
• P0606 Jeep — Internal Control Processor
• P0606 KIA — ECM Processor Error- Self Test Failed
• P0606 Lexus — Engine Control Module Processor Failure
• P0606 Lincoln — Powertrain Control Module Internal Communication Error
• P0606 Mazda — ECM Processor Failure
• P0606 Mercedes-Benz — ECM/PCM Processor Fault
• P0606 Mercury — Powertrain Control Module Internal Communication Error
• P0606 Mitsubishi — ECM Main Processor Malfunction
• P0606 Nissan — Engine Control Module Processor.
• P0606 Pontiac — Engine Control Module Internal Performance Error
• P0606 RAM — Internal Control Processor
• P0606 Saab — Control Module Internal Performance
• P0606 Saturn — Engine Control Module Internal Performance Error
• P0606 Scion — Engine Control Module Processor Failure
• P0606 Toyota — Engine Control Module Processor Failure
• P0606 Volkswagen — ECM Processor Failure

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 Code

1. What is OBDII code P0606?

OBDII code P0606 indicates a failure in the Engine Control Module (ECM) processor.

2. What are common symptoms of a P0606 code?

Common symptoms of a P0606 code include engine stalling, rough idling, poor acceleration, and the illumination of the Check Engine Light.

3. What are the possible causes of a P0606 code?

Possible causes of a P0606 code include a faulty ECM, a software issue within the ECM, damaged wiring or connectors, or a dead or weak vehicle battery.

4. How can I diagnose a P0606 code?

Diagnosing a P0606 code usually involves using an OBDII scanner to retrieve the code, checking for any other related codes, inspecting wiring and connectors for damage, and testing the ECM's power supply and ground connections.

5. Can I still drive my vehicle with a P0606 code?

It is not recommended to drive your vehicle with a P0606 code, as it can lead to further damage to the engine or other components. It is best to address the issue promptly.

6. How can I repair a P0606 code?

Repairing a P0606 code may involve reprogramming or replacing the ECM, repairing or replacing damaged wiring or connectors, and ensuring the vehicle's battery is in good condition.

7. Can I reset the P0606 code myself?

You can clear the P0606 code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

8. Will a P0606 code cause my vehicle to fail an emissions test?

A P0606 code can cause your vehicle to fail an emissions test, as it indicates a malfunction in the ECM, which can impact the vehicle's emissions control system.

9. How much does it cost to repair a P0606 code?

The cost to repair a P0606 code can vary depending on the underlying issue, but it may range from a few hundred to a few thousand dollars, especially if the ECM needs to be replaced.

10. How can I prevent a P0606 code from occurring?

To prevent a P0606 code, it is important to maintain your vehicle's battery in good condition, avoid jump-starting the vehicle frequently, and address any engine performance issues promptly to prevent strain on the ECM.