How much does it cost to fix P0606?

Typical repair cost is $500–$2,000.

P0606 — PCM/ECM Processor Fault

High Severity · Electrical

OBD-II code P0606 means your vehicle's ECU detected: PCM/ECM Processor Fault. Below: causes, step-by-step fixes, and repair cost — free, no signup needed.

High severity — do not ignore. Get a diagnosis promptly to avoid further engine damage.

Typical Repair Cost

$500–$2,000

Parts + labor, national average

Severity

High

Address as soon as possible

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Common Causes of P0606

PCM/ECM failure
Wiring issues to PCM
Power or ground supply issue to PCM

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How to Fix Code P0606

Check PCM power and ground connections first

Look for related codes

ECM replacement or remanufacture is often required ($300–$1,500)

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FAQ — Code P0606

What does OBD-II code P0606 mean?

P0606 means your vehicle's onboard computer detected: PCM/ECM Processor Fault. This is a high-severity code in the Electrical category.

How much does it cost to fix code P0606?

Typical repair cost for P0606 is $500–$2,000 including parts and labor. Costs vary by vehicle make, model, and location. A free scan at AutoZone or O'Reilly is a good first step.

Can I drive my car with code P0606?

Code P0606 is high severity. Avoid long drives until diagnosed — continued driving can cause additional engine damage.

What are the most common causes of P0606?

The most common causes are: PCM/ECM failure, Wiring issues to PCM, Power or ground supply issue to PCM. Always start with the cheapest diagnosis step before replacing parts.

Will code P0606 clear itself?

Code P0606 will clear itself after the underlying issue is fixed and the ECU completes several successful drive cycles. Clearing it without fixing the root cause only masks the problem temporarily.

Is P0606 showing on your car?

Enter your VIN for a free vehicle-specific report — recalls, specs, and market value. No signup required.

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Related Electrical Codes

P0560System Voltage Malfunction P0562System Voltage Low P0563System Voltage High P0627Fuel Pump Control Circuit Open

OBD-II code data is based on SAE J2012 standards and general repair industry data. Repair costs are national averages and vary by vehicle, location, and shop. Always consult a qualified mechanic for a diagnosis specific to your vehicle.