P0606High urgency
ECM/PCM Processor Fault
Network · ECM/PCM
⛔ Fix immediately — engine computer is failing.
What this means
The ECM/PCM processor has failed its internal self-test. The engine may run erratically or not at all.
Likely causes
- Failed ECM/PCM internal processorMost common
- Water or heat damage to ECMCommon
- Power supply issue to ECMCommon
Estimated repair cost
ECM replacement and programming$500 – $2,000
ECM remanufactured unit$200 – $800
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Frequently asked questions
What does P0606 mean?
The ECM/PCM processor has failed its internal self-test. The engine may run erratically or not at all.
Is P0606 serious?
Fix immediately — engine computer is failing.
How much does it cost to fix P0606?
Repair costs for P0606 range from $500 – $2,000 depending on the root cause and your vehicle.
Can I drive with P0606?
No — this code indicates a serious issue. Stop driving and have the vehicle inspected immediately.