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Code

P0607

ECM

ECM performance

The engine computer has a performance fault.

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Most likely causes

Failed ECM
Software fault
Low voltage

Symptoms you may notice

Check engine light
Limp mode

Checks to run

Verify battery/charging
Update or replace ECM

Tools you may need

OBD-II scanner

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in ECM

Internal control module memory checksum error

ECM processor fault

ECM power relay control circuit malfunction

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