Code database
Search OBD-II codes
Filter by family, system, severity, engine, fuel or manufacturer. Every row links to the full diagnostic page with causes, safety advice, checks and a guided workflow.
4 codes found with 1 filter applied
Showing 1–4 of 4
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Internal control module memory checksum error
The engine computer detected an internal memory fault.
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ECM processor fault
The engine computer detected an internal processor fault.
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ECM performance
The engine computer has a performance fault.
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ECM power relay control circuit malfunction
The ECM power relay circuit has a fault.
Codes are matched against published records; partial and keyword matches are shown after exact matches.
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