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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Idle speed lower than expected
The engine idles below the expected speed.
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Idle speed higher than expected
The engine idles higher than the ECM expects.
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Idle air control circuit low input
The idle air control circuit reads too low.
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Idle air control circuit high input
The idle air control circuit reads too high.
Codes are matched against published records; partial and keyword matches are shown after exact matches.
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