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tony66Sep 23, 2025
What to do if Directed Automobile Accessories shows 'ISO 1 not detected'?
- KKristine MillerSep 23, 2025
If the Directed Automobile Accessories module shows 'ISO 1 not detected', the Yellow/Black wire did not detect the expected signal. Check the connections, referring to “Installation (wiring diagrams & vehicle wiring reference charts)”.