2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 214Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 214

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TROUBLESHOOTING AND DIAGNOSTICS
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DiagnosisCorrection Complete
1 Remove Malfunction Indicator Lamp (MIL)2 Reinstall rubber plug in engine harness bullet connector3 R