Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMITSUBISHI2009LANCER L4-2.4L (4B12)REPAIR AND DIAGNOSISDIAGRAMSELECTRICAL DIAGRAMSKEYLESS ENTRYKEYLESS OPERATING SYSTEM (KOS)
2009 Mitsubishi Lancer L4-2.4L (4B12)
Keyless Operating System (KOS)
2009 Mitsubishi Lancer L4-2.4L (4B12)SECTION Keyless Operating System (KOS)
Keyless Operating System (KOS) (Part 1):
Keyless Operating System (KOS) (Part 2):
Keyless Operating System (KOS) (Part 3):
Keyless Operating System (KOS) (Part 4):
Keyless Operating System (KOS) (Part 5):
Keyless Operating System (KOS) (Part 6):
Keyless Operating System (KOS) (Part 7):
Keyless Operating System (KOS) (Part 8):
Keyless Operating System (KOS) (Part 9):
Keyless Operating System (KOS) (Part 10):
Connector/Component Locations: The locations of connectors and components referred to within these diagrams can be found via the connector number at Vehicle Connector Locations. Connector Locations
Splice Locations: The locations of Splices referred to within these diagrams can be found via the splice number at Vehicle Splice Locations. Splice Locations
Ground Locations: The locations of grounds referred to within these diagrams can be found via the ground number at Vehicle Ground Locations. Ground Locations
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.