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 DIAGNOSISWIPER AND WASHER SYSTEMSTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSLIGHTING CONTROL SENSOR (RAIN SENSOR) INSPECTION
2009 Mitsubishi Lancer L4-2.4L (4B12)
Lighting Control Sensor (Rain Sensor) Inspection
2009 Mitsubishi Lancer L4-2.4L (4B12)SECTION Lighting Control Sensor (Rain Sensor) Inspection
LIGHTING CONTROL SENSOR (RAIN SENSOR) INSPECTION
Turn the ignition switch to the "ON" position with the windshield glass dried, and then turn the wiper switch to the "AUTO" position. Apply water to the upper part of windshield glass installing the lighting control sensor and check that the windshield wiper works. If not, perform troubleshooting.
Turn the ignition switch to the "ON" position with the windshield glass dried, and then turn the wiper switch to the "AUTO" position. Apply water to the upper part of windshield glass installing the lighting control sensor and check that the windshield wiper works. If not, perform troubleshooting.
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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.