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Home >> Toyota >> 2012 >> Prius Two >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 138 (Auto Headlight Beam Level Control System (Plug-In) (Diagnostic Codes & Circuit Tests)) >> Automatic Headlight Beam Level Control System >> Circuit Tests >> Headlight Signal Circuit >> Description
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Headlight Signal Circuit: Description

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The headlight leveling ECU assembly detects the status of the low beam headlights.

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