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Inside Rearview Mirror Schematics Connector End View Reference Mirror Connector End Views Description and Operation Automatic Day-Night Mirror Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Circuit/System Verification 1. Ignition ON, headlamps ON, vehicle in PARK, cover the front light sensor with a towel or other suitable item. Shine a flashlight at the rear light sensor while observing the inside If the mirror face does not dim, refer to Inside Rearview Mirror Circuit Malfunction 2. Headlamps ON, park brake applied, cover the front light sensor with a towel or other suitable item. Shine a flashlight at the rear light sensor while observing the inside rearview If the mirror does not transition from dim to bright, refer to Reverse Input Malfunction 3. Remove the towel from the inside rearview mirror and remove the flashlight. Verify the inside rearview mirror face returns to its normal bright state. If the mirror face does not return to its normal state, test or replace the inside rearview Circuit/System Testing Inside Rearview Mirror Circuit Malfunction 1. Ignition OFF, disconnect the harness connector at the inside rearview mirror.
2007 Hummer H3 2007 ACCESSORIES & EQUIPMENT Mirrors - H3
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