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Home >> Chevrolet >> 2006 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 439 (Lighting System) >> Diagnostic Information and Procedures >> Interior Backlighting Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2007 Saturn Sky. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, observe the scan tool IP dimmer switch parameter while activating the switch from min to max. The voltage reading should change as the switch is cycled between the min and max settings.

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