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Home >> Lincoln >> 2011 >> MKS EcoBoost >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Instrument Cluster Illumination And Panel Illumination >> Diagnosis And Testing >> Instrument Cluster and Panel Illumination >> Pinpoint Tests >> Pinpoint Test E: One Or More Control Switch Illumination is Inoperative >> Normal Operation

Normal Operation

When the delayed accessory relay is energized, voltage is provided to the non-dimmable switches.

Based on input received from the instrument panel dimmer switch, the Smart Junction Box (SJB) sends a Pulse Width Modulated (PWM) voltage to the hardwired dimmable switches.

This pinpoint test is intended to diagnose the following: 

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