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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 105 (Instrument Panel System Displays, Gauges And Console) >> Diagnostic Information and Procedures >> DTC B3620 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

The HUD monitors the switch signal circuits in order to perform various functions. The HUD switch contains 3 active low momentary switches, and a variable resistor. The HUD detects a switch activation when the signal circuit is active.

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