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Home >> Pontiac >> 2008 >> Grand Prix Base >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> DTC B0001 >> Circuit/System Description

Circuit/System Description

The navigation radio receives the vehicle speed signal from the powertrain control module (PCM) through a dedicated circuit shared with the instrument cluster.

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