Mike's Workshop Manuals
: Service manuals for every vehicle
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Pontiac
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2008
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Grand Prix Base
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Repair and Diagnosis
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Diagnostic Information and Procedures
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DTC B1780
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Circuit/System Testing
Circuit/System Testing
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With a scan tool clear the Radio Theft Information.
If the DTC resets, replace the radio.