Mike's Workshop Manuals
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2009
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CTS Base, 3.6 7, AWD
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Diagnostic Information and Procedures
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DTC B2462 (Communication Interface Module)
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Conditions for Running the DTC (Communication Interface Module)
Conditions for Running the DTC (Communication Interface Module)
Ignition is in the RUN or ACC position.
System voltage is between 9.5 volts and 15.5 volts.
The above conditions are present for greater than 1 second.