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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1819 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B2474 >> Circuit/System Verification
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Circuit/System Verification

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  1. Ignition OFF, allow the navigation display to cool if the ambient temperature inside the vehicle is excessive and the radio is hot to the touch. Verify the navigation display is cool and the DTC has cleared and gone to history.
  2. Ignition ON, with a scan tool, clear all DTCs and operate the audio/navigation system within the Conditions for Running the DTC. Verify the DTC does not reset.
    • If the DTC resets, replace the radio.
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