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DTC B1025, B1035, B1045, OR B1055 Circuit Description When the radio is powered up, the radio supplies low level audio signals to the speakers. If the vehicle is Conditions for Running the DTC The test is performed when the radio switches from OFF to ON. The radio will continue to test for the fault Conditions for Setting the DTC The radio sets a current status for this DTC when a short to ground or voltage is detected on any of the speaker Action Taken When the DTC Sets No sound is present from one or more of the speakers. Conditions for Clearing the DTC The fault condition is not present for 5 seconds. Test Description The numbers below refer to the step numbers on the diagnostic table. 2: This step verifies that the DTC is still present. 3: This step isolates the fault condition. DTC B1025, B1035, B1045, or B1055 B1025, B1035, B1045, or B1055 DTC B1025, B1035, B1045, or B1055 Radio B1235 DTC B1235 Radio B2815 DTC B2815 BCM Step Action Yes No Schematic Reference:Radio/Audio System Schematics (non Class 2 Amplifier) or Radio/Audio 1 Did you perform the Diagnostic System Check - Go to Step 2 Go to Diagnostic System Check - Entertainment System 1. Install a scan tool. 2. Turn ON the ignition, with the engine OFF.
2004 Hummer H2 2004 ACCESSORIES & EQUIPMENT Entertainment - Hummer H2
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