Monday, April 19, 2021

2010 Cadillac CTS Sedan AWD V6-3.6L Page 331

2010 Cadillac CTS Sedan AWD V6-3.6L Page 331



Conditions for Running the DTC



* The ignition is in the RUN or ACC position.



* The system voltage is at least 9.5 volts and no more than 15.5 volts.



* All the above conditions are present for greater than 10 seconds.



Conditions for Setting the DTC



B1025 01, B1035 01, B1045 01, B1055 01, B1065 01, B1075 01, B1085 01, B1095 01, B1105 01, B1115 01



The amplifier detects a short to voltage on the audio (+) or audio (-) circuit.



B1025 02, B1035 02, B1045 02, B1055 02, B1065 02, B1075 02, B1085 02, B1095 02, B1105 02, B1115 02



The amplifier detects a short to ground on the audio (+) or audio (-) circuit.



B1025 04, B1035 04, B1045 04, B1055 04, B1065 04, B1085 04, B1095 04, B1105 04, B1115 04



The amplifier detects an open on the audio (+) or audio (-) circuit.



Action Taken When the DTC Sets



The amplifier disables the audio output to the speaker with the current fault.



Conditions for Clearing the DTC



* A current DTC clears when the conditions for setting the DTC are no longer present and the ignition has been cycled from OFF to ON.



* A history DTC clears after 50 malfunction-free ignition cycles.



Reference Information



Schematic Reference



Radio/Navigation System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Radio/Navigation System



Schematics)



Connector End View Reference



Component Connector End Views (See: Diagrams/Connector Views)



Description and Operation



Radio/Audio System Description and Operation (See: Accessories and Optional Equipment/Description and Operation/Radio/Audio System



Description and Operation)



Electrical Information Reference



* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Circuit Testing)



* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Connector Repairs/Connector Repairs)



* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/Circuit



Testing/Testing for Intermittent Conditions and Poor Connections)



* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/Wiring Repairs/Wiring Repairs)



Scan Tool Reference



Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information



Circuit/System Verification



Radio ON, adjust the fade and balance controls on the radio to test all channels individually. Each channel should produce clear and even sound.



Circuit/System Testing



1. Ignition OFF, disconnect the X1 and X2 connectors at the amplifier.



2. Radio ON, test for less than 1 volt between the appropriate signal circuit terminal listed below and ground:



* Left front tweeter speaker output (+) - terminal 4 X2



* Left front tweeter speaker output (-) - terminal 5 X2



* Right front tweeter speaker output (+) - terminal 7 X2



* Right front tweeter speaker output (-) - terminal 6 X2



* Left rear speaker output (+) - terminal 16 X2



* Left rear speaker output (-) - terminal 8 X2



* Right rear speaker output (+) - terminal 15 X2

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