Thursday, May 20, 2021

2010 Cadillac CTS Sedan AWD V6-3.6L Page 303

2010 Cadillac CTS Sedan AWD V6-3.6L Page 303



* Right front speaker output (-) - terminal 3 X1



* Left front speaker output (+) - terminal 1 X1



* Left front speaker output (-) - terminal 2 X1



* Right front speaker output (+) - terminal 7 X1



* Right front speaker output (-) - terminal 3 X1



* Left rear midrange speaker output (+) - terminal 11 X2



* Left rear midrange speaker output (-) - terminal 10 X2



瀚慖f less than the specified range, test both circuits of the affected speaker for a short to ground.



4. If all circuits test normal, reconnect all harness connectors at the amplifier.



5. Ignition ON, radio ON, disconnect the appropriate speaker.



6. Test for 5.0-7.5 volts between the signal circuit terminals and ground.



瀚慖f less then the specified range test the circuit for an open/high resistance. If the circuit tests normal, replace the amplifier.



7. If the circuit tests normal, test or replace the appropriate speaker.



Repair Instructions



Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.



* Speaker Replacement Reference (See: Accessories and Optional Equipment/Testing and Inspection/Symptom Related Diagnostic



Procedures/Cellular, Entertainment, and Navigation/Speaker Replacement Reference)



* Control Module References (See: Testing and Inspection/Programming and Relearning) for amplifier replacement, setup, and programming



B1045



DTC B1025-B1125



Diagnostic Instructions



* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System



Check - Vehicle) prior to using this diagnostic procedure.



* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an



overview of the diagnostic approach.



* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure



Instructions) provide an overview of each diagnostic category.



DTC Descriptors



DTC B1025 01



- Audio Output 1 Left Front Circuit Short to Battery (LF Door)



DTC B1025 02



- Audio Output 1 Left Front Circuit Short to Ground (LF Door)



DTC B1025 04



- Audio Output 1 Left Front Circuit Open (LF Door)



DTC B1035 01



- Audio Output 2 Right Front Circuit Short to Battery (RF Door)



DTC B1035 02



- Audio Output 2 Right Front Circuit Short to Ground (RF Door)



DTC B1035 04



- Audio Output 2 Right Front Circuit Open (RF Door)



DTC B1045 01



- Audio Output 3 Left Rear Circuit Short to Battery (LR Door)



DTC B1045 02



- Audio Output 3 Left Rear Circuit Short to Ground (LR Door)



DTC B1045 04



- Audio Output 3 Left Rear Circuit Open (LR Door)



DTC B1055 01



- Audio Output 4 Right Rear Circuit Short to Battery (RR Door)

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