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2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 433

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 433

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

5. 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.

瀚慖f greater then the specified range test the circuit for a short to voltage. If the circuit tests normal, replace the amplifier.

7. If the circuit tests normal, 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 and Radio replacement, setup, and

programming

B1095

DTC B1025-B1095

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

DTC B1025 02

- Audio Output 1 Left Front Circuit Short to Ground

DTC B1025 04

- Audio Output 1 Left Front Circuit Open

DTC B1035 01

- Audio Output 2 Right Front Circuit Short to Battery

DTC B1035 02

- Audio Output 2 Right Front Circuit Short to Ground

DTC B1035 04

- Audio Output 2 Right Front Circuit Open

DTC B1045 01

- Audio Output 3 Left Rear Circuit Short to Battery

DTC B1045 02

- Audio Output 3 Left Rear Circuit Short to Ground

DTC B1045 04

- Audio Output 3 Left Rear Circuit Open

DTC B1055 01

- Audio Output 4 Right Rear Circuit Short to Battery

DTC B1055 02

- Audio Output 4 Right Rear Circuit Short to Ground

DTC B1055 04

- Audio Output 4 Right Rear Circuit Open

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