2010 Cadillac CTS Sedan AWD V6-3.6L Page 345

2010 Cadillac CTS Sedan AWD V6-3.6L Page 345

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 Testing

1. Ignition OFF, disconnect the appropriate antenna harness connector at the TV antenna module and the harness connector at the TV antenna

amplifier.

2. Test for less than 5 ohms of resistance between the two ends of the coax cable center conductor.

瀚慖f greater than the specified range, replace the antenna coax cable.

3. Test for less than 5 ohms of resistance between the two ends of the coax cable outer shield.

瀚慖f greater than the specified range, replace the antenna coax cable.

4. Test for infinite resistance between the antenna coax center conductor and the outer shield.

瀚慖f less than the specified range, replace the antenna coax cable.

5. Connect the harness connector at the TV antenna module.

6. Ignition ON, TV ON, wait 20 seconds, test for more than 1 volt at the coax cable center conductor terminal 2.

瀚慖f less than the specified value, replace the TV antenna module.

7. Ignition OFF, disconnect the harness connector at the appropriate TV antenna.

8. Test for less than 5 ohms of resistance between the two ends of the TV antenna coax cable center conductor.

瀚慖f greater than the specified range, replace the TV antenna coax cable.

9. Test for less than 5 ohms of resistance between the two ends of the TV antenna coax cable outer shield.

瀚慖f greater than the specified range, replace the TV antenna coax cable.

10. Test for infinite resistance between the TV antenna coax center conductor and the outer shield.

瀚慖f less than the specified range, replace the TV antenna coax cable.

11. Ignition OFF, TV OFF, connect the harness connector at the TV antenna amplifier.

12. Ignition ON, TV ON, wait 20 seconds, test for more than 1 volt at the TV antenna coax cable center conductors.

瀚慖f less than the specified value, replace the TV antenna amplifier.

13. If all circuits test normal, replace the inoperative TV antenna.

Repair Instructions

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

* Television Antenna Amplifier Replacement (See: Accessories and Optional Equipment/Antenna/Antenna Amplifier/Service and Repair)

* Television Antenna Cable Replacement (See: Accessories and Optional Equipment/Antenna/Antenna, TV/Service and Repair)