2010 Cadillac CTS Sedan AWD V6-3.6L Page 343
The TV antenna module detects a open or short to ground on one or more of the 4 TV antenna coax cables for 20 seconds.
Action Taken When the DTC Sets
The TV antenna module disables all 4 coax cables when a short to ground is detected. When the TV antenna detects an open/high resistance in one
or more TV antenna coax inputs, the unaffected TV antenna coax inputs will continue to operate.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* The DTC clears after the TV function has been cycled OFF then ON.
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 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.
