2010 Cadillac CTS Sedan AWD V6-3.6L Page 348
DTC B1283 00
- Television Antenna 1 Performance
DTC B1284 00
- Television Antenna 2 Performance
DTC B1285 00
- Television Antenna 3 Performance
DTC B1286 00
- Television Antenna 4 Performance
Circuit/System Description
The TV antenna signal circuits consists of 4 individual coaxial cables that carry the TV signal information received by the TV antenna through the
TV antenna amplifier to the TV antenna module.
Conditions for Running the DTC
* Ignition ON.
* Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
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.
