2010 Cadillac CTS Sedan AWD V6-3.6L Page 348

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.