2010 Cadillac CTS Sedan AWD V6-3.6L Page 335

2010 Cadillac CTS Sedan AWD V6-3.6L Page 335

Conditions for Clearing the DTC

* A current DTC clears when the conditions for setting the DTC are no longer present and the ignition has been cycled from OFF to ON.

* A history DTC clears after 50 malfunction-free ignition cycles.

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 Verification

Radio ON, adjust the fade and balance controls on the radio to test all channels individually. Each channel should produce clear and even sound.

Circuit/System Testing

1. Ignition OFF, disconnect the X1 and X2 connectors at the amplifier.

2. Radio ON, test for less than 1 volt between the appropriate signal circuit terminal listed below and ground:

* Left front tweeter speaker output (+) - terminal 4 X2

* Left front tweeter speaker output (-) - terminal 5 X2

* Right front tweeter speaker output (+) - terminal 7 X2

* Right front tweeter speaker output (-) - terminal 6 X2

* Left rear speaker output (+) - terminal 16 X2

* Left rear speaker output (-) - terminal 8 X2

* Right rear speaker output (+) - terminal 15 X2

* Right rear speaker output (-) - terminal 14 X2

* Front center speaker output (+) - terminal 13 X2

* Front center speaker output (-) - terminal 12 X2

* Left rear subwoofer speaker output (+) - terminal 5 X1

* Left rear subwoofer speaker output (-) - terminal 6 X1

* Right front speaker output (+) - terminal 7 X1

* Right front speaker output (-) - terminal 3 X1

* Left front speaker output (+) - terminal 1 X1

* Left front speaker output (-) - terminal 2 X1

* Right front speaker output (+) - terminal 7 X1

* Right front speaker output (-) - terminal 3 X1

* Left rear midrange speaker output (+) - terminal 11 X2

* Left rear midrange speaker output (-) - terminal 10 X2

瀚慖f greater than the specified range, test both circuits of the affected speaker for a short to voltage.

3. Radio ON, test for greater than 1 ohm between the appropriate signal circuit terminal listed below and ground:

* Left front tweeter speaker output (+) - terminal 4 X2

* Left front tweeter speaker output (-) - terminal 5 X2

* Right front tweeter speaker output (+) - terminal 7 X2

* Right front tweeter speaker output (-) - terminal 6 X2

* Left rear speaker output (+) - terminal 16 X2

* Left rear speaker output (-) - terminal 8 X2