2010 Cadillac Truck SRX AWD V6-3.0L Page 557
* Control Module References (See: Testing and Inspection/Programming and Relearning) for telematics communication interface control
module replacement, setup and programming
B2485
DTC B2485
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provide an overview of each diagnostic category.
DTC Descriptors
DTC B2485 04
- Wireless Communication Antenna Circuit Open
Circuit/System Description
The Bluetooth (R) antenna is a small fixed antenna connected directly to the telematics communication interface control module and is used to send
and receive signals from a Bluetooth (R) enabled cellular phone. The antenna utilizes no cabling and is not external to the vehicle.
Conditions for Running the DTC
* Ignition ON.
* Battery voltage must be between 9-16 V.
* The telematics communication interface control module tests the antenna once every second.
Conditions for Setting the DTC
The telematics communication interface control module detects a short to ground or an open/high resistance in the Bluetooth (R) antenna.
Actions Taken When the DTC Sets
* The OnStar (R) status LED turns red.
* Bluetooth (R) functionality is disabled.
Conditions for Clearing the DTC
* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.
Schematic Reference
OnStar Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/OnStar Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views/Connector End Views By Name)
Description and Operation
OnStar Description and Operation (See: Accessories and Optional Equipment/Description and Operation/OnStar)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
