2010 Cadillac CTS Sedan AWD V6-3.6L Page 180
Circuit/System Verification
Verify DTC B101E is not set.
If the DTC is set, program the control module. If the DTC resets, replace the control module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for control module replacement, setup, and programming
B125C
DTC B125C
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) provides an overview of each diagnostic category.
DTC Descriptors
DTC B125C 01
- Satellite Antenna 1 Circuit Short to Battery
DTC B125C 02
- Satellite Antenna 1 Circuit Short to Ground
DTC B125C 04
- Satellite Antenna 1 Circuit Open Circuit
Circuit/System Description
The digital radio receiver, located inside the radio, receives digital radio information from the digital radio antenna located on the outside of the
vehicle. The digital radio receiver is connected to the digital radio antenna via a shielded coax cable.
Conditions for Running the DTC
This DTC is run every 300 milliseconds.
Conditions for Setting the DTC
The radio detects a circuit fault in the digital radio antenna.
Action Taken When the DTC Sets
The radio displays No XM Signal or Check Antenna.
Conditions for Clearing the DTC
* A current DTC clears when the condition for setting the DTC is no longer present.
* A history DTC clears after 100 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
