Section 123 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures)
WARNING: This page is about a different car, the 2018 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
- Diagnostic Information and Procedures
- DTC B0997
- DTC B1024 (Audio Amplifier)
- DTC B1024 (Human Machine Interface Control Module)
- DTC B1024 (Radio)
- DTC B1025-B1135 (IO6)
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Diagnostic Aids
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B1025-B1135 (IOS/IOT)
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Diagnostic Aids
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B124B (IO6 with CW1)
- DTC B124B (IO6 without CW1)
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Diagnostic Aids
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B124B (IOS/IOT)
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B124F
- DTC B125A
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- DTC B125B
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- DTC B125C
- Diagnostic Instructions
- DTC Descriptors
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- DTC B125E (except IO6 or IOT with CW1)
- DTC B125E (IO6 or IOT with CW1)
- DTC B1265
- DTC B126A
- DTC B1271
- DTC B1277 (except IO6 with CW1)
- DTC B1277 (IO6 with CW1)
- DTC B127C
- DTC B127E (IO6)
- DTC B127E (IOS/IOT)
- DTC B12A1
- DTC B12A3
- DTC B12A7
- DTC B12A8
- DTC B1446 or B1447 (UE1 without IOS/IOT)
- DTC B1446 or B1447 (UI3)
- DTC B1446 or B1447 (UE1 with IOS/IOT)
- DTC B245A
- DTC B245B
- DTC B245C
- DTC B2455 (without IOS/IOT)
- DTC B2455 (IOS/IOT)
- DTC B2462 (IO5/IO6 with UE1/UI3)
- Diagnostic Instructions
- DTC Descriptors
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- DTC B2462 (IOS/IOT)
- Diagnostic Instructions
- DTC Descriptors
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- DTC B2462 (without UE1/UI3, CW1)
- DTC B2462 (Cw1)
- DTC B2470
- DTC B2476 or B2482 (UE1)
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC B2476 or B2482 (UI3)
- Symptoms - Cellular Communication
- Symptoms - Entertainment
- Application Malfunction (IO6)
- Application Malfunction (IOS/IOT)
- Auxiliary Audio Input Malfunction (IO6 with CW1)
- Auxiliary Audio Input Malfunction (IO6 without CW1)
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Diagnostic Aids
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- Auxiliary Audio Input Malfunction (IOS/IOT)
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- Bluetooth Malfunction (IO6)
- Bluetooth Malfunction (IOS/IOT)
- Digital Radio Poor or No Reception (U2M)
- Diagnostic Instructions
- DTC Descriptors
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- Digital Radio Poor or No Reception (U2Q)
- Phone Projection Malfunction (Apple CarPlay)
- Phone Projection Malfunction (Android Auto)
- OnStar Microphone Malfunction (without IOS/IOT)
- OnStar Microphone Malfunction (IOS/IOT)
- Media Disc Player Malfunction
- OnStar Audio Malfunction
- No Global Positioning System (GPS) Reception (IO5/IO6 with UE1/UI3)
- Diagnostic Instructions
- DTC Descriptors
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- No Global Positioning System (GPS) Reception (IOS/IOT)
- Diagnostic Instructions
- DTC Descriptors
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- No Global Positioning System (GPS) Reception (without UE1/UI3, CW1)
- No Global Positioning System (GPS) Reception (CW1)
- OnStar Button LED Malfunction
- OnStar Call Center Remote Function Requests Malfunction
- OnStar Button Malfunction (UE1)
- OnStar Button Malfunction (UI3)
- OnStar Steering Wheel Control Functions Malfunction
- Radio Information Display Malfunction (IO6)
- Radio Information Display Malfunction (IOS/IOT)
- Radio Poor Reception
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Component Testing
- Repair Instructions
- Speaker Replacement Reference
- Speaker Malfunction (IO6)
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Diagnostic Aids
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- Speaker Malfunction (IOS/IOT)
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Diagnostic Aids
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- Unable to Contact OnStar Call Center
- Navigation System Malfunction (and SD Card Errors)
- OnStar Voice Recognition Malfunction
- Voice Recognition Malfunction (UE1 with IO5/IO6)
- Voice Recognition Malfunction (without UE1 and IO6 with CW1)
- Voice Recognition Malfunction (IO6 with CW1)
- Voice Recognition Malfunction (IOT with CW1)
- Voice Recognition Malfunction (without UE1 and IOT with CW1)
- Voice Recognition Malfunction (UE1 with IOS/IOT)
- Radio Reset
- SD Card Setup