Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Cadillac XTS BaseFACTORY OEM SERVICE PROCEDURE
Cellular System, Entertainment System, And Navigation System - DTCS
CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B0997 | Auxiliary Electronic Control Unit Performance |
| DTC B1024 | Circuit Board Temperature Sensor Above Maximum Threshold (Audio Amplifier) |
| DTC B1024 | Circuit Board Temperature Sensor Below/Above Minimum Threshold (Human Machine Interface Control Module) |
| DTC B1025-B1135 | Audio Output 1 Circuit (UQS) |
| DTC B1025-B1135 | Audio Output 1 Circuit (UQA) |
| DTC B124B | USB 1 Circuit |
| DTC B124C | USB 2 Circuit |
| DTC B124F | Universal Serial Bus (USB) Programming |
| DTC B125A | Antenna 1 Signal Circuit |
| DTC B125B | Antenna 2 Signal Circuit |
| DTC B125C | Satellite Antenna Circuit |
| DTC B1271 | Theft Protection Active |
| DTC B127A | Auxiliary Video Input Signal Circuit Open Circuit |
| DTC B127E | Front Video Display Output Signal |
| DTC B1280 | Rear Seat Entertainment Input Signal Circuit Signal Amplitude < Minimum |
| DTC B12A7 | Optical Media Drive Internal Electronic Failure/Optical Media Drive Build Variant not Programmed |
| DTC B12A8 | Optical Media Drive Theft Locked |
| DTC B1446 or B1447 | Replace Backup Power Source Below Minimum Threshold/Backup Power Source Open Circuit |
| DTC B2455 | Cellular Phone Microphone Circuit |
| DTC B2462 | Global Positioning System |
| DTC B2470 | Cellular Phone Antenna |
| DTC B2476 or B2482 | Cellular Phone Antenna |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.