LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2017 >> ATS Base, 4D Sedan, AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Cellular System, Entertainment System, And Navigation System - Diagnostic Trouble Codes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Cellular System, Entertainment System, And Navigation System - Diagnostic Trouble Codes

CELLULAR SYSTEM, ENTERTAINMENT SYSTEM, AND NAVIGATION SYSTEM - DIAGNOSTIC TROUBLE CODES

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 Threshold (Human Machine Interface Control Module)
DTC B1025-B1135 Audio Output Circuits (UQA without LF4)
DTC B1025-B1135 Audio Output Circuits (UQS)
DTC B1025-B1135 Audio Output Circuits (UQA with LF4)
DTC B124B USB 1 Circuit (IO5/IO6)
DTC B124B USB 1 Circuit (IO3)
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 B125E Digital Audio Broadcast (DAB) Circuit (except IO6 with CW1)
DTC B125E Digital Audio Broadcast (DAB) Circuit (IO6 with CW1)
DTC B1265 Entertainment System Remote Enable Circuit
DTC B1271 Theft Protection Active
DTC B1277 Microphone 1 Input Signal Circuit (except IO6 with CW1)
DTC B1277 Microphone 1 Input Signal Circuit (IO6 with CW1)
DTC B127E Front Video Display Output Signal (IO3)
DTC B127E Front Video Display Output Signal (IO5/IO6)
DTC B12A1 Audio Control Request Circuit (without UQT)
DTC B12A1 Audio Control Request Circuit (with UQT)
DTC B12A3 Display Control Request Circuit (without UQT)
DTC B12A3 Display Control Request Circuit (with UQT)
DTC B12A4 Infotainment Faceplate Control Module A
DTC B12A6 Info Display Module Internal Malfunction
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 B245A Telematics Green Indicator Circuit
DTC B245B Keypad Red LED Control
DTC B245C Telematics Audio Output circuit
DTC B2455 Cellular Phone Microphone Circuit
DTC B2462 Global Positioning System Signal (without UE1/CW1)
DTC B2462 Global Positioning System (UE1)
DTC B2462 Global Positioning System Signal (CW1)
DTC B2470 Cellular Phone Antenna Circuit Malfunction
DTC B2476 or B2482 Cellular Phone Select Service Switch (UE1)
DTC B2476 or B2482 Cellular Phone Select Service Switch Open (UI3)