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
Keyless Entry System And Remote Functions - DTCS
KEYLESS ENTRY SYSTEM AND REMOTE FUNCTIONS DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B305D | Challenge Active Circuit |
| DTC B3101 | Keyless Entry Data Link Circuit |
| DTC B3105 | Keyless Entry System Transmitters |
| DTC B3106 | Keyless Entry Data Link |
| DTC B3109-B3113 | Keyless Entry Transmitter 1-5 Battery |
| DTC B310D-B310F | Keyless Entry Transmitter 6-8 Battery |
| DTC B3119 | Keyless Entry Antenna 1 |
| DTC B3120 | Keyless Entry Antenna 2 |
| DTC B3121 | Keyless Entry Antenna 3 |
| DTC B3122 | Keyless Entry Antenna 4 |
| DTC B3123 | Keyless Entry Antenna 5 |
| DTC B3124 | Keyless Entry Antenna 6 |
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.