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 Buick Enclave ConvenienceFACTORY OEM SERVICE PROCEDURE
Data Communication System - DTCS
DATA COMMUNICATION SYSTEM - DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC B1000 | Electronic Control Unit, Object Detection |
| DTC B1001 | Option Configuration Error |
| DTC B1016 | VIN Not Programmed |
| DTC B101D | Electronic Control Unit Hardware |
| DTC B101E | Electronic Control Unit Software |
| DTC C0550 | Electronic Control Unit |
| DTC U0020 | Low Speed CAN Communication Bus Performance |
| DTC U0073 or U2100 | Control Module Communication Bus Off, ECU Bus Off, Controller Area Network (CAN) Bus Communication |
| DTC U0074 | Control Module Communication Powertrain Expansion CAN Bus Off Malfunction |
| DTC U0100, U02FF | Control Module |
| DTC U0400, U05FF | Control Module |
| DTC U1500, U1511, U1512, or U1513 | Inter-Device Dedicated Bus 1 Short, Electronic Control Unit (ECU) Performance General Checksum Failure, Inter-device Dedicated Bus Lost Communication With Device |
| DTC U1500, U15FF | Control Module |
| DTC U1814 | Powertrain High Speed Communication Enable Circuit |
| DTC U18A2 | Lost Communication with Fuel Pump Driver Control Module |
| DTC U2099 | High Speed Communication Enable Circuit |
| DTC U2103 | Fewer Controllers On Than Programmed |
| DTC U2105, U2199 | Lost Communication With Yaw Rate Sensor (YRS), Steering Position Signal |
| DTC U2616 | Fuel Pump Driver Control Module Lost Communication with ECM |
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.
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