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.
2014 Chevrolet SSFACTORY OEM SERVICE PROCEDURE
Data Communication System - Diagnostic Trouble Codes
DATA COMMUNICATION SYSTEM - DIAGNOSTIC TROUBLE CODES
| DTC | Description |
|---|---|
| DTC B1000 | Electronic Control Unit |
| DTC B1001 | Option Configuration |
| DTC B101D | Electronic Control Unit Hardware |
| DTC B101E | Electronic Control Unit Software |
| DTC C056D | Electronic Control Unit Hardware |
| DTC C056E | Electronic Control Unit Software |
| DTC P0601-P0606, P060A, P062F, or P262B | Control Module Memory/Processor |
| DTC U0001 | High Speed CAN Communication Bus |
| DTC U0020 | Low Speed CAN Bus |
| DTC U0073 or U2100 | Control Module Communication Bus/CAN Bus |
| DTC U0074 | Control Module Communication Bus |
| DTC U0077 | Control Module Communication Chassis Expansion CAN Bus |
| DTC U0078 | Control Module Communication Low Speed CAN Bus |
| DTC U0100-U02FF | Module Error |
| DTC U0300-U0336 | Module Error |
| DTC U0400-U05FF | Module Error |
| DTC U1500-U15FF | Module Error |
| DTC U1814 | Powertrain Wake-Up Communication |
| DTC U18B9-U18BF | High Speed CAN Bus Subnet |
| DTC U2099 | High Speed Communication Enable Circuit |
| DTC U2101 | CAN Bus Maximum List of Control Modules |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.