Data Communication System
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Control Module U Code List
- DTC B1000: Electronic Control Unit/Side Object Detection Performance
- DTC B1001: Option Configuration Error
- DTC B1004: Keep Alive Memory
- DTC B1016: VIN Not Programmed
- DTC B101D: ECU Hardware
- DTC B101E: Electronic Control Unit Software
- DTC C0550: Electronic Control Unit
- DTC U0020: Low Speed CAN Communication Bus
- DTC U0073 or U2100: Control Module Communication Bus/Controller Area Network (CAN) Bus/ECU HS-LS Bus
- DTC U0074: Control Module Powertrain Expansion Communication Bus
- DTC U0100 - U02FF: Module Error (except U029D and U029E)
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC U0100 - U02FF: Lost Communication with NOX Sensor Module (U029D and U029E only)
- Diagnostic Instructions
- DTC Descriptor
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC U1500, U1511, U1512 or U1513: LIN Bus/Lost Communication With RCM
- Diagnostic Instructions
- DTC Descriptors
- Diagnostic Fault Information
- Circuit/System Description
- Conditions for Running the DTC
- Conditions for Setting the DTC
- Action Taken When the DTC Sets
- Conditions for Clearing the DTC
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC U1814: Powertrain High Speed Communication
- DTC U1826: Lost Communication With Multi-Axis Acceleration Sensor Module
- DTC U1865: Fuel Operated Heater Lost Communication with Engine Control Module
- DTC U2099: High Speed Communication Enable Circuit
- Symptoms - Data Communications
- Scan Tool Does Not Power Up
- Scan Tool Does Not Communicate with High Speed GMLAN Device
- Scan Tool Does Not Communicate with Low Speed GMLAN Device
- Data Link References
- Repair Instructions
- Description and Operation