Data Communication System
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- Control Module U Code List
- DTC B1000: Electronic Control Unit (ECU) Performance/Side Object Detection Performance
- DTC B1001: Option Configuration Error
- DTC B1004: Keep Alive Memory (KAM) Reset
- DTC B1016: VIN Not Programmed
- DTC B101D: ECU Hardware
- DTC B101E: Electronic Control Unit Software
- DTC C0550: Electronic Control Unit
- DTC P0601-P0607, P060A-P060C, P0610, P062F, P16E9-P16F0, or P262B: Control Module
- DTC U0020: Low Speed CAN Communication Bus Performance
- DTC U0073 or U2100: Control Module Communication Bus Off/ECU HS Bus Off/ECU LS Bus Off/Controller Area Network (CAN) Bus Communication
- DTC U0074: Control Module Powertrain Expansion Communication Bus Off
- DTC U0076: Control Module Communication Powertrain Sensor CAN Bus Off
- DTC U0100 - U02FF: Control Module U Code List (Except U010E, U029D and U029E)
- DTC U010C, U010E, U029D, U029E, or U02A3: Lost Communication with Reductant/NOX/Particulate Matter Sensor Module
- DTC U1500, U1511, U1512, or U1513: LIN Bus Fault/Lost Communication With RCM
- DTC U1814: Powertrain High Speed Communication Enable Circuit
- DTC U1826: Lost Communication With Multi-Axis Acceleration Sensor Module on Bus "B"
- DTC U1865: Fuel Operated Heater Lost Communication with Engine Control Module
- DTC U18A2: Lost Communication with Fuel Pump Driver Control Module
- DTC U2099: High Speed Communication Enable Circuit
- DTC U2616: Fuel Pump Driver Control Module Lost Communication with ECM
- 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