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.
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HOMESERVICE MANUALSCHEVROLET2015CAPTIVA SPORT LTZREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMDATA COMMUNICATION SYSTEM
2015 Chevrolet Captiva Sport LTZ
Data Communication System
2015 Chevrolet Captiva Sport LTZSECTION Data Communication System
- Schematic Wiring Diagrams
- Diagnostic Information and Procedures
- Control Module U Code List
- DTC B1000: Side Object Detection/Electronic Control Unit
- DTC B1001: Option Configuration Error
- DTC B1004: Keep Alive Memory (KAM) Reset
- DTC B1009: EEPROM Checksum Mismatch/Error
- DTC B1016: VIN Not Programmed
- DTC B101D: Electronic Control Unit
- DTC B101E: Electronic Control Unit
- DTC B1023: CAN Bus Error
- DTC C0550: Electronic Control Unit /ECU Performance/ECU Malfunction
- DTC C056D: Electronic Control Unit
- DTC C056E: Electronic Control Unit
- DTC U0020: Low Speed CAN Communication Bus Performance
- DTC U0073 or U2100: ECU/Controller Area Network
- DTC U0074: Control Module Communication
- DTC U0078: Control Module Low Speed Communication Bus Off Malfunction
- DTC U0100 - U02FF: Control Module Communication
- 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 U1128: Lost Communication with Park Brake Control Module
- DTC U1500: Inter-Device Dedicated Bus 1
- DTC U1511: LIN Bus 1 Lost Communication with Device 1
- DTC U18A2: Lost Communication with Fuel Pump Driver Control Module
- 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
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC U2099: High Speed Communication Enable Circuit
- DTC U2616: Fuel Pump Driver Control Module Lost Communication with ECM
- 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
- Diagnostic Aids
- Reference Information
- Circuit/System Verification
- Circuit/System Testing
- Repair Instructions
- DTC U2103: Fewer Controllers On Than Programmed
- DTC U2105-U2199 (Except U2142 and U2143): Lost Communication
- DTC U2105-U2199 (U2142 or U2143 only): Lost Communication
- 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 Keyword Data Line
- Scan Tool Does Not Communicate with Low Speed GMLAN Device
- Data Link References
- Repair Instructions
- Description and Operation
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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.