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 MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1596 (DATA COMMUNICATION SYSTEM)
2006 Chevrolet Suburban K2500, 6.0 U
Section 1596 (Data Communication System)
2006 Chevrolet Suburban K2500, 6.0 USECTION Section 1596 (Data Communication System)
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Data Communications
- Control Module U Code List
- DTC B1000
- DTC B1001
- DTC B1009
- DTC B101D
- DTC B101E
- DTC B1016
- DTC B137A
- DTC B137B
- 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 Procedures
- DTC C0550
- DTC U0020
- DTC U0073 or U2100
- DTC U0074
- DTC U0100-U0299
- Diagnostic Instructions
- 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 Procedures
- DTC C126C, C126D, C12E3, or U180F
- DTC U1500
- DTC U1511
- DTC U1814
- DTC U1815
- 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 Procedures
- DTC U1817
- DTC U1818
- 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 Procedures
- DTC U1820
- DTC U182A
- 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 Procedures
- DTC U1842
- DTC U1843
- DTC U1862
- DTC U1863
- DTC U1866-U1899
- DTC U186A
- DTC U1875
- DTC U1876
- DTC U1878
- DTC U1879
- DTC U1885
- DTC U1888
- DTC U2099
- DTC U209A
- DTC U2103
- DTC U2105-U2199 (Except U2142 and U2143)
- Diagnostic Instructions (Except U2142 and U2143)
- DTC Descriptors (Except U2142 and U2143)
- Diagnostic Fault Information (Except U2142 and U2143)
- Circuit/System Description (Except U2142 and U2143)
- Conditions for Running the DTC (Except U2142 and U2143)
- Conditions for Setting the DTC (Except U2142 and U2143)
- Action Taken When the DTC Sets (Except U2142 and U2143)
- Conditions for Clearing the DTC (Except U2142 and U2143)
- Diagnostic Aids (Except U2142 and U2143)
- Reference Information (Except U2142 and U2143)
- Circuit/System Testing (Except U2142 and U2143)
- Repair Procedures (Except U2142 and U2143)
- DTC U2105-U2199 (U2142 or U2143 only)
- Diagnostic Instructions (U2142 or U2143 only)
- DTC Descriptors (U2142 or U2143 only)
- Diagnostic Fault Information (U2142 or U2143 only)
- Circuit/System Description (U2142 or U2143 only)
- Conditions for Running the DTC (U2142 or U2143 only)
- Conditions for Setting the DTC (U2142 or U2143 only)
- Action Taken When the DTC Sets (U2142 or U2143 only)
- Conditions for Clearing the DTC (U2142 or U2143 only)
- Diagnostic Aids (U2142 or U2143 only)
- Reference Information (U2142 or U2143 only)
- Circuit/System Testing (U2142 or U2143 only)
- Repair Procedures (U2142 or U2143 only)
- 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
- Scan Tool Does Not Communicate with Powertrain High 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.