Diagnostic Code Index

2011 Chevrolet Tahoe Base, 5.3 0, 4WDSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX

DTC Description
DTC B0775  B0775 01: 4 High Indicator Circuit Short to Battery
B0775 06: 4 High Indicator Circuit Short to Ground or Open
DTC B0780  B0780 01: 4 High Indicator Circuit Short to Battery
B0780 06: 4 High Indicator Circuit Short to Ground or Open
DTC B0785  B0785 01: 2 High Indicator Circuit Short to Battery
B0785 06: 2 High Indicator Circuit Short to Ground or Open
DTC B0790  B0790 01: Neutral Indicator Circuit Short to Battery
B0790 06: Neutral Indicator Circuit Short to Ground or Open
DTC B2725  B2725 08: Active Transfer Case Mode Switch Circuit
DTC C0306  C0306 02: Motor A or B Circuit Short to Ground
C0306 05: Motor A or B Circuit Short to Battery or Open
DTC C0379  C0379 01: Front Axle System Short to Battery
C0379 02: Front Axle System Short to Ground
C0379 04: Front Axle System Open Circuit
C0379 08: Front Axle System Signal Invalid
DTC C0387  C0387 59: Unable to Complete Shift Circuit/Component Protection Timeout
DTC C0396  C0396 01: Incremental Position Sensor Circuit Short to Battery
C0396 02: Incremental Position Sensor Circuit Short to Ground
C0396 04: Incremental Position Sensor Open Circuit
C0396 05: Incremental Position Sensor Circuit Short to Battery or Open
DTC C0550  C0550 37: Electronic Control Unit Malfunction Watchdog/Safety Failure
C0550 39: Electronic Control Unit Malfunction Internal Electronic Failure
DTC C0569  C0569 4B: System Configuration Error Calibration Data Not Learned
DTC C0896  C0896 03: Device Voltage Range Voltage Below Threshold
C0896 07: Device Voltage Range Voltage Above Threshold
DTC P2160 or P2161  P2160: Vehicle Speed Sensor (VSS) 2 Circuit Low Voltage
P2161: Vehicle Speed Sensor (VSS) 2 Circuit Intermittent
RENDER: 1.0x

NO RELATED

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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.