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 MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 264 (TRAILER BRAKE CONTROL SYSTEM)
2009 Chevrolet Tahoe Base, 4.8 C
Section 264 (Trailer Brake Control System)
2009 Chevrolet Tahoe Base, 4.8 CSECTION Section 264 (Trailer Brake Control System)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 GMC Yukon XL, 2010 GMC Yukon, 2010 Chevrolet Tahoe, 2010 Chevrolet Suburban, and 2010 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Diagnostic Information and Procedures
- Diagnostic Code Index
- DTC B3894 (Gasoline With LY6, or Diesel)
- DTC B3894 (Gasoline Without LY6)
- DTC C0561 (Gasoline Without LY6)
- DTC C0561 (Gasoline With LY6, or Diesel)
- DTC C0870, C1112, C1113, C1114, or C1119 (Gasoline Without LY6)
- DTC C0870, C1112, C1113, C1114, or C1119 (Gasoline With LY6, or Diesel)
- DTC C0880, C0890, C1115, C1116, C1117, or C1118 (Gasoline Without LY6)
- DTC C0880, C0890, C1115, C1116, C1117, or C1118 (Gasoline With LY6, or Diesel)
- 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.