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 426 (TRAILER BRAKE CONTROL SYSTEM)REPAIR INSTRUCTIONSTRAILER BRAKE CONTROL RELAY REPLACEMENT (1500)REMOVAL PROCEDURE
2009 Chevrolet Tahoe Base, 4.8 C
Removal Procedure
2009 Chevrolet Tahoe Base, 4.8 CSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Turn the ignition switch to the OFF position.
- Remove the spare tire and wheel assembly. Refer to Spare Wheel Hoist Replacement .
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Remove the fuel pump flow control module (1). Refer to Fuel Pump Flow Control Module Replacement .
- Remove the trailer brake control relay bolts (1).
- Disconnect the electrical connector and remove the trailer brake control relay (1).
NOTE:
Do not remove the spare wheel hoist.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.