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 MANUALSMAZDA2008TRIBUTE S SPORT, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1106 (AUXILIARY BRAKE SYSTEM)
2008 Mazda Tribute s Sport, 4WD
Section 1106 (Auxiliary Brake System)
2008 Mazda Tribute s Sport, 4WDSECTION Section 1106 (Auxiliary Brake System)
WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Diagnosis And Testing
- Auxiliary Brake System - Trailer Brake Control (TBC) Module
- Notes
- Principles of Operation
- Inspection and Verification
- Symptom Chart
- Programmable Parameters
- Pinpoint Tests
- No Communication With The Trailer Brake Control (TBC) Module
- Normal Operation
- Pinpoint Test B: DTCs B1317 And B1318 - Battery Voltage High/Low
- Pinpoint Test C: DTCs C2797, C2798, C2800, C2801 And C2803 - Brake Pressure Transducer Circuit Failure
- Pinpoint Test D: DTCs C2806, C2807 and C2808 - Trailer Brakes Circuit Failure
- Pinpoint Test E: The TBC Module LED Display Does Not Illuminate And The Trailer Brakes Are Inoperative
- Pinpoint Test F: The Trailer Brakes Are Inoperative
- Pinpoint Test G: The Trailer Brakes Are Always Engaged
- Pinpoint Test H: The Instrument Cluster Displays "TBC FAULT"
- Auxiliary Brake System - Trailer Brake Control (TBC) Module
- Removal And Installation
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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.