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 MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC C0131CIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol
Circuit/System Verification
2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION Circuit/System Verification
- Ignition ON.
- Verify the brakes are not dragging.
Refer to Brakes Drag .
- Apply and release brake pedal. Verify the brake stop lamps operate properly.
- If the brake stop lamps do not operate properly
Refer to Symptoms - Lighting .
- Go to next step: If the brake stop lamps operate properly
- If the brake stop lamps do not operate properly
- Verify that DTC C0131 is not set.
- If the DTC is set
- Perform the Brake Pressure Modulator Valve Pressure Sensor Calibration .
- Verify the DTC does not set.
- If the DTC sets, replace the K17 Electronic Brake Control Module with the Brake Pressure Modulator.
- Go to next step: If the DTC does not set
- All OK.
- Go to next step: If the DTC is not set
- All OK.
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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.