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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2019TAHOE LS, 4WD, GAS/ETHANOLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 137 (ANTILOCK BRAKE SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC C0242CIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Tahoe LS, 4WD, Gas/Ethanol
Circuit/System Verification
2019 Chevrolet Tahoe LS, 4WD, Gas/EthanolSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2019 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify that no other DTCs are set except for C0242.
- If any other DTCs are set
Refer to the Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If no other DTCs are set
- If any other DTCs are set
- Replace the K20 Engine Control Module.
- Verify that DTC C0242 does not set while operating the vehicle within the Conditions for Running the DTC.
- If DTC sets
Replace the K17 Electronic Brake Control Module.
- Go to next step: If DTC does not set
- If DTC sets
- All OK.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.