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 MANUALSCHEVROLET2025SUBURBAN LS, RWDREPAIR AND DIAGNOSISSUSPENSIONSUSPENSION CONTROL SYSTEMSSUSPENSION CONTROLS SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDTC C1196CIRCUIT/SYSTEM VERIFICATION
2025 Chevrolet Suburban LS, RWD
Circuit/System Verification
2025 Chevrolet Suburban LS, RWDSECTION Circuit/System Verification
- Ignition ON.
- Ignition OFF and all vehicle systems OFF.
- Inspect the exhaust hose, compressor, and related air lines for damage, improper seating, or evidence of water/ice in the system.
- If an issue is found
Repair or replace as necessary
- Go to next step: If an issue is not found
- If an issue is found
- Replace the Air Suspension Controller.
- Clear DTCs. Operate system under the Conditions for Running the DTC.
- Verify DTCs do not reset.
- If DTC sets
Replace the K5 Automatic Level Control Module
- Go to next step: If the DTC does not set
- If DTC sets
- A fault is not currently present and may be an intermittent condition.
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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.