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 MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISBRAKESANTI-LOCK BRAKE SYSTEM, TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESSTABILITY SYSTEM NOT READY INDICATOR ALWAYS ONCIRCUIT VERIFICATION
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Circuit Verification
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Circuit Verification
Ignition ON, observe the scan tool VSES EBCM steering wheel position sensor SWPS Phase A and SWPS Phase B parameters. The reading per SWPS should change from Low to High and change with the rotation of the steering wheel.
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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.