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 MANUALSCHEVROLET2016EXPRESS 2500 LS, 6.0L ENG VIN GREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSFIXED AND MOVEABLE WINDOW SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESREAR WINDOW DEFOGGER MALFUNCTIONDIAGNOSTIC FAULT INFORMATION
2016 Chevrolet Express 2500 LS, 6.0L Eng VIN G
Diagnostic Fault Information
2016 Chevrolet Express 2500 LS, 6.0L Eng VIN GSECTION Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| HVAC Controls Switch Assembly B+ | 2 | 2 | - | - |
| Rear Defogger Relay B+ | 2 | 2 | - | - |
| Rear Defogger Relay Control | 2 | 2 | 1 | - |
| Left Rear Window Defogger Grid Control | 2 | 3 | 1 | - |
| Right Rear Window Defogger Grid Control | 2 | 3 | 1 | - |
| Rear Defogger Relay Ground | - | 2 | - | - |
| Left Rear Window Defogger Grid Ground | - | 3 | - | - |
| Right Rear Window Defogger Grid Ground | - | 3 | - | - |
| HVAC Controls Switch Assembly Ground | - | 2 | - | - |
| 1. Rear defogger grids always On 2. Both rear defogger grids inoperative 3. Single rear defogger grid inoperative |
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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.