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 MANUALSCHEVROLET2018SONIC LS, 1.8L ENG VIN H, AUTOMATIC TRANSREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSFIXED AND MOVEABLE WINDOW SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESREAR WINDOW DEFOGGER MALFUNCTIONDIAGNOSTIC FAULT INFORMATION
2018 Chevrolet Sonic LS, 1.8L Eng VIN H, Automatic Trans
Diagnostic Fault Information
2018 Chevrolet Sonic LS, 1.8L Eng VIN H, Automatic TransSECTION Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ - Relay Switch | 1 | 1 | - | - |
| Control - E18 Rear Defogger Grid | 1 | 1 | 2 | - |
| Control - Relay Coil | B0283 02 | B0283 05 | B0283 05 | - |
| Ground - Relay Coil | - | B0283 05 | - | - |
| Ground - E18 Rear Defogger Grid | - | 1 | - | - |
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RENDER: 1.0x
NO RELATED
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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.