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.
2021 GMC Terrain SLFACTORY OEM SERVICE PROCEDURE
B160 Windshield Temperature and Inside Moisture Sensor (ASV)
Connector Part Information
|
Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool |
|---|---|---|---|
| I | Not Available | No Tool Required | Not Available |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| 1 | - | RD / | 597 | 5V Reference | I | - |
| 2 | - | BU / | 7564 | Humidity Sensor Signal 2 | I | - |
| 3 | - | BK / | 7566 | Windshield Temperature and Inside Moisture Sensor Low Reference | I | - |
| 4 | - | GN / | 7565 | Windshield Temperature Sensor Signal | I | - |
| 5 | - | YE / | 3197 | Intake Air Humidity and Temperature Sensor Signal | I | - |
| 6 | - | - | - | Not Occupied | - | - |
Factory Service Tools
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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.
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