Lost Communication With Windshield Temperature Sensor

Where it lives

For U0658, the part to look at first is the sensor named here.

Check these first

• The bus loses the windshield temperature sensor
• An open signal circuit at the windshield sensor
• A corroded connector behind the glass
• A short in the windshield sensor harness
• A failed windshield temperature sensor element

What to do next

1. Read windshield temperature sensor data on a scan tool
2. Inspect the sensor connector and wiring
3. Check the signal and ground circuits
4. Compare the reading against ambient temperature
5. Replace the windshield temperature sensor if it stays offline
6. Clear the code and retest

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