U0693
Lost Communication With Humidity Sensor
U0693 is an OBD-II diagnostic trouble code meaning: Lost Communication With Humidity Sensor. Common causes: air humidity sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.
Symptoms
- Incorrect operation of the climate control system
- Lack of automatic humidity control in the cabin
- Fogging of glasses when temperature changes
- Check Engine Light Illuminates
- There may be errors in the operation of other climate-related systems
Causes
- Air humidity sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring harness damage
- Software error in the ECU
How to Fix
- Check the integrity of the humidity sensor
- Inspect connectors and wiring for damage
- Check the voltage and resistance in the sensor circuit
- Scan the ECU for additional errors
- If necessary, replace the humidity sensor
Related codes
Error U0693 by Vehicle Brand
FAQ
What does the U0693 code mean?
U0693 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Humidity Sensor
What causes a U0693 error code?
The most common causes of U0693 include: Air humidity sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a U0693 diagnostic trouble code?
To fix U0693: Check the integrity of the humidity sensor. Inspect connectors and wiring for damage. Check the voltage and resistance in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0693?
Yes, but get it checked soon
How much does it cost to fix U0693?
The estimated repair cost for U0693 is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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