u1190 lost communications with humidity sensor
OBD2 Code: U1190
Description: Lost Communication With Humidity Sensor
Definition: This code indicates that the vehicle’s control module has lost communication with the humidity sensor. The humidity sensor is responsible for measuring the moisture content in the air, which can affect various systems such as climate control and defogging functions.
U1190 Lost Communications with Humidity Sensor
– Severity: Moderate
Common Causes
U1190 – Lost Communications with Humidity Sensor
Common Causes:
- Faulty humidity sensor
- Wiring or connection issues in the humidity sensor circuit
- Faulty control module that communicates with the humidity sensor
- Interference from other electronic devices affecting communication with the humidity sensor
Common Misdiagnosis
OBD2 Code: U1190
Description: Lost Communications with Humidity Sensor
Common Misdiagnosis: Faulty humidity sensor replacement without checking wiring or connector issues.
Common Diagnostic Steps
OBD2 Code: U1190
Description: Lost Communications with Humidity Sensor
Common Diagnostic Steps:
- Check the vehicle’s battery voltage and ensure it is fully charged.
- Inspect the humidity sensor wiring harness for any signs of damage, such as fraying or corrosion.
- Verify that all connectors are properly seated and free from moisture or debris.
- Use a scan tool to check for additional trouble codes that may indicate related issues.
- Test the communication lines between the humidity sensor and the control module using a multimeter to ensure continuity.
- If possible, replace the humidity sensor with a known good unit to verify if the issue persists.
- Consult the vehicle’s service manual for specific diagnostic procedures related to this code and follow them accordingly.