U019D
Lost Communication With Direct Ozone Reduction Catalyst Temperature Sensor
U019D is an OBD-II diagnostic trouble code meaning: Lost Communication With Direct Ozone Reduction Catalyst Temperature Sensor. Common causes: malfunction of the catalyst temperature sensor, open or shorted sensor wiring. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Illuminates
- Possible reduction in catalyst efficiency
- Incorrect catalyst temperature data
- Other CAN bus related error codes
Causes
- Malfunction of the catalyst temperature sensor
- Open or shorted sensor wiring
- Problems with the CAN bus
- Engine control module (ECU) malfunction
How to Fix
- Check the wiring and connectors of the catalyst temperature sensor for damage
- Check catalyst temperature sensor to manufacturer specifications
- Check the CAN bus for breaks or short circuits
- Check ECU for errors and update software if necessary
Related codes
Error U019D by Vehicle Brand
FAQ
What does the U019D code mean?
U019D is an OBD-II diagnostic trouble code that indicates: Lost Communication With Direct Ozone Reduction Catalyst Temperature Sensor
What causes a U019D error code?
The most common causes of U019D include: Malfunction of the catalyst temperature sensor; Open or shorted sensor wiring; Problems with the CAN bus; Engine control module (ECU) malfunction.
How do I fix a U019D diagnostic trouble code?
To fix U019D: Check the wiring and connectors of the catalyst temperature sensor for damage. Check catalyst temperature sensor to manufacturer specifications. Check the CAN bus for breaks or short circuits. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U019D?
Yes, but get it checked soon
How much does it cost to fix U019D?
The estimated repair cost for U019D is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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