U066A
Lost Communication With EGR Sensor E
U066A is an OBD-II diagnostic trouble code meaning: Lost Communication With EGR Sensor E. Common causes: open or short circuit in the egr sensor circuit, malfunction of the egr sensor itself. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Is On
- Unstable engine idling
- Increased fuel consumption
- Reduced engine power
- Dips during acceleration
Causes
- Open or short circuit in the EGR sensor circuit
- Malfunction of the EGR sensor itself
- Problems with the sensor connector
- ECU malfunction
- Contact corrosion
How to Fix
- Check the integrity of the sensor wires and connectors
- Check the power supply and ground of the sensor
- Check EGR sensor resistance
- Replace EGR sensor if necessary
- Check and, if necessary, replace the computer
Related codes
Error U066A by Vehicle Brand
FAQ
What does the U066A code mean?
U066A is an OBD-II diagnostic trouble code that indicates: Lost Communication With EGR Sensor E
What causes a U066A error code?
The most common causes of U066A include: Open or short circuit in the EGR sensor circuit; Malfunction of the EGR sensor itself; Problems with the sensor connector; ECU malfunction.
How do I fix a U066A diagnostic trouble code?
To fix U066A: Check the integrity of the sensor wires and connectors. Check the power supply and ground of the sensor. Check EGR sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U066A?
Yes, but get it checked soon
How much does it cost to fix U066A?
The estimated repair cost for U066A is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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