U0669
Lost Communication With EGR Sensor D
U0669 is an OBD-II diagnostic trouble code meaning: Lost Communication With EGR Sensor D. Common causes: egr d sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–67.
Symptoms
- Check Engine light comes on
- Poor engine performance at idle
- Increased fuel consumption
- Reduced engine power
- Unstable operation during acceleration
Causes
- EGR D sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Wiring harness damage
- Engine ECU malfunction
How to Fix
- Check the continuity of the EGR D sensor circuit
- Inspect the connectors and contacts of the sensor
- Check sensor resistance
- Replace faulty EGR D sensor
- Flash or replace the ECU if necessary
Related codes
Error U0669 by Vehicle Brand
FAQ
What does the U0669 code mean?
U0669 is an OBD-II diagnostic trouble code that indicates: Lost Communication With EGR Sensor D
What causes a U0669 error code?
The most common causes of U0669 include: EGR D sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a U0669 diagnostic trouble code?
To fix U0669: Check the continuity of the EGR D sensor circuit. Inspect the connectors and contacts of the sensor. Check sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0669?
Yes, but get it checked soon
How much does it cost to fix U0669?
The estimated repair cost for U0669 is $17–67. Actual cost depends on your vehicle, location, and labor rates.
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