U0667
Lost Communication With Engine Oil Temperature Sensor A
U0667 is an OBD-II diagnostic trouble code meaning: Lost Communication With Engine Oil Temperature Sensor A. Common causes: open or short circuit in the sensor circuit, oil temperature sensor malfunction. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Is On
- Deterioration of vehicle dynamics
- Increased fuel consumption
- Incorrect oil temperature readings on the dashboard
- Emergency engine operation
Causes
- Open or short circuit in the sensor circuit
- Oil temperature sensor malfunction
- Poor contact in the sensor connector
- Wiring harness damage
- Engine ECU malfunction
How to Fix
- Check the continuity of the oil temperature sensor circuit
- Inspect the sensor connector and contacts for oxidation or damage.
- Check sensor resistance at different temperatures
- Replace the oil temperature sensor if necessary
- Scan the ECU for other errors
Related codes
Error U0667 by Vehicle Brand
FAQ
What does the U0667 code mean?
U0667 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Engine Oil Temperature Sensor A
What causes a U0667 error code?
The most common causes of U0667 include: Open or short circuit in the sensor circuit; Oil temperature sensor malfunction; Poor contact in the sensor connector; Wiring harness damage.
How do I fix a U0667 diagnostic trouble code?
To fix U0667: Check the continuity of the oil temperature sensor circuit. Inspect the sensor connector and contacts for oxidation or damage.. Check sensor resistance at different temperatures. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0667?
Limited driving only, diagnose soon
How much does it cost to fix U0667?
The estimated repair cost for U0667 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat