Code result
P0666
Control Module Internal Temperature Sensor A Circuit
Moderate severity
What it means
A general circuit fault on the ECU's internal temperature sensor A - the sensor that monitors module operating temperature for thermal protection.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Internal sensor fault
highOne of the most commonly reported causes for this code — check this first.
Related help
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