Code result
P205E
Reductant Tank Temperature Sensor A Circuit Intermittent/Erratic
Moderate severity
What it means
DEF tank temperature sensor A signal jumps or drops out intermittently — connector or harness issue.
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
Intermittent connector
highOne of the most commonly reported causes for this code — check this first.
Connector with intermittent contact under vibration
lowLess common, but worth ruling out after the more likely causes.
Harness routed against vibrating component
lowLess common, but worth ruling out after the more likely causes.
Related help
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