Code result
P23E1
EGR C Control Circuit Open
Moderate severity
What it means
A general open-circuit fault on the third EGR valve C control - typically a third EGR loop in heavy-duty engines or specific Euro-7 systems.
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
Open in valve or wiring
highOne of the most commonly reported causes for this code — check this first.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Cracked solder joint inside the module or sensor
lowLess common, but worth ruling out after the more likely causes.
Related help
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