Code result
P2B59
Engine Coolant Flow Control Valve Control Circuit/Open
Moderate severity
What it means
The engine coolant flow control valve reports a control circuit/open condition. Coolant routing between engine and radiator branches cannot be commanded as expected.
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 control wire
highOne of the most commonly reported causes for this code — check this first.
Open valve motor
mediumA plausible cause — test and verify before replacing parts.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Related help
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