Code result
P26CF
Engine Coolant Pump Control Module System Voltage
Moderate severity
What it means
The integrated controller of the smart coolant pump reports a system voltage out of operating range.
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
Weak battery sags voltage under pump load
mediumA plausible cause — test and verify before replacing parts.
Alternator output out of regulation
mediumA plausible cause — test and verify before replacing parts.
Related help
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