P26BE: Engine Coolant Bypass Valve D Control Circuit Low
Standardized SAE J2012 code · P26xx — Computer and output circuits
What does P26BE mean?
Voltage on the fourth coolant bypass valve control line is below the expected window. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Control wire shorted to ground
- Medium Internal short in solenoid coil
- Low Connector pins corroded - high contact resistance
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P26BE on the same make and model first.
P26BE in the community
Ask about P26BENo one has posted about P26BE yet
Share your vehicle, the tool you used and what you tested — the first thread helps everyone who searches for this code.
Describe your P26BE problem