Code result
P276C
Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit High
High severity
What it means
The motor supply voltage of the second auxiliary transmission fluid pump is above the operating range.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Alternator regulator failed to limit output
highOne of the most commonly reported causes for this code — check this first.
Wiring shorted to a higher-voltage circuit
lowLess common, but worth ruling out after the more likely causes.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P276C freeNo credit card required