P276C

Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine light comes on
Gear shifting problems
Unusual noises from the transmission area
Reduced transmission efficiency
Transmission fluid overheating

Causes

Auxiliary pump motor malfunction
Damage to the pump wiring harness
Short circuit in power supply
Problems with the transmission control module
Corrosion or poor contact in connectors

How to Fix

Check the condition of the wiring harness and pump connectors
Measure the resistance of the pump motor
Check the voltage in the pump power circuit
Replace faulty pump motor if necessary
Reset the error code and check the system operation

Related codes

P276B P276D P2770