P276C
Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit High
P276C is an OBD-II diagnostic trouble code meaning: Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit High. Common causes: auxiliary pump motor malfunction, damage to the pump wiring harness. Estimated repair cost: $56–167.
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
Error P276C by Vehicle Brand
FAQ
What does the P276C code mean?
P276C is an OBD-II diagnostic trouble code that indicates: Electric/Auxiliary Transmission Fluid Pump B Motor Supply Voltage Circuit High
What causes a P276C error code?
The most common causes of P276C include: Auxiliary pump motor malfunction; Damage to the pump wiring harness; Short circuit in power supply; Problems with the transmission control module.
How do I fix a P276C diagnostic trouble code?
To fix P276C: 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. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P276C?
Limited driving only, diagnose soon
How much does it cost to fix P276C?
The estimated repair cost for P276C is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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