Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the electric pump that helps move the transmission fluid in your car. It's like the pump is working too hard or getting too much power.
The P0C22 code indicates that the electric or auxiliary transmission fluid pump is receiving a higher than expected voltage in the U, V, or W phases of its circuit.
The electric/auxiliary transmission fluid pump is responsible for circulating transmission fluid through the transmission system. The U-V-W phases refer to the three-phase electrical power supply to the pump. A 'circuit high' condition means that the voltage detected in one or more of these phases is above the specified range, which could be due to a short circuit, a faulty pump, or an issue with the power supply.
• Transmission overheating
• Poor transmission performance
• Illuminated check engine light
• Faulty transmission fluid pump
• Short circuit in the wiring
• Defective power supply or control module
Transmission: A system in a vehicle that transmits power from the engine to the wheels.
Circuit: A closed path through which an electric current flows or may flow.
• Check for any other related codes.
• Inspect the wiring and connectors for damage.
• Test the transmission fluid pump for proper operation.
• Repair or replace damaged wiring.
• Replace the transmission fluid pump if faulty.
• Replace or repair the control module if needed.
• OBD-II scanner
• Multimeter
• Wiring diagram
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Ford Fusion Hybrid
• Regular maintenance of the transmission system.
• Ensure proper fluid levels.
• Avoid overloading the vehicle.
Sensor Issue
• Avoid driving the vehicle until repaired.
• Consult a professional mechanic for diagnosis.
Check with your vehicle manufacturer for warranty coverage on transmission components.
This code is more commonly seen in hybrid vehicles due to their reliance on electric pumps for transmission fluid circulation.
High – Continued driving can lead to transmission damage.
Ignoring this code can lead to transmission failure, which may be dangerous while driving.
• Vehicle at operating temperature
• Transmission in drive mode
The electric transmission fluid pump is typically located near the transmission housing.
Q: Can I drive with a P0C22 code?
A: It's not recommended to drive with this code active, as it can lead to transmission damage.
Q: How can I reset the P0C22 code?
A: You can reset the code with an OBD-II scanner, but it's important to fix the underlying issue first.
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