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 part of the car that helps keep the battery cool. It's like when a fan stops working and your computer gets too hot.
The P0C47 code indicates that the control circuit for the Hybrid/EV battery pack coolant pump 'A' is open or not functioning properly.
The P0C47 code is set when the Powertrain Control Module (PCM) detects an open circuit or a malfunction in the control circuit of the battery pack coolant pump 'A'. This pump is responsible for circulating coolant to maintain the battery pack temperature within optimal limits.
• Check Engine Light (CEL) illuminated
• Overheating of the hybrid/EV battery pack
• Reduced vehicle performance
• Faulty battery pack coolant pump
• Open or shorted wiring in the pump circuit
• Faulty PCM or control module
PCM: Powertrain Control Module
CEL: Check Engine Light
• Inspect the wiring and connectors for damage or corrosion.
• Test the battery pack coolant pump for proper operation.
• Check the control module for fault codes and functionality.
• Repair or replace damaged wiring or connectors.
• Replace the faulty battery pack coolant pump.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wiring diagram
$200 - $800
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain the cooling system.
• Ensure all electrical connections are secure and free of corrosion.
• Follow manufacturer maintenance schedules.
Control Circuit Issue
• Avoid high-speed driving until the issue is resolved.
• Monitor battery temperature using vehicle diagnostics if possible.
Repairs may be covered under the vehicle's hybrid system warranty.
This code has become more common with the increased use of hybrid and electric vehicles.
High – An overheating battery can lead to reduced performance and potential damage.
Operating the vehicle with an overheating battery can lead to safety hazards and should be addressed promptly.
• Vehicle in 'Ready' mode
• Battery pack at operating temperature
The battery pack coolant pump is typically located near the hybrid or EV battery pack.
Q: Can I drive with a P0C47 code?
A: It's not recommended to drive for long periods as it may cause battery overheating.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspection of the cooling system can help prevent this issue.
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