Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer found a problem with the signal from a pump that helps keep the electronics cool in a hybrid or electric vehicle. It's like when a fan stops working and your computer gets too hot.
The P1C39 code is triggered when the vehicle's control module detects an issue with the signal from the electronics coolant pump. This pump is essential for maintaining the proper temperature of the electronic components in hybrid or electric vehicles.
The P1C39 code indicates a malfunction in the signal from the hybrid or electric vehicle's electronics coolant pump. This pump circulates coolant to prevent overheating of electronic components. A signal error could mean the pump is not receiving power, the signal is interrupted, or the pump itself is faulty.
• Check engine light on
• Overheating of electronic components
• Reduced vehicle performance
• Faulty electronics coolant pump
• Wiring issues or loose connections
• Faulty control module
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosing and reporting
Coolant Pump: A device that circulates coolant to prevent overheating
• Check for any loose or damaged wiring to the coolant pump.
• Test the electronics coolant pump for proper operation.
• Inspect the control module for faults.
• Repair or replace any damaged wiring.
• Replace the electronics coolant pump if faulty.
• Reprogram or replace the control module if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$200 - $600
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance checks
• Ensure coolant levels are adequate
• Inspect wiring and connections periodically
Sensor Issue
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult a professional mechanic for accurate diagnosis.
Check with your vehicle manufacturer; this repair may be covered under the powertrain or emissions warranty.
This code has become more common as hybrid and electric vehicles have increased in popularity, highlighting the importance of cooling systems in these vehicles.
High – If not addressed, it can lead to overheating and potential damage to electronic components.
Driving with this issue can lead to further damage and may not comply with emissions standards.
• Vehicle must be in a safe environment for testing.
• Ensure the vehicle is off and cooled down before inspection.
The electronics coolant pump is typically located near the battery or power electronics module, often in the engine bay or under the vehicle.
Q: Can I drive with a P1C39 code?
A: It's not recommended to drive with this code as it can lead to overheating and damage to the vehicle's electronics.
Q: How do I reset the P1C39 code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is resolved to prevent recurrence.
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