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 a part in the car that helps control the engine's temperature is getting too hot or using too much power.
The P23C6 code is triggered when the engine control module (ECM) detects that the current or temperature in the control circuit for the Engine Coolant Bypass Valve C is too high.
The Engine Coolant Bypass Valve C is part of the vehicle's cooling system, which helps regulate the engine temperature by controlling the flow of coolant. When the ECM detects a high current draw or temperature in the control circuit, it sets the P23C6 code. This could indicate a problem with the valve itself, the wiring, or the ECM.
• Check Engine Light on
• Engine overheating
• Poor engine performance
• Faulty Engine Coolant Bypass Valve C
• Wiring issues in the control circuit
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the Engine Coolant Bypass Valve C for proper operation.
• Replace the Engine Coolant Bypass Valve C if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly check and maintain the cooling system.
• Inspect wiring and connectors for wear.
• Ensure the ECM firmware is up to date.
Sensor Issue
• Do not ignore the Check Engine Light.
• Regular maintenance can prevent such issues.
Check with your vehicle manufacturer for specific warranty coverage.
This code has been associated with vehicles that have complex cooling systems and advanced engine management.
High – This issue can lead to engine overheating, which can cause severe engine damage.
Driving with an overheating engine can be dangerous and may lead to legal issues if it causes an accident.
• Engine at operating temperature
• Vehicle stationary or in motion
The Engine Coolant Bypass Valve C is typically located near the engine block, integrated into the cooling system.
Q: Can I drive with a P23C6 code?
A: It's not recommended to drive with this code as it can lead to engine overheating.
Q: How do I reset the Check Engine Light?
A: After repairs, use an OBD-II scanner to clear the code and reset the light.
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