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 thinks the pump that helps cool the engine when it's just started isn't working right.
The P2C37 code is triggered when the Engine Control Module (ECM) detects that the cold start engine coolant pump is not performing as expected.
The cold start engine coolant pump is responsible for circulating coolant through the engine during the initial start-up phase to help the engine reach optimal operating temperature quickly. If the ECM detects that the pump is not operating within the expected parameters, it will set the P2C37 code.
• Check Engine Light is on
• Engine takes longer to warm up
• Poor fuel economy
• Faulty coolant pump
• Electrical issue with the pump circuit
• Faulty ECM
ECM: Engine Control Module
Coolant: A fluid that absorbs heat from the engine and dissipates it through the radiator.
• Check for any other related codes and address them first.
• Inspect the coolant pump for any signs of damage or failure.
• Test the electrical connections and wiring to the coolant pump.
• Replace the faulty coolant pump.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance of the cooling system
• Timely replacement of coolant
• Regular inspection of electrical connections
Engine Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if you notice any symptoms.
Check with your vehicle manufacturer for warranty coverage on the coolant pump.
The P2C37 code has been associated with issues in vehicles with advanced cooling systems designed for better fuel efficiency.
Moderate – While the vehicle can still operate, it may experience reduced performance and efficiency.
Ignoring this code may lead to further engine damage or reduced fuel efficiency.
• Engine must be cold
• Vehicle should be at idle
The cold start engine coolant pump is typically located near the engine block and connected to the cooling system.
Q: Can I drive with a P2C37 code?
A: While you can drive with this code, it's best to address it soon to avoid potential engine performance issues.
Q: What happens if I ignore the P2C37 code?
A: Ignoring the code can lead to poor fuel economy and increased engine wear over time.
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