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 third coolant pump isn't working properly. It's like when a fan in your computer stops spinning and your computer gets too hot.
The P2C48 code is triggered when the engine control module (ECM) detects that the control circuit for the third coolant pump is not performing as expected or is stuck off.
The P2C48 code indicates a performance issue or a failure in the control circuit of the third coolant pump, which is responsible for circulating coolant to manage engine temperature. This could be due to electrical issues, mechanical failure, or a malfunction in the control module.
• Engine overheating
• Check Engine Light illuminated
• Reduced engine performance
• Faulty coolant pump
• Damaged wiring or connectors in the control circuit
• Malfunctioning engine control module (ECM)
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Check for any other related trouble codes.
• Inspect the wiring and connectors for damage or corrosion.
• Test the coolant pump operation and control circuit.
• 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
• Periodic inspection of electrical connections
• Using high-quality coolant
Engine Performance
• Do not ignore the Check Engine Light.
• Have the cooling system checked regularly.
• Address overheating issues promptly.
Check with your vehicle manufacturer for specific warranty coverage related to engine components.
This code has been associated with vehicles that have complex cooling systems with multiple pumps.
High – Engine overheating can cause severe damage if not addressed promptly.
Driving with an overheating engine can be dangerous and may lead to engine failure.
• Engine at operating temperature
• Vehicle stationary
The coolant pump is typically located near the front of the engine, connected to the engine block.
Q: Can I drive with a P2C48 code?
A: It is not recommended to drive with this code active, as it can lead to engine overheating.
Q: How do I reset the P2C48 code?
A: After repairs, use an OBD-II scanner to clear the code, but ensure the issue is resolved first.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.