P2601 Fault Code

Coolant Pump Control Circuit Range/Performance

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2601 fault code indicates an issue with the coolant pump control circuit's range or performance. This generally relates to the electric coolant pump that is responsible for circulating coolant through the engine and maintaining optimal operating temperatures. If the circuit is not functioning correctly, it can lead to overheating and might affect overall engine performance.

What are the symptoms of the P2601 code?

Common symptoms associated with P2601 include:

• Engine overheating due to inadequate coolant circulation.
• Warning lights on the dashboard indicating engine temperature issues.
• Decreased fuel efficiency as the engine struggles to maintain optimal performance.
• Unusual noises from the engine compartment if the coolant pump is failing.

What causes the P2601 code?

Several factors can trigger the P2601 code, including:

• A faulty coolant pump that is malfunctioning or has failed.
• Wiring issues such as short circuits, open circuits, or damaged connectors in the coolant pump circuit.
• Problems with the Engine Control Module (ECM) not properly controlling the coolant pump due to software glitches or internal failures.
• Poor electrical contacts leading to insufficient power supply to the coolant pump.

How to fix P2601?

To resolve the P2601 code, consider the following steps:

• Inspect the coolant pump for any signs of damage or wear, and replace it if necessary.
• Check the wiring and connectors in the coolant pump circuit for corrosion, frayed wires, or other damage, repairing or replacing as needed.
• Test the coolant pump operation by applying direct power to ensure it's functioning correctly.
• If the pump and circuit are in good condition, consider updating or reprogramming the ECM to address any software-related issues.