P008C Fault Code

P008C OBD-II Trouble Code Short Description

Fuel Cooler Pump Control Circuit Open

What does trouble code P008C mean?

The P008C fault code indicates a problem with the Fuel Cooler Pump Control Circuit being open, meaning there is an interruption in the electrical circuit that controls the fuel cooler pump. This can lead to issues with the fuel system's cooling capacity and efficiency.

To diagnose and solve this issue, you may need to:

  1. Check the wiring and connectors related to the fuel cooler pump circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.

  2. Test the fuel cooler pump itself to ensure it is functioning properly. If the pump is faulty, it may need to be replaced.

  3. Clear the fault code from the vehicle's ECU (Engine Control Unit) and monitor for any recurring issues to confirm the problem has been resolved.

It is essential to address this fault code promptly to prevent any potential damage to the fuel system or engine performance issues. Ignoring this fault could lead to decreased fuel efficiency, rough idling, or even engine stalling.


What are the symptoms of the P008C code?

  • Check engine light illuminated
  • Engine misfiring
  • Reduced engine performance
  • Fuel economy decrease


What causes the P008C code?

There are several possible causes for the P008C fault code on cars:

  • Faulty fuel cooler pump
  • Open or short circuit in the wiring harness
  • Poor electrical connections
  • Faulty fuel cooler pump relay
  • Issues with the powertrain control module (PCM)

Possible Solutions

How to fix P008C?

Here is how to fix the P008C fault code on cars:

  1. Check the wiring and connectors for any damage or corrosion.
  2. Inspect the fuel cooler pump for proper operation and connections.
  3. Test the fuel cooler pump control circuit for continuity and proper voltage.
  4. Replace any faulty components found during the inspection.
  5. Clear the fault code and test drive the vehicle to ensure the issue has been resolved.