What are the common causes of P008D?

A short to ground in the fuel cooler pump control wire. Low battery voltage feeding the fuel cooler pump circuit. A failed fuel cooler pump. Corrosion or damage at the fuel cooler pump connector. A fault in the ECM pump driver.

Check the fuse feeding the fuel cooler pump circuit. Test the fuel cooler pump control wire for a short to ground. Command the fuel cooler pump on with a scan tool. Inspect the fuel cooler pump connector for corrosion. Replace the fuel cooler pump if it does not run on command. Clear the code and retest.

P008D

Fuel Cooler Pump Control Circuit Low

System: Fuel and air metering (P code)
Lamp: Check Engine Light
Category: Powertrain - Fuel/Air Metering

What it means

P008D means Fuel Cooler Pump Control Circuit Low.

Where it lives

For P008D, the circuit described runs through the pump. The description of P008D reports a fault at the pump.

Check these first

A short to ground in the fuel cooler pump control wire
Low battery voltage feeding the fuel cooler pump circuit
A failed fuel cooler pump
Corrosion or damage at the fuel cooler pump connector
A fault in the ECM pump driver

What to do next

Check the fuse feeding the fuel cooler pump circuit
Test the fuel cooler pump control wire for a short to ground
Command the fuel cooler pump on with a scan tool
Inspect the fuel cooler pump connector for corrosion
Replace the fuel cooler pump if it does not run on command
Clear the code and retest

Look up another code

Code or symptom

Enter a full code or a symptom. Press / to search. How to read a code

Type a code above, or start from a symptom or a common code.

Updated

Generic SAE J2012 definition. Last updated 2026-10-10.