Diesel Exhaust Fluid (DEF) Pump Wiring Harnesses
Important: To get started, click the blue "Filter Options" button to select your vehicle and then use the filters to narrow your options.
Important: To get started, select your vehicle on the left and then use the filters to narrow your options.
What is a Diesel Exhaust Fluid (DEF) Pump Wiring Harness?
A Diesel Exhaust Fluid (DEF) Pump Wiring Harness is a device that helps keep your vehicle's emission system running efficiently. It is a set of electrical wires and connectors that connect the DEF pump to your vehicle's engine computer.
What is the purpose of a Diesel Exhaust Fluid (DEF) Pump Wiring Harness?
The main purpose of a DEF Pump Wiring Harness is to ensure that the DEF pump is able to communicate with the engine computer on your vehicle. This allows the DEF pump to receive commands from the engine computer and adjust its operation accordingly.
How do I know if my Diesel Exhaust Fluid (DEF) Pump Wiring Harness is faulty?
If your DEF pump is not performing as expected, it may be a sign that the wiring harness is faulty. Common symptoms of a faulty DEF pump wiring harness are decreased fuel economy, increased emissions, and engine misfires.
What damage can a faulty Diesel Exhaust Fluid (DEF) Pump Wiring Harness cause?
A faulty DEF pump wiring harness can cause a variety of issues with your vehicle, including decreased fuel economy, increased emissions, and engine misfires. It can also cause your vehicle to fail an emissions test.
How do I replace a Diesel Exhaust Fluid (DEF) Pump Wiring Harness?
Replacing a DEF Pump Wiring Harness is a relatively simple process and can be done at home with basic tools. Here are the steps:
- Disconnect the battery.
- Remove the DEF pump from the vehicle.
- Disconnect the DEF pump wiring harness.
- Install the new DEF pump wiring harness.
- Reconnect the DEF pump to the vehicle.
- Reconnect the battery.