Auto Electrical Repair | in Hamilton, ON | NAPA Autopro-Upper James - NAPA Autopro-Upper James

What to Know about a Wiring Harness 

Auto Electrical Repair in Hamilton, ON

What is a Wiring Harness?

If you own a vehicle, you’ve likely heard the term “wiring harness” float past you in an automotive conversation at least once. While the term may, therefore, be familiar, the specifics may not be. That’s where NAPA Autopro-Upper James in Hamilton, Ontario, can help. We’re glad to explain the concept and provide any auto electrical repair your transportation may need. A wiring harness groups electrical wires, cables, and connectors. They’re bundled together to function as a single entity, transmitting signals and power between parts of your car. That enables both basic functions that we take for granted on modern vehicles and modern features found on the newest models. The harness supplies power to its area(s), allowing for organized pathways that can move data and electricity. Harnesses accomplish this more efficiently than individual wires by allowing for organized bundles of protected wires that are easier and quicker to install than connecting many individual wires. Protective covers also make the wiring last longer by fending off heat, moisture, and rubbing from other components.

More than One Type

Because modern transportation is so complex, your automobile likely has more than one wiring harness. Most references to the wiring harness are actually about the engine harness. It connects the engine, sensors, fuel injectors, and alternator. The body or chassis harness connects the major parts of your car, including the lights, doors, and outside sensors. There’s also a main harness often intertwined with the body/chassis harness to connect all systems. Beyond those, multiple areas/components have their own harness. There’s an airbag harness to control deployment of this safety feature in an emergency, a door harness to regulate locks and power windows, a roof harness for a sun/moon roof and interior reading lights, and a dashboard/instrument panel harness to power switches, gauges, and comfort/entertainment features.

Signs of Trouble

Depending upon the type of wiring harness malfunctioning, you may notice various warning signs. Watch for flickering/dimming lights, poorly functioning/nonfunctioning locks/windows/electronics, blown fuses, engine misfires/loss of power, or burning smells. If you notice any of these, our certified technicians can help. You can feel confident knowing that a solid two-year/40,0000-km warranty covers repairs. Also, take advantage of the available drop-off/pick-up and local shuttle service. You can also enjoy WiFi, coffee, and water while you wait here. At the first sign of trouble, call the shop that’s been serving local motorists since 2016, NAPA Autopro-Upper James.