How To Find A Short In A Car

However if the draw does not create enough current to blow a fuse than we have to find out which circuit its in to fix it. Testing for continuity allows you to find the short in an electrical circuit without dismantling the entire system.

How To Find Short Circuit In Your Car Truck Youtube

How to find a short in a modern car fast and easy The correct way Watch later.

How to find a short in a car. Take a good visual examination of all the wires and connectors on the circuit. Focus your attention on that section of the wire harness. Find the short with the meter by sliding the meter along the wiring harness.

For testing purposes we will select 2A or 200mA in the amp section of the meter. Your cars electrical system is massive and complicated. A short is a symptom of a break or fray in the wire and prevents an electrical system from functioning properly.

Once you have lowered the scale all the way up to the number zero itself and the meter has not found a draw there is no existence of a short circuit. Many car batteries are 126 volts. When it stops swinging youre at the short.

Trying to find a short in the system might sound like a job for a professional but in this video you will learn how you can use an 8 test light to locate a shorts in your cars electrical system. In order to accurately detect the parasitic draw you need to begin with a fully-charged battery. If the meter reads O volts the short is located between the switch and one of the loads or the switch itself.

Gripping the wire harness and flexing it may break the short circuit so you can identify at. If a connector is loose fitting it can generate heat and cause the fuse to blow. Pop the hood and locate your vehicles battery.

How to find a short in a modern car fast and easy The correct way - YouTube. The reading for a normal vehicle with no parasitic draw can range from 10mA to 50mA depending on the manufacturer and the amount of computers and features the vehicle has. It will also teach you how to fix it if the problem is the cigarette lighter now more commonly.

If the test light goes out or the meter well you get the idea you know the short circuit is somewhere between the switch and the load. How to Diagnose Car Electrical Problems by Tracing Voltage Drops Diagnose electrical problems by chasing voltage drops instead of the old-fashioned way --. However if at any time it shows a draw.

For example if the meter reads zero again reset it to amperage of 8 and check it again. If playback doesnt begin shortly try restarting your device. Turn off the switch and check your meter.

How to Find a Short in your Car. Use a vehicle battery charger to charge the battery to 100. Watch the needle swing back and forth.

If there is a spot on the wire that is dark or swollen this is a good indication that this is where the short is. If our meter doesnt read voltage the short is located either in the load itself perhaps a bad motor or in the section of the circuit after the load. Obviously if you find a blown fuse replace it turn the key on and the fuse blows immediately youve found the circuit within your cars electrical system that the short is in.

This is where we can see the parasitic draw on the battery. Step 1 Turn the multimeter settings knob to continuity.

How To Find An Electrical Short On Most Any Vehicle Backyardmechanic