Manipulate alligator clips for easier testing.
The pivotal to diagnosing electrical problems is to applicability a channels of elimination combined with testing. A worthy flash on and the force to concentrate on one dispute at a age Testament be accommodating. Distinguish the doozer consummate copper wire. Remove the immense certain copper wire from the battery and district it where its extent cannot touch anything metal. Verify the acceptable terminal is completely vacant of any wires..
Instructions
1. Place on your safety glasses beginning. Acquisition the motorcar battery. Button down the extensive atramentous balky ground wire. Remove it from the battery. Sensitive how circuits are wired Testament come easier as the grindstone progresses and is not necessarily a needed skill to begin with. Conclusive, refusal and ground are terms that essential to be understood. Basic electrical and mechanical tools and skills are needed.
2. Acquisition the electrical Slogan that is not working.Visually look the wiring, as ancient wires can annex evil insulation. Button down the positive wire and unplug it from the Slogan. Connect the cold wire to the skilled sway on the volt/ohm metre using an alligator clip. Distinguish the con wire on the Slogan and unplug it. Connect the negative wire to the cynical escort on the volt/ohm metre using an alligator clip.
3. Place the volt/ohm meter scale on Twelve volts dc. Place the volt/ohm meter where it can be seen from the battery. Trace the positive wire to the fuse panel and Stare at the fuse to see if the small bare wire in its middle is melted. Replace the fuse if necessary. Trace the negative wire to the vehicle's ground strip and verify the connection is tight.
4. Go to the car battery. Connect the large positive wire back to the battery. Connect the large black negative ground wire back to the battery. Turn on the switch that controls the device. Stare at the volt/ohm meter and verify it is showing Twelve volts.Turn off the switch that controls the device. Disconnect the negative ground wire from the battery. Disconnect the positive wire from the battery and place it where its end cannot touch anything metal.
5. Replace the electrical device if the meter read Twelve volts. Completely replace the ground wire with a new one if it did not read Twelve volts. Repeat the test at the battery after connecting the positive cable back on the battery first and then the negative ground wire back on the battery and turning on the switch. Stare at the volt/ohm meter and verify it is showing Twelve volts. Turn off the switch. Disconnect the negative wire from the battery. Disconnect the positive wire from the battery and place it where its end cannot touch anything metal.
6. Completely replace the positive wire to the fuse box if it did not read Twelve volts. Repeat the test at the battery after connecting the positive wire back on the battery and the negative wire back on the battery and turning on the switch. Verify the volt/ohm meter is reading Twelve volts.
7. Turn off the switch that controls the device. Disconnect the negative wire from the battery. Disconnect the positive wire from the battery and place it where its end cannot touch anything metal. Disconnect the ohm meter leads and reconnect the positive and negative wires to the device by plugging them in if the volt/ohm meter read Twelve volts.
8. Connect the large positive wire back to the battery. Connect the large negative wire back to the battery.Turn on the switch that controls the device.Test the device to see if it is operating properly.
