How do you test a light switch to see if it works?
- To test a single pole light switch, touch one multimeter lead to each of the side terminals. When you flip the switch on, the multimeter should show a reading of 1.
- To test a three-way switch, hold one multimeter lead to the common screw, and touch the other lead to one of the travelers.
Why are the lights on my license plate not working?
Another possibility is a bad ground. Black wire out of the lamp socket is the ground. Both ground wires connect together with trailer wiring (if any) grounds and run to a point on the left side of the body. You will have to follow the wires to the attachment point to check for corrosion or tightness.
How to find a fault in a lighting circuit?
You have to find where the lighting circuit loops (at the light fitting, at the switch, or at a junction box) then separate each leg and test each leg individually for IR with both ends of the leg disconnected. Tedious, but it’s the only way to find the fault.
Why are the brake lights on my car not working?
Changed our bulb still did not come on but one on right does work. Took bulb from left and put it on right and bulb works but bulb will not work on left side. Also verify the fuse for the brake lights. I was driving around without the brake lights, only with the upper one.
How old is the fault on my lights?
Unsure as to age, suspect 10 – 15 years but cannot determine. Think it may be a DIY job by last owners of the house, and there are no test certs. Current owners have been in for over two years, and fault has only appeared in the last couple of weeks.
Why are my license plate lights not working?
License Plate Lights HELP! The biggest problems I’ve had with my VW’s has always been electrical. Either bad grounds, or like my ’04 Golf all the dang wires going to the hatch broken in their harness. On the Golf, now, the license plate lights have chosen to stop working.
Why is my light switch not working properly?
Finally, your malfunctioning light switch could be the result of a fault circuit cable. You can use a circuit tester to assess your light switch and see if there are any interrupted connections causing your light switch to not work properly.
Can a tripped fuse cause a light switch to not work?
Fuse burnout and tripped circuit breakers can contribute to light switch malfunctioning, too. Because of this, it’s important to take a look at your circuit breaker before you go ahead and buy a whole new light switch. Sometimes, you can replace a fuse and correct the situation. There is a caveat here, though.
How does a golf license plate light work?
OK, I traced the Golf LPL (license plate light) circuit from the bulbs to the headlight switch. Its a little different than the one for the Jetta, but close. For the Golf, working back from the LPL to the headlight switch: 1. The positive power goes to both bulbs through a 0.5 MM green/grey wire.