Don't think there was a way to test it so I replaced the switch without having to remove the steering wheel. Two bolts held it on and Advance Auto had an after market switch for $79.00
If you remove the plug from the switch and jump the plug with a paperclip and the lights come on, its your switch.
You can test a light switch without removing it by using a voltage tester or a multimeter to check if there is electricity flowing through the switch when it is turned on.
To test a light switch, turn it on and off multiple times to see if the light responds consistently. You can also use a multimeter to check for electrical continuity when the switch is on and off. If the light does not turn on or off reliably, or if there is no continuity, the switch may need to be replaced.
You've got to use a test light to see if there is electricity getting to the switch. First check to see if it's getting past the fuse - then to the switch with the switch off - then through the switch with the switch on - finally to the blower motor.
With an ohmeter or a self-powered test light. Hook the two leads of your tester to the terminals on the brake light switch. Push down on the brake pedal and if the light stays off or the meter stays at infinity, the switch is bad.
I have to suggest the light switch is bad. A simple voltmeter or test light may help you test voltages. I have to suggest the light switch is bad. A simple voltmeter or test light may help you test voltages.
Switch ignition on connect LED test lamp between terminal 7 of the diagnostic connector and earth after 3 seconds 5 green LEDs will illuminate Switch ignition off.
I guess you'll have to take the door panel off and unplug the motor. Take your test light and clip the lead to ground and poke the sharp into one side of the connector that comes from the switch while you activate the switch while the key is on. If your test light lights up (try both sides of the connector) then your motor is probably bad.
Use a test light connected to the fan motor - if it lights fan motor is bad if it does not light could be fuse, relay, switch, or resistor
most likely the brake light switch burned out. you would find that switch on the brake pedal itself. easy to replace.easy way to test would be unplug it if the lights goes off you found the problem. u need to replace the stop light switch on the brake pedal
use a test light with the alligator clamp attached to a ground and use the probe to test each side of the switch for power
Put a test light or a an ohm meter between the two leads. Push in or out depending on what kind of brake switch you have. If the ohm meter shows continuity or the test light lights up the switch is all right.