Would you please explain a little more as to location, function, etc, it will help us all to aid you better.
Most likely wheel speed sensor problem - either broken wire or a problem with the sensor/hub. To find out which one, you need to read the ABS codes.
There's no universal color code for oxygen sensor wiring. Buy the right sensor, period. If you're buying a generic sensor for your car (possible, but there are still many different kinds) and need to splice the wires from the new sensor to the car, usually the black wire is the ground and the other wire is "hot." With three-wire sensors, try to find a wiring diagram online to match up the colors. It's risky using a voltmeter or test light to find the hot wire(s), because you could fry your computer.
turn the round gray part behind the light, remove the wire and pull the bulb out, reverse to reinstall
In order to install a Real Time GPS Tracker in your vehicle you need to find an always on 12v wire (consult you car's manual) and hardwire your GPS device to the car by attaching it to that 12v wire.
The following tools are needed to install a motion sensor light: 4-in1 screwdriver, voltage tester and a wire stripper. Also needed is a motion sensor light, elctricians tape and plastic.
Faulty sensor get it replaced if not check to make sure wire isn't shorting out
look underthe truck starting from the catalyctic converter in direction of the engine. There is at two places ,wires which enter in the exhaust pipe. It's like spark plugs with electric wire. Very simple to change.
Light Blue/Black wire is the sensor ground, Tan/Brown wire is the signal output and the Orange wire is the 8 volt power feed from the PCM.
In the radiator there is a sensor about 1/3rd of the way down from the top with 1 wire connected to it. When the sensor goes bad the low coolant light stays on. On our GM products replacing the sensor in the radiator turns the light off. The wire from the sensor to the dash light could have a bare spot in it and be touching metal witch would turn it on but I have never seen that yet. It would pay to check this also.
Stop light sensors are a loop of wire that is buried in the pavement and controls the traffic light. The sensors are able to detect the traffic that is waiting at the light.
Find the sensor... Usually there are 3 wires running into the sensor. 1 HOT, 1 GROUND, and 1 return wire. Just short the GROUND and the RETURN wire together with a splice.
Remove the light sensor and place a switch between the red and black wires. The black wire is one leg of the "hot" pair and the load is connected to the red wire. This will now switch the black hot through the red wire that goes to the load.