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
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.
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.
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.
Faulty sensor get it replaced if not check to make sure wire isn't shorting out
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.
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.
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.
In most motion sensor switches you will have three wires. A black, white and red wire. The black and white (neutral) are used for the electronics in the sensor. These connect to the incoming black and white power. Connect the lamp across the red and the white (neutral). When the sensor detects motion the red wire becomes "hot" and the light will go on.
The 1990 Chevrolet Corvette IAT sensor does have two wires. The sensor has a ground wire and a positive wire.
The speed sensor wire is connected to the speed sensor and goes to the speed sensor relay switch. The speed sensor relay switch is connected to the computer by a separate wire.
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.
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.
not sure the exact location of the wire in the harness, but i can tell you that the speed sensor has 2 wire leads, that run directly to the PCM. they are in ports 20 and 21 on the PCM wire connector. Pin 20 is for speed sensor low signal and is Light green and black in color. Pin 21 is for speed sensor high signal and is purple and white in color
Check the temperature sensor. You should be able to find a resistance value in your manual. If it is within specs, check to make sure the wire to the sensor is not grounded. Quick check would be to unplug the wire from the sensor. If the temperature goes down to cold it is probably the sensor. If not, there could be a short in the wire to the sensor. Worst case scenario is that the guage itself is faulty but the sensor or the wire is more likely.
To turn off the sensor light you disconnect a wire under the dash. On my 86 2+2 it was just above the hood release. You'll see a big bundle of wires there and a single wire with a connector in it. On mine there is a label on it that says something like "O2 sensor ... reset at 30,000 and 60,000 ... disconnect at 90,000" Bob
Locate the front wire on the distributer and follow. it will lead to the crankshaft position sensor.
In most cases the single wire sensor runs a temp gauge or temp light. The double wire sensor feeds info to the vehicle's computer and operates relays for the cooling fans. This may or may not be the case for your Saturn.
It could be the brake failure sensor in this year there is a wire that shorts out. All you have to do is find you brake light wire going in and the wire coming out of this sensor. Splice only those two wires and connnect and tape them off. Your lights should all work now.
There could be a sensor wire that is bad or going bad
you may need to replace the sensor for the coolant, there should be a wire connected to it.
P0135 error code refers to the HO2S, Heated oxygen sensor. It is located on the exhast manifold and has a wire from it toward the fire wall near the brake master cylinder. there is a wire connector that can be unpluged and spliced to the new O2 sensor wire pigtail. this may solve the performance prob. Other things to check are vaccum leaks and EGR problems.
I think its the purple wire coming from the Oxygen sensor!