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How to Replace a Backup Light Switch
The backup light switch connects to your transmission and turns on when you shift into reverse. This switch lets drivers know that you are backing up.
How to Replace a Fog Light Switch on Most Cars
A fog light switch goes bad when the lights do not come or are dim or flickering. A blown fuse may also cause the fog light switch to fail.
How to Replace a Cruise Control Clutch Release Switch
The cruise control clutch release switch is faulty if the cruise control will not turn off or shuts off automatically while driving.
How to Replace an AC Clutch Cycling Switch
An AC clutch cycling switch meters low side AC pressure. This switch helps the AC system maintain proper cabin and evaporator temperatures.
How to Replace a Front Axle Engagement Switch on Most Cars
The switch that engages the front axle fails when it gets stuck, does not activate the four-wheel drive, or is difficult to engage.
How to Replace a Power Window Switch
The power window switch fails when the windows are not working properly or not at all and when windows are only working from the master switch.
How to Replace a Fuel Pump Shut Off Switch
The fuel pump shut off switch may be faulty when the Check Engine Light comes on or if the engine suddenly turns off while driving.
How to Replace a Power Steering Pressure Switch
Cars with a hydraulic power steering systems use a power steering pressure switch for hydraulic efficiency. A sign of failure is sluggish steering.
How to Replace a Power Seat Switch
The power seat switch in your car lets you adjust your seat to your preferences. If broken, especially for the driver seat, it should be replaced.
How to Replace a Traction Control Switch
A traction control switch helps you keep control of your wheels on different surfaces. Signs of failure are a Check Engine Light or a broken switch.
How to Replace a Variable Valve Timing (VVT) Switch
An engine has a variable valve timing switch that fails when there is a reduction in engine power or the Check Engine Light illuminates.
How to Replace a Transmission Oil Pressure Switch
A transmission oil pressure switch relays measurements from the pump. If the filter is clogged, this switch puts the transmission into limp mode.
How to Replace a Cruise Control Vacuum Bleed Switch
Cruise control slows when the vacuum bleed switch activates. It fails if the cruise control deactivates automatically or will not hold the speed.
How to Replace a Horn Switch
Your car horn works through the horn button. A faulty button can be hazardous and usually should be replaced by a professional.
How to Replace a Rear Window Defogger Switch
The rear window has a defogger switch that fails if the button does not light up, the rear window does not defog, or the switch does not always work.
How to Replace a Coolant Vacuum Valve Switch
A vacuum line attaches to the vacuum switch in your car as part of the engine’s heating and cooling system. A faulty switch can break your heater.
How to Replace a Combination Switch Assembly
Combination switches include the control of turn signals, windshield wipers, windshield washers, and high beams. Faulty switches can cause accidents.
How to Replace a Windshield Wiper Switch
Car windshield wiper switches keep windshield wiper blades working effectively to keep car windshields clear.
How to Replace a Turn Signal Switch
Turn signals are important for your safety and others the road. A faulty switch will be loose or stop returning once completing a turn.
How to Replace a Cruise Control Switch
The cruise control switch goes bad when the cruise control does not turn on or accelerate. You may need a new switch if the car will not coast.

Related questions

Question
i think my gear shift is broken because it is very loose. and car won't start
It's possible the linkage, or cable, is faulty which could explain the no start because if the linkage is not in the proper position the neutral start safety switch might not work. To determine the exact problem, please request a...
Question
I am looking for window regulator and switch for Acura TSX 2005 passenger size. How much it will cost me?
Hi...both of these repair services are available. To obtain an exact quote for the window regulator repair or replacement, please click on "Get a Quote" at YourMechanic's window regulator repair service page. Similarly, to get an exact quote for the...
Question
1998 Ford Expedition - when I open just the driver side front door the dome light flickers on and off -- why?
The switch in the door frame is probably not making good contact. That is fairly easy to test just by bypassing the switch. If that is not the issue, a simple trace of the dome light circuit will reveal the...
Question
drivers side power window will not go down on 1999 buick Century
Hello, thank you for writing in. The window motor may have failed, and replacing it is a good idea. If you have a voltmeter, you can test that the motor is receiving power when the switch is pressed to go...
Question
Chevy captiva 2014. A/C running warm. Will not recirculate. And even though I have it on face vents, it blows thru them AND bottom
Hello, thank you for writing in. The vehicle is likely having more than one issue at once. The blend doors control the flow of air through the vents and the cabin. If they are unresponsive, you may have one of...
Question
2006 ram 1500 sunroof wont close
Hello, thank you for writing in. Start by checking the fuse again. When there is something wrong with the switch or the sunroof's wiring, it can cause the fuse to short out. This needs to be the main focus to...
Question
I changed the break light switch and now I can not get the truck out of park
Hello, thank you for writing in. The vehicle may be having issues the with ABS system. Considering the timing with the brake light switch, you will want to verify that installation and make sure it is clean, dry, and tight....
Question
My son's honda civic A/C comes on some of the time and does not at other times. It that a wiring issue?
Hello, thank you for writing in. We need to determine what is coming on and what is not. If the air blows but it is warm, you may have low refrigerant. If no air blows at all, and the climate...
Question
Car doors lock but won't unlock with interior button?
Hello, thank you for writing in. Before replacing the switch or actuator, you want to take the switch out and make sure it is not dirty or has a damaged connection. Chances are, the switch is simply not allowing enough...
Question
wipers don't respond to my commands. goes on highest speed and doesn't stop unless fuse is out
Hello, thank you for writing in. The issue is very likely a fault with the wiper switch. While there can be some electrical testing done to verify this, the switches are known to go bad after being used for that...
Question
I have a 2003 Mercedes E3 20 I have change the front signal blinker bulb and it's housing but still it's not flashing is this a co
Hello, thank you for writing in. If just one turn signal is out, you want to look at the electrical wiring going to the bulb's outlet. Make sure when the turn signal is turned on, that you are receiving the...
Question
Want to change from single climate control to duel control 2008 Chrysler 300.
The air conditioning system under the I/P is different between the single zone manual A/C system, and the dual zone automatic A/C system. To make this change you need to remove the I/P, replace the air conditioning system, the I/P...
Question
How do you replace the passenger power seat switch? Having a hard time taking off the Side panel that holds switch in place..
Remove the bolts that hold on the panel to the seat. Then you may have to remove the bolts that secure the seat to the floor to lift up the seat rail and gain access to the rail bolts to...
Question
Car will overheat if I don't have the fan on. When fan is off it doesn't come on to release heat from engine. So the fan is always on.
Check the wiring to the coolant temperature sensor and see if there is power to the sensor switch. If there is no power, then check the cooling fan relay and see if its clicking on. If there is no clicking...
Question
If the power window switch on the front passenger door is out and motor is fine then window should still work from the master?
Hello, thank you for writing in. The master switch is wired independently of the other switches, and it should be able to power the window without the passenger switch working. This is one of the reasons it has been designed...
Question
Can you put a Mazda ignition switch in a Honda
Hi there. Switching the ignition switch depends on the year of the vehicle. Older Honda's and Mazda's could swap out the ignition switch together, but the newer vehicles cannot as they are coded for each vehicle by VIN number. If...
Question
Acceleration automatically.
Hi there. There is an issue with the engine having a vacuum leak and the may be cruise control is coming on to accelerate the engine. First check for any vacuum leaks on the engine. If the engine is running...
Question
Putting in a new battery but the horn, lights, and wipers come on and won't stop.
Check the light switch, the horn switch, and wiper switch. If the switches are not working, then they will need to be replaced. If the switches are good, then there is a loose or broken ground wire on the steering...
Question
Running really rough, not starting usually. Battery light came on. Car overheated. Headlights turn off when I put the high beams on.
Hi there. With the information given, it sounds like you accidentally put 3 bottles of Gas Heet (water / antifreeze remover) into the gas tank. There is to be only 1 bottle of Gas Heet to a full fuel tank...
Question
2000 escalade will not lock with the key in the ignition, it only chimes and doesn't engage lock.
Hi there. If the driver door is not locking with the door ajar and the key in the ignition, that is normal. If all of the doors are not engaging the locks with the key in the ignition and the...

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