Well, your first problem is that the Ford Focus wasn't made until 2000. Maybe you have a different car altogether.
As far as I know , the multi-function switch is the switch for your turn signals , flash to pass , hazard lights etc . It is inside the steering column
if you mean: "why do hazard lights flash when brakes are on", then the answer is because vehicles are equipped with a hazard light relay that supercedes the brake lights. This way, slow moving vehicles can operate under hazard lighting.
To make the hazard lights alternating flash, a kit called a wig wag is added to the flasher system. To have actual strobe lights, then a strobe kit with its own light has to be installed.
it may be a loose connection on the back lights give a good firm push on the connectors
Does your hazard lights only work when you turn the flashers on and the turn signal on at the same time? GM is known for having a multi-purpose switch... this switch controls your lights, turn signals, hazard lights and high beams... sometimes cruise control too... well anywho, sometimes that switch is partially broken... I recommend hooking a multi-meter to the wires that hook the multi-switch up and test all the functions of the switch... but I guarantee if you put a new multi-switch on the car that your hazards lights will function properly... I also recommend buying the part through an after-market company because it is cheaper...
what car have you got?
There is a short in the wires in the turn signal circuit. The combination switch in the steering column is a good place to check. Do the hazard lights still flash?
you have a short to ground . have it check soon ! could be a door switch .
If this occurs under heavy braking (i.e. ABS has kicked in), then the hazard lights will start flashing. They will turn themselves off after a few seconds of normal driving. If it occurs whilst generally driving along, it could be a bad connection in the hazard light switch, or something more technical inside the car itself.
The turn signals and hazard lights on this year Beetle are controlled by the hazard switch. Dealers refer to this switch as a hazard/flasher module. When the switch fails, the lights typically flash once or twice then stop due too faulty internal contacts. The switch/module is just like the old style turn signal flasher that older cars used years ago, only the cost is a little bit more expensive. This is a common part that fails on this vehicle.
A flasher relay interrupts power to the hazard lights making them flash. The relay can be a dedicated relay or it can be the same relay that operates the turn signals. Depends on the make, model, and year of the vehicle.
Replace the turn signal flasher relay.
If the lights come on but do not flash, replace the flasher relay. If they will not come on check the fuses.
Bad connection somewhere, switch, relay or ground.
The hazard flasher on a 2001 Toyota Camry is located under the dash, near the hood release. It triggers the hazard lights to flash and regular intervals to notify other drivers.
More than likely the Flasher Relay is defective and needs replacement. The Flasher Relay is located on the top of the steering column, on the multifunction switch. It is not easy to find but rest assured it is there. If the lights come on but just do not flash then the flasher relay is the problem. If the lights do not come on at all, check the fuse.
the hazardlight switch is where the blinkers flash,take the vent out under the hazards switch then reach up in there behind the haz. switch
You have a faulty headlight switch. It's too much of a load on the headlight switch to run all the lights at the same time. You should run a separate light switch for the running lights.
Check all fuses. Wait until dark. Park where you could see the glow of the brake lights from inside the truck, were they to illuminate. Press and hold the brake pedal. Wiggle the turn signal switch about for a few seconds. If this causes the brake lights to work or to flicker, replace turn signal switch. Move tilt steering up and down. If this causes the brake lights to work or to flicker, replace turn signal switch. Switch 4-way flash hazard lights on and off a few times. See if that does anything interesting. Check for Body codes.
If you just barely touch the brake pedal the brake lights will come on but the brakes will for all intent and purpose not be applied.
When you say blinker I assume you mean the trafficator/Hazard light?? If so then it is actually the Hazard switch which is located on the panel by the gear lever.
Get into car and close the doorsInsert key and turn ignition from off to ACC and back off five timesOn fifth turn, the hazard lights will flash onceTurn ignition OFFPress button on the remote controlHazard lights will flashRemove the key and test that the remote locks
I assume your talking about the indicator lights on the front. Yes, the lights do flash rapidly and constantly, not so much violently though ;-).
Theres a bad earth due to corrosion.
Answer You might want to check your flasher relay which is under the dash.