Question about 2001 Yamaha YZF-R1

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Rear brake light wont work when bake break is pushed only when front is pushed it works

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Examine the rear brake pedal and linkage....there should be a light spring that pulls on the brake switch when you push the pedal down...possibly the spring broke and fell off.
If all is well...there should be a connector nearby for the switch...usually 2 wires....12 V power in on one, and power out to brake light on the other. With a multimeter, unhook connector and with key should have 12 V on one of the two wires in the harness...if you don't...there is a harness issue.
If you have power to the switch, now test for continuity (ohms) across the unhooked switch wires ...should be open (no continuity ) with pedal up, and when you press down pedal...the switch should close and show very low ohms continuity. If you cannot get continuity...normally there is an adjustment to move3 the switch out further so the spring from the pedal pulls on the switch plunger more...if your are unable to get continuity by adjusting switch mount..replace switch..

Posted on Mar 22, 2011


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1994 fatboy brake light staying on

Hi Anonymous, your front brake lite switch button is probably not getting pushed back into the off position. Remove your right handelbar switch housing and push the plastic button in and out with your finger to see if the light goes off and on. If not disconnect the wires to your rear brake lite switch and check the front switch button again. If the button works then reinstall the switch housing and push it towards the master cylinder hard and hold it with one hand and retighten the screws with the other. If you hook up rear brake lite switch wires and the brake lite comes on replace the switch. For a wiring diagram for your turn signals go to: Good luck

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This is in reference to my 2005 Dodge Neon. My brake light is on and the break petal pushes really easy (almost to the floor) before it grabs; however it only feels like the from brakes are grabing,...

When the rear brakes were done, the entire brake
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1 Answer

My running lights work but by break light wont

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Why wont my brake light work when I push the rear brake but will when I push the front brake? I checked the switch with an ohm meter and switch is open without pushing pedal and when pedal is pushed it...

Oh yeah, I've run into this before. The ohm meter says the rear brake switch is good but the light says different because it won't light. The switch is indeed bad. What happens is the switch says it's good when checked with the ohm meter because the meter is designed not load the circuit being tested. The light on the other hand, puts a load on the switch and the resistance of the switch will not allow enough current to pass through. Replace the rear brake switch and your light will probably work.

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When i press on the rear break, the break light does not come on. break light will come on with the front brake engaged. have checked the bulbs.

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You can find the switch by following the metal line that comes out of the rear of the rear brake mastercylinder. It'll have two wires connected to it.

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