1987 rear brake lights stay on with the ignition switch off.


Asked by Jun 17, 2013 at 03:28 PM about the 1987 Toyota Tercel 2 Dr STD Coupe

Question type: Maintenance & Repair

The brake lights stay on with the ignition switch off and all lights turned off. What causes this? I was informed that it is the micro switch for the brakes. If so, where is that located?

3 Answers


Usually behind brake pedal... The switch probably isn't faulty. Have you gotten your brakes replaced recently? Are they old and worn? If your brakes are old and/or your fluid is low, there is sometimes not enough pressure in the system to hold the pedal all the way up, so sometimes the pedal sinks down a little and activates the switch.. Try topping off your brake fluid reservoir.


Thank you. I will have to check that. It is a car that a neighbor is planning on giving me and I haven't had a chance to dig into it yet.


Check and replace broken/missing plastic bumper between brake armature and brake light switch. The part is a couple of bucks at the parts store. The tools that you need for installation are one hand to hold brake down while the other hand inserts bumper into place. You didn't need to replace the switch, just the plastic part that gets beat on every time you step on the brake. Who'd a thunk it?

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