Make sure the ignition is on.3. Test the other wire.
1. Turn the ignition on the automobile to "on." Effect not derivation the engine.
2. Bag a comp glassy -- a quota of Accoutrement used to detect electrical voltage -- to corroboration the wires. Two wires are connected to the brake switch: one to bent on and one to capacity off. Proof the fundamental wire using the test light and urgent the brake pedal. Provided it lights up, then it is skilled; whether it does not then it needs to be replaced.
The brake lights are connected to a switch near the brake pedal, thence when you process on the pedal, this switches on the lights. The goal why the brake lights won't turn off could be related to the switch jamming or getting stuck.Instructions
If the test light does not light up, then this wire needs replacing. If both wires lit the test light up, then the fuse will need to be checked.
4. Check the fuse located either under the dashboard or under the hood in a power distribution center. Using the test light, test both sides of the fuse.
