Mopar 56045043AE Switch-Stop Lamp

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The brake light switch is located on the brake pedal mounting bracket and activates the brake lights when the pedal is depressed. To access the switch, remove the under-dash panel and the heater/air conditioning duct. If the brake lights are not working, check the fuse first. If the fuse is good, check for voltage to the switch on the feed wire. If there is no voltage, repair the wire between the switch and the fuse box. If voltage is present, depress the brake pedal and check for voltage at the output wire terminal. If there is no voltage, replace the switch. If voltage is present, check for power on the brake light wires at the tail light housings. If there is no voltage, repair the circuit between the switch and the brake lights. If voltage is present, check for a bad ground by using a jumper wire connected to a good ground and probing the ground wire terminal at the tail light connector. If the brake lights go on, repair the ground circuit. Keep in mind that the brake light bulbs could be burned out, but the likelihood of all the bulbs being burned out is very slim. To replace the brake light switch, depress and hold the brake pedal, then rotate the switch counterclockwise and remove it from the mounting bracket. Unplug the electrical connector and remove the switch from the vehicle. Pull the switch plunger outward until it is fully extended. Depress the brake pedal and install the switch in the bracket by aligning the index key on the switch with the slot in the bracket. Rotate the switch clockwise to lock it into place. Ensure that the small lever on the side of the switch is angled approximately 45-degrees. If it is parallel with the electrical connector, a new switch will be required. Allow the brake pedal to come to rest and move the lever on the switch until it is parallel to the electrical connector. Finally, plug the electrical connector into the switch.