My signal lights do not work.. And my brake lights do not work. In addition to that the speedometer lighting is not working properly.. It is of low intensity..

. Remove and fully charge the battery and test the alternator. Clean battery terminals, cable connections, and main ground (where neg. battery cable attaches to the car).

. Check all under hood and under dash fuses with a test light or multimeter.

. Check/replace bulbs. Clean sockets of any corrosion and check for any "opens" in circuits.

. Check turning signal switch and brake light switch continuity.