Lights Not Working
Lights Not Working means the vehicle is showing a power, wiring, charging, fuse, or lighting problem. Start with the simple checks first—battery voltage, fuses, connectors, bulbs, and grounds—before replacing expensive modules.
Check These First
Before diving into diagnosis, quickly verify these:
- 1Check whether one light, one side, or all lights are affected.
- 2Inspect the bulb and socket for corrosion or melting.
- 3Check the correct fuse with a test light or multimeter.
- 4Verify ground connections before replacing assemblies.
What exactly is it doing?
Pick the description that fits best.
Brake Lights Not Illuminating
Stop DrivingBrake lights that do not illuminate can be caused by burned bulbs, a blown fuse, bad brake light switch, wiring damage, bad ground, corrosion in bulb sockets, or an issue with the body control module on newer vehicles. If all brake lights are out, the brake light switch, fuse, power, or ground should be checked first.
See causes →Dashboard Lights Out
MonitorDashboard Lights Out means the vehicle is showing a power, wiring, charging, fuse, or lighting problem. Start with the simple checks first—battery voltage, fuses, connectors, bulbs, and grounds—before replacing expensive modules.
See causes →Headlights Dim or Flicker
Fix SoonHeadlights Dim or Flicker means the vehicle is showing a power, wiring, charging, fuse, or lighting problem. Start with the simple checks first—battery voltage, fuses, connectors, bulbs, and grounds—before replacing expensive modules.
See causes →Related Symptoms in Electrical
Other problems to check if this isn't your issue.
Battery Dead or Car Not Charging
Fix SoonA dead or non-charging battery means your car's electrical system isn't producing or storing power, preventing the engine from starting or keeping systems running. This is usually caused by a faulty alternator, dead battery, bad connections, or parasitic drain. You should check battery terminals for corrosion, test the battery voltage, and have the alternator tested—most of these issues require professional diagnosis and repair.
Battery Draining Quickly
Fix SoonBattery Draining Quickly needs a focused diagnosis because the same symptom can come from several different parts. Start with the checks that match when it happens, then verify the likely cause before replacing parts.
Charging and Battery Warning Diagnosis
Fix SoonHub for battery warning lights, dim headlights, weak charging, dead batteries, and voltage-related electrical problems.
Starting System Diagnosis
Fix SoonHub for no-crank, no-click, clicking, and cranks-but-won't-fire problems. It separates battery/starter issues from fuel, spark, sensor, and security issues.
Electrical Short and Fuse Diagnosis
Stop DrivingHub for repeated fuse failure, burning electrical smells, smoke from electrical parts, melted wiring, and intermittent power loss.