Rick's Free Auto Repair Advice

Posts Tagged: brake lights don’t work

Brake lights don’t work — How to diagnose and fix

Brake lights don’t work — Learn how to diagnose and fix If your brake lights don’t work, the problem can be as simple as burned-out bulbs, a blown fuse, a bad or misadjusted brake light switch, a bad body control module, or a bad ground. Here’s how to diagnose the system. Start by checking the brake light bulbs Brake light bulbs can be a single filament or a dual filament style. In a single filament setup, one bulb is for the parking lights and the other bulb is for the … Read More

Headlights don’t work

Headlights don’t work “Headlights don’t work” is a common question is auto forums. Or, people wonder why one headlight works but the other doesn’t. How headlight systems are designed Headlight switch switches power In older vehicles, the headlight switch is what switches power to the headlights. Depending on the year, make, and model, the headlight fuses can be located before the headlight switch or between the headlight switch and the headlights. Headlight switch operates headlight relay In other vehicles, the headlight switch is used to operate a headlight relay. It’s … Read More

Brake lights not working GM vehicles

My brake lights don’t work and won’t shift out of park GM has issued a technical service bulletin #08-05-22-009B to address an issue of intermittent brake light operation (Brake lights don’t work), won’t shift out of park, cruise control doesn’t work, trouble codes C0131, C0161, or C0277. The TSB applies to the following vehicles: 2004-07 Chevrolet Malibu, Malibu Maxx 2008 Chevrolet Malibu Classic 2005-09 Pontiac G6 2007-09 Saturn Aura Since the brake switch is involved in all of these symptoms, you may be tempted to replace it. Even after replacing … Read More

No brake lights

Why don’t my brake lights work Some owners complain of no brake lights in their early 2000 model GM vehicles. The high mount stop light works, but not the brake lights. In addition, the hazard lights may work on the front but not the rear. Also, the rear parking lights work, just not the rear brake lights or hazards. Here’s how the system works. Power flows to the rear brake lights from the 15A brake fuse located in the right hand instrument panel fuse box. So check the fuse first. … Read More


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