Infiniti M30 Brake Light Switch Guide for 1990-1992 Models
Keep your classic M30 safe and functional by understanding and replacing a faulty brake light switch.
- A bad brake light switch can cause your brake lights to fail or get stuck on.
- You may be unable to shift your M30 out of Park if the switch is broken.
- Replacement is simple, located above the brake pedal, and very feasible for a DIY repair.
- Always check the fuse and bulbs before assuming the switch is the problem.
Is Your M30 Brake Light Switch Failing?
A failing brake light switch on your 1990-1992 Infiniti M30 can cause confusing problems. Because the part is relatively simple, the signs of failure are usually straightforward. The most common issue is that your brake lights don't turn on when you press the pedal. Conversely, they might get stuck and stay on, even when your foot is off the brake. You might also find that you're unable to shift your M30 out of Park, as the switch is tied into the shift interlock safety system. In some cases, the brake lights might flicker or work only some of the time.
Safety First
Driving without functioning brake lights is extremely dangerous and illegal. If your brake lights are not working, do not drive the vehicle. A faulty switch can also prevent you from shifting out of park, leaving you stranded. Address this issue immediately for your safety and the safety of others.
Choosing the Right Aftermarket Brake Light Switch
For a classic vehicle like the 1990-1992 M30, aftermarket parts are often the most accessible and affordable option. The quality of these parts can be just as good as the original, especially from reputable brands. Here’s a look at the brands available:
- Standard Ignition (SMP): A well-regarded industry leader, Standard produces reliable parts that meet or exceed original specifications. They are a solid choice for a dependable replacement.
- Beck Arnley: This brand specializes in parts for foreign nameplate vehicles. They focus on matching the original equipment (OE) form, fit, and function, often sourcing parts from the same manufacturers that supplied the automaker. This is a premium aftermarket option.
- Facet, Holstein, Rostra Powertrain: These are established aftermarket brands that offer a cost-effective solution. They provide a functional replacement that can restore your brake light system to working order, making them a good value for the price.
Pro Tip: Before replacing the switch, always check the fuse and the bulbs first. It's the most common reason for brake lights not working and is a much simpler fix.
Brake Light Switch Costs for Your Infiniti M30
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket | $6.28 - $15.72 |
| Shop Labor | $49 - $72 |
| Total Professional Repair | $74 - $97 |
Frequently Asked Questions
Can I replace the M30 brake light switch myself?
Yes, this is a very DIY-friendly repair. The switch is located above the brake pedal arm and is typically held in place by a retaining nut. You'll need to disconnect the electrical connector, unscrew the old switch, and install the new one. Basic hand tools are usually all that's required.
Why can't I shift out of Park?
The brake light switch sends a signal that you are pressing the brake, which is required to release the gear shifter from Park. If the switch is faulty and doesn't send this signal, the shift interlock will not disengage, and you will be stuck in Park.
My brake lights are stuck on. Is it the switch?
Most likely, yes. If the switch fails in the 'on' position or is misaligned, it will continuously send power to the brake lights. Also, check to make sure nothing, like a floor mat, is pushing on the brake pedal.
Are there any recalls for the 1990-1992 M30 brake light switch?
Our search found no specific recalls or Technical Service Bulletins (TSBs) for the brake light switch on the 1990-1992 Infiniti M30. While Nissan (Infiniti's parent company) has had recalls for brake light switches on other models, none apply to this specific vehicle.
Technical Specifications
The switch is a plunger-style switch that activates when the brake pedal is pressed. It is located on a bracket near the top of the brake pedal assembly.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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