Mitsubishi Galant Brake Light Switch Guide (1985-1999)
Everything a Galant owner needs to know about diagnosing and replacing a faulty brake light switch.
- A bad brake light switch is a critical safety issue; diagnose and replace it immediately if your brake lights are not working.
- Symptoms include brake lights not working, staying on, being unable to shift from Park, or cruise control issues.
- Replacement is a simple, low-cost DIY job that takes less than 30 minutes.
- No recalls are on file for this part on the 1985-1999 Galant; failures are due to normal wear.
Is Your Galant's Brake Light Switch Failing?
A faulty brake light switch is a common issue on many vehicles as they age, and the 1985-1999 Galant is no exception. Because this part is used every time you press the brakes, the internal contacts eventually wear out. Recognizing the symptoms early is key to staying safe on the road.
Top 4 Symptoms of a Bad Switch
- Brake Lights Don't Work: The most dangerous symptom is when your brake lights fail to illuminate. If none of the brake lights come on when you press the pedal, the switch is a likely culprit (after checking the bulbs and fuse).
- Brake Lights Stay On: If the switch gets stuck in the 'on' position, your brake lights will remain lit even when you're not braking. This can confuse other drivers and will drain your car's battery when parked.
- Can't Shift Out of Park: On automatic transmission Galants, the switch often sends a signal to the shift interlock. If the switch is bad, your car won't know you're pressing the brake, and the gear selector may be stuck in Park. 🎬 See how to move a Mitsubishi shifter stuck in park.
- Cruise Control Issues: If your Galant has cruise control, a bad brake light switch can prevent it from engaging or cause it to disengage unexpectedly.
Safety First: A Critical Repair
Driving without functioning brake lights is extremely dangerous and illegal. It significantly increases your risk of being rear-ended. If you suspect your brake light switch has failed, you should diagnose and repair the issue immediately.
Choosing a New Aftermarket Brake Light Switch
For a vehicle like the 1985-1999 Galant, genuine Mitsubishi parts can be hard to find and may not be cost-effective. High-quality aftermarket parts offer a reliable and affordable solution. Here’s a look at the available brands:
- Standard Ignition (SMP): Often considered a top-tier aftermarket brand, Standard produces parts that meet or exceed original equipment (OE) specifications. They are known for quality materials and extensive testing, making them a reliable choice for a long-lasting repair.
- Facet / Rostra Powertrain: These are established brands that manufacture a wide range of automotive electronics. They are generally seen as good quality, mid-tier options that provide a balance of performance and value.
- Replacement: This category typically refers to value or store brands. While they are the most budget-friendly option, quality can be inconsistent. They can be a good choice for a quick fix on a tight budget, but may not have the same lifespan as premium brands.
Pro Tip: Check the Connector
Before ordering, it's a good idea to look at your Galant's existing brake light switch. The design may have changed slightly over the 15-year production run. Note the number of electrical pins and the shape of the connector to ensure you order an exact match.
Known Issues, Recalls, and TSBs
Our research found no specific recalls or Technical Service Bulletins (TSBs) issued by the NHTSA for brake light switch problems on the 1985-1999 Mitsubishi Galant. While Mitsubishi has issued recalls for this part on other models, this specific generation of the Galant appears to be unaffected by widespread, recall-level defects. Any failure is typically due to normal wear and tear over time.
DIY Replacement Guide
Replacing the brake light switch is a straightforward job that most DIY mechanics can complete 🎬 Watch this walkthrough of a Mitsubishi brake light switch replacement. in under 30 minutes with basic tools.
- Locate the Switch: The switch is mounted on a bracket above the brake pedal. You will need to look up under the dashboard in the driver's footwell.
- Disconnect Power: It's a good practice to disconnect the negative battery terminal before working on electrical components.
- Remove the Old Switch: Unplug the electrical connector from the switch. The switch itself is usually threaded into the bracket with a lock nut or has a bayonet-style fitting that you can remove by twisting it a quarter-turn counter-clockwise.
- Install the New Switch: Screw in or twist in the new switch. Reconnect the electrical harness.
- Adjust and Test: Before tightening everything, ensure the switch is adjusted correctly. The plunger should be fully depressed when the brake pedal is at rest, and released as soon as the pedal is pressed. Have a helper confirm that the brake lights turn on 🎬 Watch: How to test and replace your brake light sensor. and off instantly with the pedal action. Reconnect the battery if you disconnected it.
Cost of a New Brake Light Switch
The cost for this repair is low, especially if you do it yourself. Even having a shop perform the work is relatively inexpensive due to the short amount of labor time required.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Part | $14 - $34 |
| New OEM Part | $35 - $70 |
| Shop Labor | $56 - $82 |
| Total (Shop Repair) | $72 - $99 |
Frequently Asked Questions
Can I still drive my Galant with a bad brake light switch?
If your brake lights are not working, you should not drive the vehicle. It is a major safety hazard and illegal. If the lights are stuck on, you can drive to a repair shop, but be aware it can drain your battery if left parked for too long.
If only one brake light is out, is it the switch?
No. The brake light switch controls all the brake lights at once. If only one bulb is out, the problem is the bulb itself or its socket/wiring, not the switch.
Why did my ABS light come on with my brake light problem?
On some later models, the brake light switch provides a signal to the Anti-lock Brake System (ABS). A faulty switch can send an incorrect signal, causing the ABS warning light to illuminate.
Is there a fuse for the brake lights?
Yes. Before assuming the switch is bad, it's always a good idea to check the fuse. On many Galants, the fuse for the 'Stop Lamp' is located in the fuse box in the engine bay.
Helpful Videos
Technical Specifications
The 1985-1999 Mitsubishi Galant uses a plunger-style, pedal-activated brake light switch. The specific part may have either a 2-pin or 4-pin connector depending on the year and trim level. It is crucial to visually inspect the original part or verify with your vehicle's VIN to ensure you purchase a replacement with the correct pin configuration and connector shape.
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.
- Mitsubishi Galant:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Galant's Brake Light Switch Failing?
- Top 4 Symptoms of a Bad Switch
- Safety First: A Critical Repair
- Choosing a New Aftermarket Brake Light Switch
- Pro Tip: Check the Connector
- Known Issues, Recalls, and TSBs
- DIY Replacement Guide
- Cost of a New Brake Light Switch
- Frequently Asked Questions
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