Chrysler Imperial Brake Light Switch Guide for 1985-1993 Models
Address common brake light and cruise control issues in your Chrysler Imperial by understanding a common point of failure: the brake light switch.
- A faulty brake light switch is a critical safety issue and should be repaired immediately.
- Symptoms are not limited to the brake lights; a bad switch can also affect cruise control and the ability to shift out of park.
- Aftermarket replacement from a brand like Standard Ignition is the most common and practical solution for this vehicle.
- Replacement is simple and can be done by most DIYers in under an hour with basic tools.
Understanding Brake Light Switch Failure in Your Imperial
A failing brake light switch is a common issue on many vehicles as they age, and the 1985-1993 Chrysler Imperial is no exception. This switch can fail electrically, causing an open or shorted circuit, or mechanically, from wear and tear. Given the age of these vehicles, failures are typically due to the part simply wearing out. Recognizing the symptoms early is key to maintaining safety on the road.
🎬 Watch this video on brake light switch symptoms to ignore.Safety First: A Critical Repair
Driving with a faulty brake light switch is a major safety hazard. If your brake lights do not work, other drivers will not know you are stopping, which can easily lead to a rear-end collision. If the lights are stuck on, 🎬 Learn how to diagnose brake lights that stay on or off. it can confuse other drivers and drain your battery. This is not a repair that should be postponed.
Symptoms of a Bad Brake Light Switch
- Brake Lights Don't Work: The most obvious and dangerous symptom. The switch fails to complete the electrical circuit to the lights.
- Brake Lights Stay On: The switch may get stuck in the "on" position, keeping the lights illuminated even when you're not braking. This can drain your battery.
- Cruise Control Issues: If your Imperial has cruise control, a bad switch can prevent it from engaging or cause it to disengage randomly.
- Cannot Shift Out of Park: On later models with a shift interlock safety feature, a bad switch prevents the car from recognizing that the brake is pressed, so it won't allow you to shift into gear.
Choosing the Right Aftermarket Replacement
For a vehicle like the 1985-1993 Imperial, original Mopar parts are often discontinued and difficult to find. The aftermarket is the most practical source for a new brake light switch. Standard Motor Products (Standard Ignition) is a well-known aftermarket manufacturer that produces a wide range of replacement parts for vehicles of this era. While some professional mechanics have noted declining quality in certain aftermarket electronic parts, for a simple switch like this, a reputable brand like Standard is generally considered a reliable and cost-effective choice. 🎬 See an overview of Standard and Blue Streak replacement parts. Given the limited availability of other options, it is the go-to for this repair.
Pro Tip: Handle With Care
Many replacement brake light switches are self-adjusting and designed for one-time installation. Do not press the plunger or play with the adjustment lever before it is properly installed in the brake pedal bracket. Doing so can ruin the new switch before you even use it.
Brake Light Switch Replacement Cost
The cost to replace the brake light switch is reasonable. The part itself is affordable, and the labor is minimal for a professional mechanic. Many owners with basic tools can also perform this repair at home.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Part (Standard Ignition) | $85.89 |
| Shop Labor | $50 - $100 |
| Total Estimated Cost | $135.89 - $185.89 |
Frequently Asked Questions (FAQ)
Where is the brake light switch located on my Chrysler Imperial?
The brake light switch is mounted on a bracket directly above the brake pedal arm. You will need to look up under the dashboard from the driver's side floor to see it. It has a wiring connector attached to it.
Can I replace the brake light switch myself?
Yes, this is a very DIY-friendly repair for most home mechanics. It typically involves disconnecting the electrical connector, then twisting the switch to remove it from its bracket. The location can be awkward to reach, but it does not require specialized tools.
Are there any recalls for the brake light switch on my Imperial?
Searches of the NHTSA database did not show any specific recalls for the brake light switch on the 1985-1993 Chrysler Imperial. Recalls found were for much newer or completely different Chrysler models.
What happens if I don't replace a bad brake light switch?
You should not drive the vehicle. Driving without functioning brake lights is illegal and extremely dangerous, as it significantly increases your risk of being rear-ended. If the switch fails, replace it immediately.
Helpful Videos
Technical Specifications
OEM Part Numbers: 4373011
Typically a plunger-style, self-adjusting switch with a multi-pin electrical connector. It installs by twisting into the brake pedal bracket.
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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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