Acura Legend Brake Light Fail - Bulbs Not Working Or Not Coming Off

By Nick Marchenko, PhD

If you're driving an Acura Legend and find yourself with non-functional brake lights, don't fret! Here's a comprehensive DIY guide that amalgamates various solutions from fellow Acura Legend enthusiasts who've tackled similar issues. Follow these steps to diagnose and fix your brake light problems.

Step 1: Basic Checks

Before diving into more complex troubleshooting, perform these basic checks:

• Check the Bulbs: Ensure that all brake light bulbs are functioning correctly. Replace any burnt-out bulbs.
• Inspect Fuses: Verify that the fuses related to the brake lights and horn are intact. These are usually found under the dash or under the hood.

Need help in choosing the right brake light bulb sizes for your Acura Legend? Consult the chart below:

• 1995 Acura Legend Brake Light Bulb Sizes;
• 1994 Acura Legend Brake Light Bulb Sizes;
• 1992 Acura Legend Brake Light Bulb Sizes;

Step 2: Brake Light Switch and Wiring

The brake light switch, typically located near the brake pedal, often causes issues.

• Adjust/Replace Brake Light Switch: Check if the brake light switch is functioning properly. It should activate when the pedal is pressed. If faulty, adjust or replace it.
  • Accessing the Switch: Remove the kick panel below the steering column to access the switch. This might involve removing a few screws and disconnecting some wires.
  • Adjustment and Replacement: Adjust the brake switch by screwing it in or out to ensure it is pressed when the brake pedal is not engaged. Replace if necessary.

Step 3: Connector and Wiring Issues

• Check the Connector Behind the Back Seat: Some Legends may have a problematic connector located behind the back seat, especially if recent work or modifications were done around this area.
• Inspect Wiring Harness: Look for any signs of wear, corrosion, or damage in the wiring harness that runs from the brake lights to the connector.

Step 4: Dealing with Electrical Anomalies

• Check for Grounding Issues: Ensure all grounding points are secure and not corroded.
• Look for Loose Connections: Check under the dash and around the fuse box for any loose wires or connectors that might affect the brake lights.

Step 5: The Brake Pedal and Plastic Tabs

• Inspect the Plastic Tab on the Brake Pedal: This tab presses the brake light switch. If it's missing or broken, replace it with a suitable bolt or plastic piece that can consistently press the switch when the pedal is not engaged.

Troubleshooting Tips

• Multimeter Use: Utilize a multimeter to check for power at the brake light switch and along the wiring to the brake lights to ensure there's no electrical fault along the path.
• Cruise Control Check: Adjustments to the brake switch can affect the cruise control. Make sure the switch adjustment allows for the cruise control to disengage properly when the brake is applied.

Preventive Measures

• Regular Maintenance: Regularly check and maintain the brake lights, switches, and related wiring to avoid sudden failures.
• Quality Parts: Use high-quality replacement parts to ensure long-term reliability and functionality.

Conclusion

Brake light issues in the Acura Legend can stem from various sources, from simple bulb failures to more complex electrical system malfunctions. By methodically checking each potential problem area as outlined, you can diagnose and possibly fix the issue without needing professional help. Remember, safety is paramount, so if you're unsure about any steps, consult with a professional mechanic.

Nick Marchenko, PhD

Industrial Engineer & Automotive Content Specialist

Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.

Full profile → LinkedIn →