C1426 Lexus Code - Stop Light Switch Off Stuck Malfunction
Quick Answer
The Skid Control ECU (Brake Actuator Assembly) receives stop light switch signals and uses them to determine whether or not the brakes are applied. Common causes include Blown Stop Light Switch Fuse, Faulty Stop Light Switch, Stop Light Switch harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1426 Lexus indicates Stop Light Switch Off Stuck Malfunction.
- Common causes
- Common causes include Blown Stop Light Switch Fuse, Faulty Stop Light Switch, Stop Light Switch harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1426 Lexus Description
What are the Possible Causes of the DTC C1426 Lexus?
- Blown Stop Light Switch Fuse
- Faulty Stop Light Switch
- Stop Light Switch harness is open or shorted
- Stop Light Switch circuit poor electrical connection
- Faulty Skid Control ECU (Brake Actuator Assembly)
How to Fix the DTC C1426 Lexus?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1426 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about C1426 Lexus Code
1. What does the OBDII code C1426 mean on a Lexus?
C1426 indicates a "Stop Light Switch Off Stuck Malfunction," meaning the stop light switch is not functioning correctly and may be stuck in the "off" position.
2. What are the common symptoms of code C1426 on a Lexus?
Common symptoms include brake lights not functioning, ABS or traction control warning lights on the dashboard, and possible malfunction of the brake pedal signal to related systems.
3. What causes the C1426 code to appear on a Lexus?
The code is often caused by a faulty or misaligned brake light switch, damaged wiring or connectors, or a blown fuse related to the brake light circuit.
4. How is the C1426 code diagnosed?
A mechanic will inspect the brake light switch for proper operation, check the wiring and connectors for damage, and use a scan tool to verify the signal from the brake light switch.
5. Can I drive my Lexus with the C1426 code active?
While the vehicle may still be drivable, it’s unsafe due to potential non-functional brake lights and compromised ABS or traction control systems.
6. How do I fix the C1426 code on my Lexus?
Repairs typically involve replacing the faulty brake light switch, repairing damaged wiring, or ensuring proper alignment and adjustment of the switch.
7. How much does it cost to fix the C1426 code on a Lexus?
The repair cost depends on the issue but generally ranges from $100 to $200 for brake light switch replacement, including parts and labor.
8. Can I reset the C1426 code myself?
You can reset the code using an OBDII scanner, but the issue may return unless the underlying problem is fixed.
9. What happens if I ignore the C1426 code on my Lexus?
Ignoring this code can lead to safety hazards, such as non-functional brake lights, and may affect the performance of electronic safety systems.
10. Is the C1426 code common to all Lexus vehicles?
This code can appear on various Lexus models, but it’s more likely in models with specific brake switch system designs. Always check your vehicle’s service manual for details.
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