C1294 Code - Brake Lamp Switch Circuit Always Active
Quick Answer
The Electronic Brake Control Module (EBCM) monitors the Brake Lamp Switch. Common causes include Faulty Brake Lamp Switch, Brake Lamp Switch harness is open or shorted, Brake Lamp Switch circuit poor electrical connection. 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
- C1294 indicates Brake Lamp Switch Circuit Always Active.
- Common causes
- Common causes include Faulty Brake Lamp Switch, Brake Lamp Switch harness is open or shorted, Brake Lamp Switch circuit poor electrical connection.
- 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 C1294 Description
What are the Possible Causes of the DTC C1294?
- Faulty Brake Lamp Switch
- Brake Lamp Switch harness is open or shorted
- Brake Lamp Switch circuit poor electrical connection
How to Fix the DTC C1294?
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 C1294 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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Information for Specific Makes
- C1294 Buick — Brake Lamp Switch Circuit Always Active
- C1294 Cadillac — Brake Lamp Switch Circuit Always Active
- C1294 Chevrolet — Brake Lamp Switch Circuit Always Active
- C1294 GMC — Brake Lamp Switch Circuit Always Active
Frequently Asked Questions about C1294 Code
1. What does the OBDII code C1294 mean?
C1294 indicates that the Brake Lamp Switch Circuit is always active, meaning the system detects the brake lights are on continuously, even when the brake pedal isn't pressed.
2. What are the common symptoms of code C1294?
Common symptoms include the brake lights staying on, cruise control not functioning, ABS or traction control warning lights on the dashboard, and excessive battery drain.
3. What causes the C1294 code to appear?
This code is usually caused by a faulty or misaligned brake light switch, damaged wiring in the brake lamp circuit, or a short circuit in the electrical system.
4. Can a faulty brake light switch trigger the C1294 code?
Yes, a faulty or stuck brake light switch is one of the most common causes of the C1294 code.
5. How do I diagnose the C1294 code?
Start by inspecting the brake light switch for proper operation, check the brake lights for continuous illumination, and examine the wiring and connectors for damage or shorts.
6. Can I drive with the C1294 code active?
It’s not recommended to drive with this code active, as it can compromise brake light functionality and potentially disable safety systems like cruise control or ABS.
7. How do I fix the C1294 code?
Repairs typically involve adjusting or replacing the brake light switch, repairing damaged wiring, or fixing any short circuits in the brake lamp circuit.
8. Will replacing the brake light switch clear the C1294 code?
If the brake light switch is the root cause, replacing or adjusting it should resolve the issue and clear the code after resetting the system.
9. Can a dead battery cause the C1294 code?
A dead battery itself won’t cause this code, but if the brake lights are stuck on due to the issue, it may drain the battery over time.
10. Should I reset the C1294 code after repairs?
Yes, after completing repairs, use an OBDII scanner to clear the code and confirm that the issue no longer occurs.
Discuss the causes and fixes for C1294 OBDII Code
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