B3884:01 Code - Center High Mounted Stop Lamp Circuit Short to Battery
Quick Answer
The B3884:01 diagnostic trouble code (DTC) indicates that there is a short circuit to the battery in the center high mounted stop lamp circuit of the vehicle. Common causes include Damaged wiring in the center high mounted stop lamp circuit, Faulty brake light switch, Malfunctioning lamp assembly. 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
- B3884:01 indicates Center High Mounted Stop Lamp Circuit Short to Battery.
- Common causes
- Common causes include Damaged wiring in the center high mounted stop lamp circuit, Faulty brake light switch, Malfunctioning lamp assembly.
- 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.
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Code B3884:01 Description
The B3884:01 diagnostic trouble code (DTC) indicates that there is a short circuit to the battery in the center high mounted stop lamp circuit of the vehicle. The center high mounted stop lamp, also known as the third brake light, is an important safety feature that alerts drivers behind you when you are braking. When this circuit is shorted to the battery, it can cause the third brake light to malfunction, potentially leading to reduced visibility of your braking intentions to other drivers on the road.
Common Causes of B3884:01
- Damaged wiring in the center high mounted stop lamp circuit
- Faulty brake light switch
- Malfunctioning lamp assembly
- Electrical issues in the vehicle's wiring system
- Corrosion or loose connections in the brake light circuit
Symptoms of B3884:01
- Third brake light not illuminating when braking
- Warning light on the dashboard indicating a brake light issue
- Fuse for the center high mounted stop lamp blowing repeatedly
- Other brake lights functioning correctly while the third brake light is not working
How to Fix B3884:01
- Begin by visually inspecting the wiring and connections in the center high mounted stop lamp circuit to identify any visible damage or corrosion.
- Test the brake light switch to ensure it is functioning correctly and sending the appropriate signals to the third brake light.
- Check the lamp assembly for any signs of damage or malfunction and replace if necessary.
- Use a multimeter to test the continuity of the wiring in the circuit and repair or replace any damaged wires.
- Clear the DTC from the vehicle's computer system using a diagnostic scan tool after completing the repairs.
Cost to Fix B3884:01
The typical repair costs for addressing a B3884:01 code can vary depending on the specific cause of the issue and the labor rates in your area. In general, repairing a short circuit in the center high mounted stop lamp circuit may range from $100 to $300, including parts and labor. However, it is important to note that diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It is advisable to contact local auto repair shops for a more accurate estimate based on your specific circumstances.
Tech Notes for B3884:01
B3884:02 Center High Mounted Stop Lamp Circuit Short to Ground
B3884:04 Center High Mounted Stop Lamp Circuit Open
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