B3884 2015 Chevrolet Silverado Code - Center High Mounted Stop Lamp Circuit
Quick Answer
The brake pedal position sensor is used to sense the action of the driver's application of the brake pedal. Common causes include Faulty Center High Mounted Stop Lamp, Center High Mounted Stop Lamp harness is open or shorted, Center High Mounted Stop Lamp 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
- B3884 2015 Chevrolet Silverado indicates Center High Mounted Stop Lamp Circuit.
- Common causes
- Common causes include Faulty Center High Mounted Stop Lamp, Center High Mounted Stop Lamp harness is open or shorted, Center High Mounted Stop Lamp 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 B3884 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC B3884 2015 Chevrolet Silverado?
- Faulty Center High Mounted Stop Lamp
- Center High Mounted Stop Lamp harness is open or shorted
- Center High Mounted Stop Lamp circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3884 2015 Chevrolet Silverado?
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.
Code Tech Notes
B3884:02 Center High Mounted Stop Lamp Circuit Short to Ground
B3884:04 Center High Mounted Stop Lamp Circuit Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B3884 2015 Chevrolet Silverado 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.
Need more information about the B3884 2015 Chevrolet Silverado code?
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Frequently Asked Questions about B3884 2015 Chevrolet Silverado Code
1. What does the OBDII code B3884 mean on a 2015 Chevrolet Silverado?
The code B3884 indicates an issue with the Center High Mounted Stop Lamp (CHMSL) circuit, which is responsible for the third brake light operation.
2. What are the common symptoms of code B3884 in a 2015 Chevrolet Silverado?
Common symptoms include the third brake light not illuminating, a warning light on the dash, or the vehicle failing an inspection due to a non-functional CHMSL.
3. What causes the B3884 code to appear?
The most common causes include a blown fuse, faulty CHMSL bulb, damaged wiring or connectors, or a malfunctioning Body Control Module (BCM).
4. Can a faulty bulb trigger the B3884 code?
Yes, a burnt-out or faulty bulb in the third brake light can cause the B3884 code to appear.
5. How do I diagnose the B3884 code on my 2015 Chevrolet Silverado?
Start by inspecting the CHMSL bulb, checking the fuse, and examining the wiring and connectors for damage or corrosion. A scan tool can also help confirm the issue.
6. Is the B3884 code a serious issue?
While it doesn’t affect drivability, it’s a safety concern since the third brake light is required for proper signaling and compliance with traffic laws.
7. How do I fix the B3884 code on my Silverado?
Repairs may include replacing the CHMSL bulb, repairing damaged wiring, replacing a blown fuse, or reprogramming or replacing the BCM if it’s at fault.
8. What tools are needed to fix the B3884 code?
Basic tools like a multimeter for testing voltage, a scan tool for clearing the code, and replacement parts like a new bulb or fuse may be necessary.
9. Can I drive my Silverado with the B3884 code active?
Yes, but it’s not recommended as the third brake light is a critical safety feature and may result in a traffic violation if not functioning.
10. Will clearing the B3884 code fix the problem?
No, clearing the code without addressing the underlying issue will only temporarily hide the problem, and the code is likely to return.
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