B3445 Chevrolet Code - Stop Lamp Circuit
Quick Answer
Battery voltage for the Center High Mounted Stop Lamp (CHMSL) is applied from the CHMSL/Back-up Fuse in the rear electrical center to the Body Control Module (BCM). 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
- B3445 Chevrolet indicates 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 B3445 Chevrolet Description
What are the Possible Causes of the DTC B3445 Chevrolet?
- 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 B3445 Chevrolet?
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 B3445 Chevrolet 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 B3445 Chevrolet Code
What does the OBDII code B3445 mean for a Chevrolet vehicle?
B3445 indicates a problem with the stop lamp circuit, which is responsible for the brake lights functioning correctly.
What are common symptoms associated with the B3445 code?
Common symptoms include malfunctioning brake lights, dashboard warning lights, and issues with the brake pedal not engaging properly.
What could cause the B3445 code to be triggered?
Potential causes include a faulty brake light switch, damaged wiring in the stop lamp circuit, or a blown fuse related to the brake lights.
How can I troubleshoot the B3445 code?
Start by inspecting the brake light switch for proper operation, checking the wiring for damage or corrosion, and testing the fuses associated with the brake light circuit.
What is a common repair for the B3445 code?
A common repair involves replacing the brake light switch if it is found to be defective or repairing any damaged wiring in the stop lamp circuit.
Can I continue driving my Chevrolet with the B3445 code?
While you can technically drive the vehicle, it's not recommended as malfunctioning brake lights can pose safety risks and may lead to traffic violations.
Will resetting the check engine light fix the B3445 code?
Resetting the check engine light will not fix the underlying issue; the problem must be diagnosed and repaired to prevent the code from returning.
How can I prevent the B3445 code from reoccurring?
Regularly inspect and maintain the brake light system, including the switch and wiring, to ensure they are in good condition and functioning properly.
Is there a specific tool needed to diagnose the B3445 code?
An OBD-II scanner is needed to read and clear the code, and a multimeter may be useful for testing the brake light switch and circuit integrity.
Discuss the causes and fixes for B3445 Chevrolet OBDII Code
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