AutoCodes – Chevrolet – B2545 2015 Chevrolet Silverado

B2545 2015 Chevrolet Silverado Code - Backup Lamps Circuit

Quick Answer

The backup lamp relay is always supplied with battery voltage. Common causes include Blown Backup Lamp Fuse, Faulty Body Control Module (BCM), Body Control Module 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: B2545 2015 Chevrolet Silverado indicates Backup Lamps Circuit.
Common causes: Common causes include Blown Backup Lamp Fuse, Faulty Body Control Module (BCM), Body Control Module 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 208

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 24, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B2545 2015 Chevrolet Silverado Description

The backup lamp relay is always supplied with battery voltage. With the engine running and the transmission in the reverse position, the Transmission Control Module (TCM) sends a serial data message to the Body Control Module (BCM). The message indicates that the gear selector is in the reverse position. The BCM energizes the backup lamp relay by applying battery voltage to the backup lamp relay control circuit. When the backup lamp relay is energized, the relay switch contacts close, and battery voltage is applied through the backup lamp fuses to the backup lamp control circuits which illuminate the backup lamps. Once the driver moves the gear selector out of the reverse position, a message is sent by the TCM via serial data requesting the BCM to remove the battery voltage from the backup lamp relay control circuit. The engine must be running for the backup lamps to operate. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a problem with the backup lamps relay control circuit.

OBDII Code B2545 2015 Chevrolet Silverado - Backup Lamps Circuit - AutoCodes.com — B2545 2015 Chevrolet Silverado Code - Backup Lamps Circuit

What does this mean?

What are the Possible Causes of the DTC B2545 2015 Chevrolet Silverado?

Blown Backup Lamp Fuse
Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC B2545 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.

What does this mean?

Code Tech Notes

B2545:01 Backup Lamps Circuit Short to Battery
B2545:02 Backup Lamps Circuit Short to Ground
B2545:02 Backup Lamps Circuit Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2545 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 B2545 2015 Chevrolet Silverado code?

Need more information on how to fix the B2545 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2545 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2545 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B2545 on a 2015 Chevrolet Silverado related to the Backup Lamps Circuit?

The common symptoms include malfunctioning reverse lights, flickering or dim lights, and in some cases, the reverse lights may not illuminate at all.

2. What are the possible causes of OBDII code B2545 on a 2015 Chevrolet Silverado?

Possible causes of this code include a faulty backup lamp switch, damaged wiring or connectors in the backup lamp circuit, a blown fuse, or a problem with the body control module.

3. How can I diagnose the issue causing OBDII code B2545 on my 2015 Chevrolet Silverado?

You can diagnose the issue by checking the backup lamp fuse, inspecting the wiring and connectors for any damage, testing the backup lamp switch for continuity, and using a diagnostic scanner to retrieve trouble codes.

4. Can I still drive my 2015 Chevrolet Silverado with OBDII code B2545 present?

While it may be possible to drive the vehicle with this code, it is not recommended as the malfunctioning backup lamps can pose a safety hazard, especially when reversing in low light conditions.

5. How can I repair OBDII code B2545 on my 2015 Chevrolet Silverado Backup Lamps Circuit?

Repairing this code involves replacing the faulty backup lamp switch, repairing or replacing damaged wiring or connectors, checking and replacing blown fuses, or addressing any issues with the body control module.

6. Is it possible to reset OBDII code B2545 on a 2015 Chevrolet Silverado without fixing the underlying issue?

Resetting the code without addressing the root cause will only temporarily clear the code. The issue causing the code will persist, and the code is likely to return after some driving cycles.

7. Are there any DIY tips for troubleshooting OBDII code B2545 on a 2015 Chevrolet Silverado?

You can start by visually inspecting the backup lamp circuit for any obvious signs of damage, checking the fuse, and using a multimeter to test the backup lamp switch for continuity to narrow down the issue.

8. Will fixing OBDII code B2545 on my 2015 Chevrolet Silverado require professional assistance?

Depending on your technical skills and familiarity with automotive electrical systems, you may be able to address this issue yourself. However, if you are unsure or uncomfortable working on electrical components, it is recommended to seek professional help.

9. Can extreme weather conditions impact the Backup Lamps Circuit and trigger OBDII code B2545 on a 2015 Chevrolet Silverado?

Yes, extreme weather conditions such as moisture, heat, or cold can affect the wiring and connectors in the backup lamp circuit, potentially leading to issues that trigger this OBDII code.

10. How long does it typically take to repair OBDII code B2545 on a 2015 Chevrolet Silverado Backup Lamps Circuit?

The repair time can vary depending on the exact cause of the issue. Simple fixes like replacing a fuse may only take a few minutes, while troubleshooting and repairing more complex issues could take several hours.