AutoCodes – Chevrolet – B2545 2014 Chevrolet Silverado

B2545 2014 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 2014 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.

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Code Popularity 188

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
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Code B2545 2014 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 2014 Chevrolet Silverado - Backup Lamps Circuit - AutoCodes.com — B2545 2014 Chevrolet Silverado Code - Backup Lamps Circuit

What does this mean?

What are the Possible Causes of the DTC B2545 2014 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 2014 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 2014 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 2014 Chevrolet Silverado code?

Need more information on how to fix the B2545 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2014 Chevrolet Silverado Code

1. What does OBDII code B2545 for a 2014 Chevrolet Silverado mean?

The code B2545 on a 2014 Chevrolet Silverado indicates a problem with the Backup Lamps Circuit.

2. What are the common symptoms of OBDII code B2545 in a 2014 Chevrolet Silverado?

Common symptoms of code B2545 may include non-functioning reverse lights or backup lamps on the vehicle.

3. What are the possible causes of OBDII code B2545 in a 2014 Chevrolet Silverado?

Possible causes of code B2545 can include faulty backup lamp bulbs, damaged wiring or connectors in the backup lamp circuit, or a malfunctioning backup lamp switch.

4. How can I diagnose the issue related to OBDII code B2545 in my 2014 Chevrolet Silverado?

Diagnosing the problem with code B2545 may involve visually inspecting the backup lamp circuit for any visible damage, checking the wiring and connectors for continuity, and testing the backup lamp switch for proper operation.

5. Can I still drive my 2014 Chevrolet Silverado with OBDII code B2545?

It is generally safe to drive your vehicle with code B2545, but you should address the issue promptly to ensure that your backup lamps function correctly for safety reasons.

6. How can I repair OBDII code B2545 in my 2014 Chevrolet Silverado?

Repairing code B2545 may involve replacing faulty backup lamp bulbs, repairing damaged wiring or connectors, or replacing a malfunctioning backup lamp switch as needed.

7. Will resetting the OBDII code B2545 in my 2014 Chevrolet Silverado make the problem go away?

Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing code B2545. It's important to diagnose and repair the problem to prevent the code from reoccurring.

8. Are there any DIY tips for troubleshooting OBDII code B2545 in a 2014 Chevrolet Silverado?

DIY tips for troubleshooting code B2545 include checking the fuse related to the backup lamps, inspecting the wiring harness for any visible damage, and ensuring that the backup lamp bulbs are in good condition.

9. Could extreme weather conditions affect the backup lamps circuit and trigger OBDII code B2545 in a 2014 Chevrolet Silverado?

Extreme weather conditions such as water damage from flooding or corrosion due to moisture can potentially affect the backup lamps circuit and lead to code B2545 in a 2014 Chevrolet Silverado.

10. Is it necessary to take my 2014 Chevrolet Silverado to a professional mechanic for OBDII code B2545 diagnosis and repair?

While some DIY troubleshooting can be done for code B2545, it is recommended to consult a professional mechanic for a thorough diagnosis and repair to ensure the issue is properly resolved.