AutoCodes – Chevrolet – B0287 Chevrolet

B0287 Chevrolet Code - Electric Rear Defrost Circuit Open

Quick Answer

The Liftgate Module (LGM) monitors the voltage level on the supply voltage circuit of the rear window defogger. Common causes include Faulty Liftgate Module (LGM), Liftgate Module (LGM) harness is open or shorted, Liftgate Module (LGM) circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B0287 Chevrolet indicates Electric Rear Defrost Circuit Open.
Common causes: Common causes include Faulty Liftgate Module (LGM), Liftgate Module (LGM) harness is open or shorted, Liftgate Module (LGM) circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 2,171

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 10, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0287 Chevrolet Description

The Liftgate Module (LGM) monitors the voltage level on the supply voltage circuit of the rear window defogger. The LGM test the supply voltage circuit of the rear window defogger every 160 milliseconds. With the rear window defogger inactive, the supply voltage circuit of the rear window defogger will have no voltage present. With the rear window defogger active, the supply voltage circuit of the rear window defogger will be near system voltage.

OBDII Code B0287 Chevrolet - Electric Rear Defrost Circuit Open - AutoCodes.com — B0287 Chevrolet Code - Electric Rear Defrost Circuit Open

What does this mean?

What are the Possible Causes of the DTC B0287 Chevrolet?

Faulty Liftgate Module (LGM)
Liftgate Module (LGM) harness is open or shorted
Liftgate Module (LGM) circuit poor electrical connection

How to Fix the DTC B0287 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 B0287 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.

Need more information about the B0287 Chevrolet code?

Need more information on how to fix the B0287 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0287 Chevrolet 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 B0287 Chevrolet Code

1. What are the common symptoms of OBDII code B0287 in a Chevrolet indicating an Electric Rear Defrost Circuit Open?

The common symptoms include the rear defrost not working, the rear window not clearing frost or fog properly, and a warning light on the dashboard.

2. What are the possible causes of OBDII code B0287 in a Chevrolet?

Possible causes include a damaged rear defrost grid, a blown fuse, a faulty rear defrost relay, or loose/corroded electrical connections.

3. How can I diagnose OBDII code B0287 in my Chevrolet?

You can start by visually inspecting the rear defrost grid for any damage, checking the fuse related to the rear defrost, testing the rear defrost relay, and inspecting the electrical connections for any issues.

4. Can I repair OBDII code B0287 in my Chevrolet myself?

Depending on the cause, you may be able to repair it yourself by replacing a damaged rear defrost grid, a blown fuse, a faulty relay, or fixing any loose/corroded connections.

5. Is it safe to continue driving with OBDII code B0287 in a Chevrolet?

While it may not affect the drivability of the vehicle, it is recommended to get it repaired to ensure proper visibility through the rear window, especially in adverse weather conditions.

6. How much does it typically cost to repair OBDII code B0287 in a Chevrolet?

The cost can vary depending on the cause of the issue and whether you choose to repair it yourself or take it to a professional. Costs may range from a few dollars for a fuse to a couple of hundred dollars for a new rear defrost grid.

7. Can extreme weather conditions cause OBDII code B0287 in a Chevrolet?

Extreme weather conditions can exacerbate existing issues with the rear defrost system, leading to the circuit being open and triggering the OBDII code B0287.

8. Will resetting the OBDII code B0287 in a Chevrolet make the problem go away?

Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the Electric Rear Defrost Circuit Open.

9. How long does it typically take to repair OBDII code B0287 in a Chevrolet?

The repair time can vary based on the cause of the issue and your level of experience. Simple fixes like replacing a fuse can be done quickly, while more complex repairs may take longer.

10. Does OBDII code B0287 affect the overall performance of a Chevrolet vehicle?

While OBDII code B0287 specifically relates to the rear defrost system, ensuring all systems in your vehicle are functioning correctly is important for overall performance and safety.