AutoCodes – Generic – B2573

B2573 Code - Hatch Release Switch Circuit

Quick Answer

The hatch release switch circuit provides a direct battery input to the Body Control Module (BCM) when the switch is pressed. Common causes include Faulty Hatch Release Switch, Hatch Release Switch harness is open or shorted, Hatch Release Switch 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: B2573 indicates Hatch Release Switch Circuit.
Common causes: Common causes include Faulty Hatch Release Switch, Hatch Release Switch harness is open or shorted, Hatch Release Switch 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.

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Code Popularity 8,937

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 Dec 29, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2573 Description

The hatch release switch circuit provides a direct battery input to the Body Control Module (BCM) when the switch is pressed. This input allows the BCM to detect a hatch release request. If the BCM detects battery voltage on the rear compartment release switch signal circuit, the BCM will energize the hatch release relay. The BCM monitors the hatch release switch circuit and determines how long voltage has been applied.

OBDII Code B2573 - Hatch Release Switch Circuit - AutoCodes.com — B2573 Code - Hatch Release Switch Circuit

What does this mean?

What are the Possible Causes of the DTC B2573?

Faulty Hatch Release Switch
Hatch Release Switch harness is open or shorted
Hatch Release Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B2573?

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 B2573 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 B2573 code?

Need more information on how to fix the B2573 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2573 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2573 Buick — Hatch Release Switch Circuit
B2573 Cadillac — Hatch Release Switch Circuit
B2573 Chevrolet — Hatch Release Switch Circuit
B2573 GMC — Hatch Release Switch Circuit

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 B2573 Code

1. What are the common symptoms of OBDII code B2573 (Hatch Release Switch Circuit)?

- Common symptoms may include difficulty opening the hatch, the hatch not responding to the switch, or the hatch releasing unexpectedly.

2. What are some possible causes of OBDII code B2573?

- Possible causes include a faulty hatch release switch, damaged wiring or connectors in the hatch release circuit, or a malfunctioning control module.

3. How can I diagnose the issue related to OBDII code B2573?

- You can diagnose the issue by visually inspecting the hatch release switch and its wiring, testing the switch for continuity, and using a scan tool to check for any related trouble codes.

4. Can I repair OBDII code B2573 on my own?

- Depending on your level of automotive expertise, you may be able to repair the issue yourself by replacing the faulty hatch release switch, repairing damaged wiring, or addressing any other identified root causes.

5. Is it safe to continue driving with OBDII code B2573 present?

- It is generally safe to continue driving with this code, but it's important to address the underlying issue promptly to prevent any inconvenience or safety concerns related to the hatch release function.

6. How much does it typically cost to repair OBDII code B2573?

- The cost of repairing this code can vary depending on the specific cause of the issue, but it may involve expenses for replacement parts, labor, and diagnostic services.

7. Can a malfunctioning hatch release switch cause other problems in my vehicle?

- While a malfunctioning hatch release switch may not directly cause other problems, it can lead to inconvenience and potential safety issues if the hatch cannot be opened or closed properly.

8. Are there any preventive maintenance measures I can take to avoid OBDII code B2573?

- Regularly inspecting and maintaining the hatch release switch, wiring, and connectors can help prevent issues that may trigger OBDII code B2573.

9. How long does it typically take to repair OBDII code B2573?

- The repair time for this code can vary based on the complexity of the issue and the availability of replacement parts, but it may take anywhere from a few hours to a day in most cases.

10. Will resetting the OBDII system clear the B2573 trouble code?

- Resetting the OBDII system may temporarily clear the B2573 trouble code, but if the underlying issue is not addressed, the code is likely to reoccur.