AutoCodes – Generic – B2552

B2552 Code - Liftgate/Trunk Vbatt 2 Circuit Open

Quick Answer

The Liftgate/Trunk Module (LTM) monitors the Gate Motor circuit. Common causes include Faulty Gate Motor, Gate Motor harness is open or shorted, Gate Motor 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: B2552 indicates Liftgate/Trunk Vbatt 2 Circuit Open.
Common causes: Common causes include Faulty Gate Motor, Gate Motor harness is open or shorted, Gate Motor 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 5,722

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 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2552 Description

The Liftgate/Trunk Module (LTM) monitors the Gate Motor circuit. The LTM sets the OBDII code when a continuous memory and on-demand Diagnostic Trouble Code (DTC) that sets when the LTM detects less than 4 volts on the high current voltage feed circuit and the logic voltage feed circuit is greater than 8 volts.

OBDII Code B2552 - Liftgate/Trunk Vbatt 2 Circuit Open - AutoCodes.com — B2552 Code - Liftgate/Trunk Vbatt 2 Circuit Open

What does this mean?

What are the Possible Causes of the DTC B2552?

Faulty Gate Motor
Gate Motor harness is open or shorted
Gate Motor circuit poor electrical connection
Faulty Liftgate/Trunk Module (LTM)

How to Fix the DTC B2552?

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 B2552 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 B2552 code?

Need more information on how to fix the B2552 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2552 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2552 Ford — Liftgate/Trunk Vbatt 2 Circuit Open
B2552 Infiniti — Intelligent Key
B2552 Lexus — Pulse Width Modulation Motor Left Power Supply Circuit Malfunction
B2552 Lincoln — Liftgate/Trunk Vbatt 2 Circuit Open
B2552 Mercury — Liftgate/Trunk Vbatt 2 Circuit Open
B2552 Nissan — Intelligent Key

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 B2552 Code

1. What does OBDII code B2552 mean?

Code B2552 indicates an open circuit in the Liftgate/Trunk Vbatt 2 circuit, which is responsible for providing power to the liftgate or trunk system.

2. What are the common symptoms of code B2552?

Common symptoms include the liftgate or trunk not opening or closing electronically, intermittent operation, or no response from the liftgate/trunk buttons.

3. What causes code B2552 to appear?

This code is usually triggered by damaged wiring, a blown fuse, a faulty liftgate/trunk switch, a malfunctioning actuator, or a poor electrical connection in the circuit.

4. Can I still use my trunk or liftgate if code B2552 is present?

You may be able to operate the trunk or liftgate manually, but the electronic controls will likely not function until the issue is resolved.

5. How do I diagnose the cause of code B2552?

Start by inspecting the wiring and connectors for damage or corrosion. Check the fuses related to the liftgate circuit and test the actuator and switch for proper operation.

6. What tools do I need to troubleshoot code B2552?

You'll need a multimeter to test for voltage and continuity, a wiring diagram for your vehicle, and potentially a scan tool to clear the code after repairs.

7. How can I fix code B2552?

Repairs may involve replacing damaged wiring, repairing corroded connectors, replacing a blown fuse, or replacing a faulty switch or actuator.

8. Is code B2552 a serious issue?

While it doesn't directly affect vehicle performance, it can be inconvenient and may prevent access to the trunk or liftgate, which could be problematic in certain situations.

9. Can a weak battery cause code B2552?

Yes, a weak or failing battery can lead to insufficient voltage in the circuit, potentially triggering this code.

10. Will clearing the code fix the problem?

Clearing the code will not fix the underlying issue. You must address the root cause, such as repairing wiring or replacing faulty components, to prevent the code from returning.