AutoCodes – Generic – B2594

B2594 Code - No Movement Was Detected After An Unlatch During A Power Open

Quick Answer

The Power Sliding Door (PSD) Module supplies 12 volts to the latch actuator on a circuit through the sliding door contacts which release the power sliding door latch. Common causes include Faulty Power Sliding Door (PSD) Detent Switch, Faulty Power Sliding Door (PSD) Drive Assembly Actuator, Faulty Power Sliding Door (PSD) Module. 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: B2594 indicates No Movement Was Detected After An Unlatch During A Power Open.
Common causes: Common causes include Faulty Power Sliding Door (PSD) Detent Switch, Faulty Power Sliding Door (PSD) Drive Assembly Actuator, Faulty Power Sliding Door (PSD) Module.
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 4,175

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 Jan 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2594 Description

The Power Sliding Door (PSD) Module supplies 12 volts to the latch actuator on a circuit through the sliding door contacts which release the power sliding door latch. Also, a 5-volt reference is supplied to the position sensor on circuit. The PSD detent switch circuit is monitored for a momentary ground signaling the rear latch is released. This circuit is monitored through the sliding door contacts and will open when the contacts separate. When the momentary PSD detent switch ground is detected by the PSD module, power is supplied to the drive assembly actuator clutch and motor which opens the power sliding door. As the power sliding door is opened, the position sensor is used to track the power sliding door movement and position. If there is no movement detected by the PSD module after an unlatch occurred, DTC B2594 sets.

OBDII Code B2594 - No Movement Was Detected After An Unlatch During A Power Open - AutoCodes.com — B2594 Code - No Movement Was Detected After An Unlatch During A Power Open

What does this mean?

What are the Possible Causes of the DTC B2594?

Faulty Power Sliding Door (PSD) Detent Switch
Faulty Power Sliding Door (PSD) Drive Assembly Actuator
Faulty Power Sliding Door (PSD) Module

How to Fix the DTC B2594?

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 B2594 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 B2594 code?

Need more information on how to fix the B2594 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2594 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2594 Ford — No Movement Was Detected After An Unlatch During A Power Open
B2594 Lincoln — No Movement Was Detected After An Unlatch During A Power Open
B2594 Mercury — No Movement Was Detected After An Unlatch During A Power Open

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 B2594 Code

1. What are the common symptoms of OBDII code B2594?

The common symptoms of OBDII code B2594 include the power liftgate not opening or closing properly, unusual noises during operation, and a warning light on the dashboard.

2. What can cause the OBDII code B2594 to trigger?

The code B2594 is triggered when the vehicle's computer detects that no movement was detected after an unlatch during a power open event, indicating a communication or mechanical issue with the power liftgate system.

3. How can I diagnose the cause of OBDII code B2594?

Diagnosing the cause of code B2594 involves checking the power liftgate system for any mechanical obstructions, loose connections, or damaged components. A scan tool can also help in identifying the specific issue.

4. What are some repair tips for fixing OBDII code B2594?

Repair tips for code B2594 include checking and repairing any damaged wiring or connectors, ensuring that the liftgate is not obstructed, and recalibrating the power liftgate system if necessary.

5. Can I drive my vehicle with OBDII code B2594?

It is generally safe to drive your vehicle with code B2594, but it is recommended to address the issue promptly to avoid potential inconvenience or safety hazards associated with a malfunctioning power liftgate.

6. Will resetting the OBDII code B2594 make it go away permanently?

Resetting the code may temporarily clear the warning light, but the underlying issue causing code B2594 will persist until it is properly diagnosed and repaired.

7. How much does it cost to repair OBDII code B2594?

The cost of repairing code B2594 can vary depending on the specific cause of the issue, with expenses typically ranging from a few hundred to a few thousand dollars, including parts and labor.

8. Can I fix OBDII code B2594 myself, or do I need a professional mechanic?

While some DIY enthusiasts may be able to diagnose and repair code B2594 themselves, it is recommended to consult a professional mechanic, especially if you are not familiar with power liftgate systems or electronic troubleshooting.

9. Are there any recalls or technical service bulletins related to OBDII code B2594?

It is recommended to check with the vehicle manufacturer or a dealership to inquire about any recalls or technical service bulletins related to code B2594, as they may offer solutions or assistance with the issue.

10. How can I prevent OBDII code B2594 from occurring in the future?

To prevent code B2594 from occurring in the future, regular maintenance of the power liftgate system, including lubricating moving parts, checking for obstructions, and inspecting electrical connections, can help avoid issues that trigger the code.