AutoCodes – Jeep – B19A4 Jeep

B19A4 Jeep Code - Left Power Sliding Door Control Circuit 1 Low

Quick Answer

The Left Power Sliding Door Module monitors the Left Power Sliding Door Control Circuit. Common causes include Faulty Left Power Sliding Door Motor, Left Power Sliding Door Motor harness is open or shorted, Left Power Sliding Door 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: B19A4 Jeep indicates Left Power Sliding Door Control Circuit 1 Low.
Common causes: Common causes include Faulty Left Power Sliding Door Motor, Left Power Sliding Door Motor harness is open or shorted, Left Power Sliding Door 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 530

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 Aug 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B19A4 Jeep Description

The Left Power Sliding Door Module monitors the Left Power Sliding Door Control Circuit. This code will set when the Left Power Sliding Door Module senses voltage less than 2.0 volts on the Left Power Sliding Door Motor Open Driver Circuit for a specified amount of time.

OBDII Code B19A4 Jeep - Left Power Sliding Door Control Circuit 1 Low - AutoCodes.com — B19A4 Jeep Code - Left Power Sliding Door Control Circuit 1 Low

What does this mean?

What are the Possible Causes of the DTC B19A4 Jeep?

Faulty Left Power Sliding Door Motor
Left Power Sliding Door Motor harness is open or shorted
Left Power Sliding Door Motor circuit poor electrical connection
Faulty Left Power Sliding Door module
Faulty Power Sliding Door Module

How to Fix the DTC B19A4 Jeep?

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 B19A4 Jeep 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 B19A4 Jeep code?

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Need Help with the Code?

Get the B19A4 Jeep 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 B19A4 Jeep Code

1. What does the OBDII code B19A4 mean on a Jeep?

The B19A4 code indicates a "Left Power Sliding Door Control Circuit 1 Low," meaning there is a problem with the electrical circuit controlling the left power sliding door.

2. What are the common symptoms of code B19A4 on a Jeep?

Symptoms include the left power sliding door not opening or closing, intermittent operation, or no response from the door controls.

3. What causes the B19A4 code to appear?

Common causes include damaged wiring, a faulty sliding door motor, a malfunctioning door control module, or corroded electrical connections.

4. Can I still operate the left power sliding door manually with the B19A4 code?

Yes, the door may still be operable manually, but the power function might not work until the issue is resolved.

5. How do I diagnose the B19A4 code on my Jeep?

Start by inspecting the wiring and connectors for damage or corrosion, check the power sliding door motor, and use a diagnostic tool to test the door control module.

6. Can a blown fuse cause the B19A4 code?

Yes, a blown fuse in the power sliding door circuit could contribute to the code, so checking the fuses is a good first step.

7. How do I fix the B19A4 code on my Jeep?

Repairs may involve replacing damaged wiring, cleaning corroded connectors, replacing the power sliding door motor, or updating/replacing the door control module.

8. Is the B19A4 code a serious issue?

While it won't affect vehicle drivability, it can inconvenience you by disabling the left power sliding door's automation, especially if frequently used.

9. Can extreme weather cause the B19A4 code to appear?

Yes, extreme weather, especially moisture or cold, can lead to corrosion or electrical issues that trigger the code.

10. Do I need a professional to fix the B19A4 code?

If you're comfortable with basic electrical diagnostics, you can attempt repairs yourself. However, more complex issues like a faulty control module may require professional assistance.