AutoCodes – Toyota – C1925 Toyota

C1925 Toyota Code - Low Capacity Sub Battery

Quick Answer

The active stabilizer suspension system has its own battery. Common causes include Faulty Battery (for active stabilizer), Faulty Active stabilizer converter, Faulty Rear active stabilizer control ECU. 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: C1925 Toyota indicates Low Capacity Sub Battery.
Common causes: Common causes include Faulty Battery (for active stabilizer), Faulty Active stabilizer converter, Faulty Rear active stabilizer control ECU.
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 783

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 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1925 Toyota Description

The active stabilizer suspension system has its own battery. If a problem occurs in the battery (for active stabilizer) charging circuit, DTCs C1925/15 and C194E/19 are stored.

OBDII Code C1925 Toyota - Low Capacity Sub Battery - AutoCodes.com — C1925 Toyota Code - Low Capacity Sub Battery

What does this mean?

What are the Possible Causes of the DTC C1925 Toyota?

Faulty Battery (for active stabilizer)
Faulty Active stabilizer converter
Faulty Rear active stabilizer control ECU
Faulty Active stabilizer current sensor
Active stabilizer current sensor harness is open or shorted
Active stabilizer current sensor circuit poor electrical connection

How to Fix the DTC C1925 Toyota?

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 C1925 Toyota 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 C1925 Toyota code?

Need more information on how to fix the C1925 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1925 Toyota 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 C1925 Toyota Code

1. What are common symptoms of OBDII code C1925 in a Toyota related to the Low Capacity Sub Battery?

The common symptoms include difficulty starting the vehicle, dimming interior lights, erratic hybrid system behavior, and warning lights on the dashboard.

2. What causes the OBDII code C1925 in a Toyota indicating Low Capacity Sub Battery?

The code C1925 is typically triggered by a failing or weak sub battery in the Toyota hybrid system, which is responsible for powering various components.

3. How can I diagnose the Low Capacity Sub Battery issue triggering code C1925 in my Toyota?

You can use a diagnostic tool to check the voltage of the sub battery, inspect for visible damage or leaks, and monitor the battery's performance during vehicle operations.

4. Is it safe to continue driving my Toyota with the OBDII code C1925 related to the Low Capacity Sub Battery?

It is not recommended to drive the vehicle for an extended period with a low capacity sub battery, as it can lead to further damage to the hybrid system components.

5. What are the repair options for resolving the OBDII code C1925 in a Toyota due to a Low Capacity Sub Battery?

Repair options include replacing the sub battery with a new one, ensuring proper connection and charging, and resetting the error code through diagnostic tools.

6. Can I replace the Low Capacity Sub Battery in my Toyota myself to fix the OBDII code C1925?

While it's possible to replace the sub battery yourself, it is recommended to seek professional assistance to ensure proper installation and compatibility with the hybrid system.

7. How long does a typical Low Capacity Sub Battery last in a Toyota before triggering the OBDII code C1925?

The lifespan of a sub battery can vary depending on usage and maintenance, but it is generally recommended to replace it every 4-5 years to avoid issues like code C1925.

8. Are there any preventative measures to avoid encountering the OBDII code C1925 due to a Low Capacity Sub Battery in my Toyota?

Regularly checking the sub battery's voltage, ensuring proper charging, and following the manufacturer's maintenance schedule can help prevent the issue.

9. Will resetting the OBDII code C1925 related to a Low Capacity Sub Battery in my Toyota fix the underlying problem?

Resetting the error code may temporarily clear the warning light, but it will not resolve the root cause of the low capacity sub battery issue.

10. How much does it typically cost to repair the OBDII code C1925 in a Toyota caused by a Low Capacity Sub Battery?

The cost of repairing the code C1925 can vary depending on the extent of the issue, but it generally involves replacing the sub battery, which can range from a few hundred to over a thousand dollars.