AutoCodes – Lexus – C1925 Lexus

C1925 Lexus 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 Lexus 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 804
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 05, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code C1925 Lexus 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 Lexus - Low Capacity Sub Battery - AutoCodes.com
C1925 Lexus Code - Low Capacity Sub Battery

What are the Possible Causes of the DTC C1925 Lexus?

  • 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 Lexus?

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 Lexus 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 Lexus code?

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

Need Help with the Code?

Get the C1925 Lexus 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 Lexus Code

1. What does the OBDII code C1925 mean on a Lexus?

C1925 indicates "Low Capacity Sub Battery," meaning the vehicle's secondary battery system is not functioning properly or has diminished capacity.

2. What are the common symptoms of a C1925 code on a Lexus?

Symptoms may include warning lights on the dashboard, issues with electronic systems like the hybrid control system, or difficulty starting the vehicle.

3. What causes the C1925 code to appear on a Lexus?

The code is typically triggered by a degraded or failing sub-battery, poor battery connections, or issues with the charging system or battery control module.

4. How can I diagnose the C1925 code on my Lexus?

Start by checking the voltage and condition of the sub-battery, inspecting connections and wiring, and using a diagnostic scanner to confirm related fault codes.

5. Can I drive my Lexus with a C1925 code?

While the vehicle may still be drivable, it is not recommended to ignore this code as it could lead to further electrical or hybrid system issues.

6. How do I fix the C1925 code on a Lexus?

Repairs typically involve replacing the sub-battery, ensuring all connections are secure, and possibly resetting the vehicle's control systems with a diagnostic tool.

7. How much does it cost to repair a C1925 code on a Lexus?

The cost can vary depending on the model, but replacing the sub-battery may range from $200 to $600, including labor.

8. What tools are needed to repair a C1925 code?

You'll need a multimeter to test the battery, a diagnostic scanner to reset the code, and basic tools for accessing and replacing the sub-battery.

9. Can a bad alternator cause the C1925 code?

While uncommon, a failing alternator or charging system issue could indirectly cause the code by not properly charging the sub-battery.

10. How do I prevent the C1925 code from reoccurring?

Regular maintenance, checking battery health, and ensuring proper charging system function can help prevent this code from reappearing.

Discuss the causes and fixes for C1925 Lexus OBDII Code

Code C1925 Lexus comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play