AutoCodes – Generic – C194E

C194E Code - Deterioration Of 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: C194E indicates Deterioration Of 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,933

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C194E 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 C194E - Deterioration Of Sub Battery - AutoCodes.com — C194E Code - Deterioration Of Sub Battery

What does this mean?

What are the Possible Causes of the DTC C194E?

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 C194E?

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 C194E 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 C194E code?

Need more information on how to fix the C194E code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C194E code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C194E Lexus — Deterioration Of Sub Battery
C194E Toyota — Deterioration Of Sub Battery

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 C194E Code

1. What are common symptoms of OBDII code C194E (Deterioration Of Sub Battery)?

- Common symptoms include warning lights on the dashboard, difficulty starting the vehicle, and poor performance of electronic components.

2. What causes the OBDII code C194E to indicate Deterioration Of Sub Battery?

- The code is typically triggered by a weak or failing sub battery in the vehicle's hybrid or electric powertrain system.

3. Can a deteriorated sub battery cause other issues besides triggering the OBDII code C194E?

- Yes, a deteriorated sub battery can lead to reduced fuel efficiency, decreased power output, and potential damage to other components in the vehicle.

4. How can I diagnose if the sub battery is causing the OBDII code C194E?

- A diagnostic scan tool can be used to read the code and check the voltage levels of the sub battery to determine if it is deteriorating.

5. Is it safe to continue driving with the OBDII code C194E indicating Deterioration Of Sub Battery?

- It is not recommended to continue driving with this code as it can lead to further damage and potential safety hazards.

6. What are some repair tips for fixing the OBDII code C194E related to a deteriorated sub battery?

- The sub battery may need to be tested and replaced if necessary. It is important to consult a qualified technician for proper diagnosis and repair.

7. Can I reset the OBDII code C194E related to Deterioration Of Sub Battery on my own?

- Resetting the code may temporarily clear the warning light, but it is important to address the root cause by repairing or replacing the sub battery.

8. How long does it typically take to repair the OBDII code C194E caused by a deteriorated sub battery?

- The repair time can vary depending on the extent of the damage and the availability of replacement parts. It is best to consult a professional for an accurate estimate.

9. Are there any preventive measures to avoid encountering the OBDII code C194E related to Deterioration Of Sub Battery in the future?

- Regular maintenance of the sub battery and monitoring its performance can help prevent deterioration and the triggering of this code.

10. Can a DIY enthusiast replace a deteriorated sub battery causing the OBDII code C194E?

- While some DIY enthusiasts may have the skills to replace a sub battery, it is recommended to seek assistance from a qualified technician due to the complexity of hybrid or electric powertrain systems.