AutoCodesGeneric – C193B

C193B Code - Malfunction In Front Active Stabilizer Main Relay

Quick Answer

The Rear Active Stabilizer Control ECU and Front Active Stabilizer Control ECU use CAN communication to perform a mutual system check. Common causes include Faulty Rear Active Stabilizer Relay, Faulty Front Active Stabilizer Relay, Faulty Front Active Stabilizer Control Actuator. 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
C193B indicates Malfunction In Front Active Stabilizer Main Relay.
Common causes
Common causes include Faulty Rear Active Stabilizer Relay, Faulty Front Active Stabilizer Relay, Faulty Front Active Stabilizer Control Actuator.
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 1,044
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 05, 2020
💬 Need more help? Ask Coddy for instant answers — it's free!

Code C193B Description

The Rear Active Stabilizer Control ECU and Front Active Stabilizer Control ECU use CAN communication to perform a mutual system check. If a problem occurs in the Rear Active Stabilizer Control ECU, Rear Active Stabilizer Control Actuator, and PIG power source circuit, the Diagnostic Trouble Code (DTC) is stored.
OBDII Code C193B - Malfunction In Front Active Stabilizer Main Relay - AutoCodes.com
C193B Code - Malfunction In Front Active Stabilizer Main Relay

What are the Possible Causes of the DTC C193B?

  • Faulty Rear Active Stabilizer Relay
  • Faulty Front Active Stabilizer Relay
  • Faulty Front Active Stabilizer Control Actuator
  • Front Active Stabilizer Control Actuator harness is open or shorted
  • Front Active Stabilizer Control Actuator circuit poor electrical connection
  • Faulty Front Active Stabilizer Control ECU

How to Fix the DTC C193B?

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 C193B 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 C193B code?

Need more information on how to fix the C193B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C193B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 C193B Code

1. What does the OBDII code C193B mean?

The C193B code indicates a malfunction in the front active stabilizer main relay, which is part of the vehicle's active suspension system.

2. What are the common symptoms of code C193B?

Symptoms may include reduced stability or handling, an illuminated suspension warning light, and unusual noises from the front suspension.

3. What causes the C193B code to appear?

Common causes include a faulty front active stabilizer relay, wiring issues, connector damage, or a malfunctioning suspension control module.

4. Can I still drive my vehicle with a C193B code?

While the vehicle may remain drivable, handling and stability may be compromised, especially during cornering or uneven road conditions, so it’s best to address the issue promptly.

5. How can I diagnose the C193B code?

Diagnosis typically involves checking the relay, inspecting the wiring and connectors for damage or corrosion, and testing the suspension control module for faults.

6. How do I fix the C193B code?

Repairs may include replacing the faulty relay, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the suspension control module if needed.

7. How much does it cost to repair the C193B code?

The repair cost will vary depending on the issue, but replacing the relay typically costs $50 to $150 for parts, plus labor if done by a professional.

8. Can a weak battery cause the C193B code?

Yes, a weak or failing battery can cause electrical issues that may trigger this code, so it’s worth checking the battery and charging system.

9. Is the C193B code specific to certain vehicles?

This code is often associated with vehicles equipped with advanced suspension systems, such as some Lexus or Toyota models, but it may appear in other makes as well.

10. How can I prevent the C193B code from occurring?

Regular maintenance, including checking electrical connections and inspecting suspension components, can help prevent issues leading to this code.

Discuss the causes and fixes for C193B OBDII Code

Code C193B 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