AutoCodes – Chevrolet – C0156 Chevrolet

C0156 Chevrolet Code - Right TCS Solenoid #2 Circuit Malfunction

Quick Answer

The isolation and prime valve solenoid circuits are supplied with battery power when the ignition is in the ON position. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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
C0156 Chevrolet indicates Right TCS Solenoid #2 Circuit Malfunction.
Common causes
Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module (EBCM) harness is open or shorted, Electronic Brake Control Module (EBCM) 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,004
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 08, 2020
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Code C0156 Chevrolet Description

The isolation and prime valve solenoid circuits are supplied with battery power when the ignition is in the ON position. The Electronic Brake Control Module (EBCM) controls the valve functions by grounding the circuit when necessary. The solenoid valve circuit and the solenoid coil are internal to the EBCM. No part of the solenoid circuit is diagnosable external to the EBCM. The DTC sets when there is a malfunction in the solenoid circuit internal to the EBCM only.
OBDII Code C0156 Chevrolet - Right TCS Solenoid #2 Circuit Malfunction - AutoCodes.com
C0156 Chevrolet Code - Right TCS Solenoid #2 Circuit Malfunction

What are the Possible Causes of the DTC C0156 Chevrolet?

  • Faulty Electronic Brake Control Module (EBCM)
  • Electronic Brake Control Module (EBCM) harness is open or shorted
  • Electronic Brake Control Module (EBCM) circuit poor electrical connection

How to Fix the DTC C0156 Chevrolet?

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 C0156 Chevrolet 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 C0156 Chevrolet code?

Need more information on how to fix the C0156 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0156 Chevrolet 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 C0156 Chevrolet Code

1. What are the common symptoms of OBDII code C0156 Chevrolet (Right TCS Solenoid #2 Circuit Malfunction)?

- Common symptoms include the traction control system (TCS) warning light illuminating on the dashboard, issues with traction control engagement, and potential stability control problems.

2. What can cause the OBDII code C0156 Chevrolet to trigger?

- The code can be triggered by a faulty TCS solenoid #2, damaged wiring or connectors in the circuit, or issues with the TCS control module.

3. How can I diagnose the Right TCS Solenoid #2 Circuit Malfunction in my Chevrolet?

- Diagnosing this issue typically involves using a scan tool to read the trouble code, inspecting the TCS solenoid #2 and its connections, and checking for any visible damage to the wiring harness.

4. Can I continue driving my Chevrolet with the C0156 trouble code present?

- It is not recommended to drive the vehicle with the C0156 code active, as it can affect the proper functioning of the traction control system, potentially compromising vehicle safety.

5. Are there any simple repairs I can try to fix the Right TCS Solenoid #2 Circuit Malfunction myself?

- Simple repairs like checking and tightening loose connections, repairing damaged wires, or replacing a faulty TCS solenoid #2 may help resolve the issue in some cases.

6. What are the potential risks of ignoring the C0156 Chevrolet trouble code?

- Ignoring the C0156 code can lead to further damage to the traction control system, reduced vehicle stability, and compromised safety during driving, especially in slippery or challenging road conditions.

7. How much does it typically cost to repair the Right TCS Solenoid #2 Circuit Malfunction in a Chevrolet?

- Repair costs can vary depending on the exact cause of the issue, but it may involve replacing the TCS solenoid, repairing wiring, or addressing other related components. Costs can range from a few hundred to over a thousand dollars.

8. Can a DIY enthusiast with basic automotive knowledge fix the C0156 code issue?

- Depending on the root cause of the problem, a DIY enthusiast with some automotive knowledge may be able to address simple issues like loose connections or damaged wiring. However, more complex repairs may require professional assistance.

9. How long does it usually take to repair the Right TCS Solenoid #2 Circuit Malfunction in a Chevrolet?

- The repair time can vary based on the extent of the issue and the specific repairs needed. Simple fixes like reconnecting wires may take less than an hour, while more involved repairs could take several hours to complete.

10. Is it necessary to reset the trouble codes after fixing the C0156 Chevrolet code?

- Yes, it is recommended to reset the trouble codes using a scan tool after fixing the C0156 code to clear the error from the vehicle's system and ensure proper functioning of the traction control system.

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