AutoCodes – Saturn – C0156 Saturn

C0156 Saturn 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 Saturn 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.

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Code Popularity 1,109

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 May 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0156 Saturn 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 Saturn - Right TCS Solenoid #2 Circuit Malfunction - AutoCodes.com — C0156 Saturn Code - Right TCS Solenoid #2 Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC C0156 Saturn?

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 Saturn?

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 Saturn 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 Saturn code?

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

Need Help with the Code?

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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 Saturn Code

1. What does the OBDII code C0156 mean on a Saturn vehicle?

C0156 indicates a malfunction in the Right TCS (Traction Control System) Solenoid #2 Circuit, which is responsible for regulating traction control on the right side of the vehicle.

2. What are the common symptoms of code C0156 in a Saturn?

Symptoms may include the ABS or traction control warning light illuminating, reduced traction control functionality, or inconsistent braking performance on the right side.

3. What causes the C0156 code to appear in a Saturn?

Common causes include a faulty TCS solenoid, damaged wiring or connectors in the circuit, corrosion in the electrical connections, or an issue with the ABS module.

4. Can I still drive my Saturn with the C0156 code?

While the vehicle may still be drivable, the traction control system may not function properly, increasing the risk of loss of control in slippery conditions. Itâ€™s best to address the issue promptly.

5. How do you diagnose the C0156 code on a Saturn?

Diagnosis involves using an OBDII scanner, inspecting the TCS solenoid circuit wiring and connectors for damage or corrosion, and testing the solenoid for proper operation.

6. How can I fix the C0156 code in my Saturn?

Repairs may include replacing the TCS solenoid, repairing or replacing damaged wiring or connectors, cleaning corroded connections, or reprogramming or replacing the ABS module if necessary.

7. How much does it cost to repair code C0156 in a Saturn?

The repair cost varies depending on the exact issue. Replacing a TCS solenoid may cost $100-$300, while ABS module repairs or wiring fixes can range from $300 to $800.

8. What tools are needed to troubleshoot the C0156 code?

Youâ€™ll typically need an OBDII scanner, a multimeter for testing electrical connections, and access to the vehicleâ€™s wiring diagrams for the TCS solenoid circuit.

9. Can a weak battery cause the C0156 code on a Saturn?

Yes, a weak or failing battery can cause voltage irregularities, potentially triggering the C0156 code. Ensure the battery and charging system are functioning correctly.

10. Does clearing the C0156 code solve the problem permanently?

Clearing the code may temporarily turn off the warning light, but the underlying issue must be fixed to prevent the code from returning.