AutoCodes – Saturn – C0146 Saturn

C0146 Saturn Code - Left 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: C0146 Saturn indicates Left 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 1,074

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 C0146 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 C0146 Saturn - Left TCS Solenoid #2 Circuit Malfunction - AutoCodes.com — C0146 Saturn Code - Left TCS Solenoid #2 Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC C0146 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 C0146 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 C0146 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 C0146 Saturn 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 C0146 Saturn Code

1. What does the OBDII code C0146 mean on a Saturn?

C0146 indicates a malfunction in the Left TCS (Traction Control System) Solenoid #2 Circuit, meaning thereâ€™s an issue with the wiring, solenoid, or related components.

2. What are the common symptoms of code C0146 on a Saturn?

Symptoms include the ABS or traction control warning light illuminating, reduced traction control functionality, or the traction control system failing to operate properly.

3. What causes the C0146 code to appear?

Common causes include damaged or corroded wiring, a faulty TCS solenoid, issues with a connector, or a problem in the ABS control module.

4. Can I drive my Saturn with the C0146 code active?

Yes, but caution is advised as the traction control system may be disabled, which could affect handling and safety in slippery conditions.

5. How do I diagnose the C0146 code on my Saturn?

Start by inspecting the wiring and connectors for damage or corrosion. Use a multimeter to check the circuit continuity and test the TCS solenoid for functionality.

6. How do I fix the C0146 code on a Saturn?

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

7. How much does it cost to repair the C0146 code on a Saturn?

Repair costs vary but typically range from $100 to $300, depending on whether wiring repairs or solenoid replacements are needed.

8. Can a faulty ABS control module cause the C0146 code?

Yes, though itâ€™s less common. A malfunctioning ABS module can misinterpret signals or fail to control the TCS solenoid properly.

9. How can I prevent the C0146 code from recurring?

Regularly inspect and maintain the wiring, connectors, and TCS components, especially during routine brake inspections.

10. Will clearing the C0146 code fix the issue permanently?

No, clearing the code will only temporarily turn off the warning light. The underlying issue must be diagnosed and repaired to prevent the code from returning.