AutoCodes – Lexus – C146A Lexus

C146A Lexus Code - SRR Solenoid Circuit

Quick Answer

The SRR Solenoid turns on when the signal is received from the Skid Control ECU (Brake Actuator Assembly) and they control the pressure acting on the wheel cylinders to control the braking force. Common causes include Faulty Skid Control ECU (Brake Actuator Assembly). 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: C146A Lexus indicates SRR Solenoid Circuit.
Common causes: Common causes include Faulty Skid Control ECU (Brake Actuator Assembly).
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 1,291

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 Jan 18, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C146A Lexus Description

The SRR Solenoid turns on when the signal is received from the Skid Control ECU (Brake Actuator Assembly) and they control the pressure acting on the wheel cylinders to control the braking force. The Skid Control ECU (Brake Actuator Assembly) monitors the SRR Solenoid. The Skid Control ECU (Brake Actuator Assembly) sets the Diagnostic Trouble Code (DTC) when the SRR Solenoid is not to factory specifications.

OBDII Code C146A Lexus - SRR Solenoid Circuit - AutoCodes.com — C146A Lexus Code - SRR Solenoid Circuit

What does this mean?

What are the Possible Causes of the DTC C146A Lexus?

Faulty Skid Control ECU (Brake Actuator Assembly)

How to Fix the DTC C146A Lexus?

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 C146A Lexus 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.

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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 C146A Lexus Code

1. What does the OBDII code C146A mean on a Lexus?

The C146A code indicates an issue with the SRR (Skid Control Rear Right) Solenoid Circuit, commonly related to the vehicle's ABS or traction control system.

2. What are the symptoms of code C146A in a Lexus?

Common symptoms include an illuminated ABS or traction control warning light, decreased braking performance, or the ABS system not functioning correctly.

3. What causes the C146A code to appear on a Lexus?

Potential causes include a faulty SRR solenoid, damaged wiring or connectors in the solenoid circuit, or a malfunctioning ABS control module.

4. Can I still drive my Lexus with the C146A code?

While the vehicle might still be drivable, it's not recommended as the ABS and traction control systems may not function properly, increasing the risk of accidents in slippery conditions.

5. How is the C146A code diagnosed?

A technician will use a scan tool to confirm the code, inspect the SRR solenoid circuit wiring and connectors, and test the solenoid for proper operation.

6. How do you fix the C146A code on a Lexus?

Repairs may involve replacing the faulty SRR solenoid, repairing or replacing damaged wiring, or addressing issues in the ABS control module.

7. What tools are needed to fix the C146A code?

Tools required may include a diagnostic scan tool, multimeter for electrical testing, and basic automotive repair tools to access the solenoid and wiring.

8. How much does it cost to repair a C146A code on a Lexus?

Repair costs vary depending on the exact issue, but replacing a solenoid or repairing wiring can range from $150 to $600, including parts and labor.

9. Can a low battery cause the C146A code to trigger?

A low or weak battery can sometimes cause electrical faults or communication issues, but itâ€™s not a common cause for this specific code.

10. Is it possible to prevent the C146A code from occurring?

Regular vehicle maintenance, including inspecting wiring and ensuring the ABS system components are clean and in good working order, can help prevent this issue.