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Engine-Codes – Generic – C146A

C146A Code - SRR Solenoid Circuit

Quick Answer

The C146A code indicates a problem with the SRR (Side Restraint System) solenoid circuit in the vehicle. Common causes include Faulty SRR solenoid, Damaged wiring or connectors in the SRR solenoid circuit, Corrosion or poor connections in the circuit. 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 indicates SRR Solenoid Circuit.
Common causes
Common causes include Faulty SRR solenoid, Damaged wiring or connectors in the SRR solenoid circuit, Corrosion or poor connections in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code C146A Description

The C146A code indicates a problem with the SRR (Side Restraint System) solenoid circuit in the vehicle. The SRR solenoid is a component of the side airbag system, responsible for deploying the side airbags in the event of a side impact collision. When this code is triggered, it means that the control module has detected an issue with the circuit that controls the activation of the side airbags.

OBDII Code C146A - SRR Solenoid Circuit
C146A Code - SRR Solenoid Circuit

Common Causes of C146A

  1. Faulty SRR solenoid.
  2. Damaged wiring or connectors in the SRR solenoid circuit.
  3. Corrosion or poor connections in the circuit.
  4. Issues with the airbag control module.
  5. Vehicle collision or impact that has damaged the SRR solenoid circuit.

Symptoms of C146A

  1. Illuminated airbag warning light on the dashboard.
  2. Side airbags may not deploy in a collision.
  3. Intermittent or inconsistent deployment of side airbags.
  4. Ongoing diagnostic trouble codes related to the SRR solenoid circuit.

How to Fix C146A

  1. Diagnose the issue by using a scan tool to retrieve the specific trouble code and pinpoint the exact location of the fault.
  2. Inspect the wiring and connectors in the SRR solenoid circuit for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the SRR solenoid itself to determine if it is functioning correctly. Replace the solenoid if it is found to be faulty.
  4. Clear the trouble code from the vehicle's memory using the scan tool.
  5. Perform a test drive to verify that the issue has been resolved and that the side airbags deploy as intended.

Cost to Fix C146A

The cost of repairing the SRR solenoid circuit can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts for this repair could range from $100 to $300, while labor costs could be between $100 to $200. Overall, the total repair costs for this issue could be around $200 to $500. It is important to note that these are rough estimates, and actual costs may differ based on the vehicle's make and model, the location of the repair shop, and any additional diagnostic or repair work required. It is recommended to consult with a professional mechanic for a more accurate cost estimate.

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Code C146A 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 C146A Code

1. What does OBDII code C146A mean?

C146A indicates an issue with the SRR (Secondary Ride-Height Rear) solenoid circuit, typically related to the vehicle's suspension system.

2. What are the common symptoms of code C146A?

Symptoms may include a suspension warning light on the dashboard, uneven ride height, a rough ride, or noticeable sagging in the rear of the vehicle.

3. What causes the C146A code to appear?

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

4. Can I drive with the C146A code active?

While you may be able to drive, it is not recommended as the suspension system may not function properly, potentially affecting ride quality and vehicle handling.

5. How do I diagnose the C146A code?

Diagnose by inspecting the SRR solenoid, checking the wiring and connectors for damage or corrosion, and performing continuity and resistance tests on the circuit.

6. How is the C146A code repaired?

Repairs may involve replacing the SRR solenoid, repairing damaged wiring or connectors, or reprogramming or replacing the control module if necessary.

7. How much does it cost to fix the C146A code?

Repair costs vary but typically range from $150 to $500, depending on whether the solenoid, wiring, or control module needs replacement.

8. Can a blown fuse cause the C146A code?

Yes, a blown fuse in the suspension system circuit can disrupt power to the SRR solenoid and trigger the code.

9. Will clearing the C146A code solve the issue?

Clearing the code without addressing the root cause will only temporarily remove the warning, and the code will likely return.

10. Is the C146A code manufacturer-specific?

Some aspects of the code may be specific to certain manufacturers, so it’s important to consult your vehicle’s service manual for precise details.

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