C146A 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 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.
Code C146A Description
What are the Possible Causes of the DTC C146A?
- Faulty Skid Control ECU (Brake Actuator Assembly)
How to Fix the DTC C146A?
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 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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Information for Specific Makes
- C146A Lexus — SRR Solenoid Circuit
- C146A Scion — SRR Solenoid Circuit
- C146A Toyota — SRR Solenoid Circuit
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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