Engine-CodesScion – C146B Scion

C146B Scion Code - SRL Solenoid Circuit

Quick Answer

The C146B diagnostic trouble code (DTC) for Scion vehicles refers to an issue with the SRL (Shift Range Lock) solenoid circuit. Common causes include Faulty SRL solenoid, Wiring issues or shorts in the circuit, Blown fuse related to the solenoid 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
C146B Scion indicates SRL Solenoid Circuit.
Common causes
Common causes include Faulty SRL solenoid, Wiring issues or shorts in the circuit, Blown fuse related to the solenoid 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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code C146B Scion Description

The C146B diagnostic trouble code (DTC) for Scion vehicles refers to an issue with the SRL (Shift Range Lock) solenoid circuit. The SRL solenoid is responsible for controlling the locking mechanism that prevents the gear shift lever from being moved out of the "Park" position without the brake pedal being depressed. When this solenoid circuit malfunctions, it can lead to difficulties in shifting gears, potentially causing safety hazards and affecting the vehicle's overall performance.

OBDII Code C146B Scion - SRL Solenoid Circuit
C146B Scion Code - SRL Solenoid Circuit

Common Causes of C146B Scion

  1. Faulty SRL solenoid
  2. Wiring issues or shorts in the circuit
  3. Blown fuse related to the solenoid circuit
  4. PCM malfunction
  5. Corrosion or damage to electrical connectors

Symptoms of C146B Scion

  1. Inability to shift out of "Park" position
  2. Difficulty shifting gears
  3. Illumination of the "Check Engine" light on the dashboard
  4. Transmission slipping or jerking
  5. Unusual noises coming from the transmission

How to Fix C146B Scion

  1. Begin by diagnosing the specific cause of the issue using a scan tool to retrieve the DTC and inspecting the SRL solenoid and related components.
  2. Check the wiring harness for any signs of damage or corrosion, repairing or replacing as necessary.
  3. Test the SRL solenoid for proper operation and replace it if found to be faulty.
  4. Inspect and replace any blown fuses in the solenoid circuit.
  5. Clear the DTC from the PCM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix C146B Scion

The cost of repairing a SRL solenoid circuit issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the parts for this repair can range from $50 to $200, while the labor costs can be anywhere from $100 to $300. Keep in mind that diagnostic time and labor rates can vary, so it's recommended to obtain quotes from local auto repair shops for a more accurate estimate.

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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 C146B Scion Code

1. What does the OBDII code C146B mean on a Scion?

C146B refers to an issue with the SRL (Solenoid Relay) circuit, typically related to the vehicle's anti-lock brake system (ABS).

2. What are the common symptoms of code C146B in a Scion?

Common symptoms include the ABS warning light being illuminated, reduced braking performance, and, in some cases, loss of traction control functionality.

3. What causes the C146B code to be triggered?

The code can be caused by a faulty SRL solenoid, damaged wiring or connectors in the solenoid circuit, or a malfunctioning ABS control module.

4. Can I drive my Scion with the C146B code active?

While the vehicle may still be drivable, it is not recommended as the ABS and traction control systems may not function properly, increasing the risk of an accident.

5. How do I diagnose the C146B code on a Scion?

Start by inspecting the wiring and connectors for damage or corrosion, followed by testing the SRL solenoid and ABS control module using a multimeter or scan tool.

6. How do I fix the C146B code on a Scion?

Repairs may include replacing the SRL solenoid, repairing or replacing damaged wiring, or reprogramming or replacing the ABS control module if necessary.

7. What tools are needed to address the C146B code?

You’ll need a diagnostic scan tool, a multimeter for electrical testing, and possibly basic hand tools for removing and replacing components.

8. Will clearing the C146B code solve the issue?

Clearing the code will temporarily turn off the warning light, but the issue will reappear unless the underlying problem is fixed.

9. How much does it cost to repair the C146B code on a Scion?

Costs can vary widely depending on the specific repair needed, ranging from $100 for simple wiring fixes to $1,000 or more for ABS module replacement.

10. Can a faulty SRL solenoid cause other issues in my Scion?

Yes, a faulty solenoid can lead to degraded ABS and traction control performance, which can compromise vehicle safety during braking or slippery conditions.

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