Engine-CodesScion – C142B Scion

C142B Scion Code - Motor Power Supply Voltage Circuit

Quick Answer

The C142B diagnostic trouble code (DTC) for Scion vehicles refers to an issue with the motor power supply voltage circuit. Common causes include Damaged wiring or connectors in the motor power supply circuit, Faulty motor or motor controller, Issues with the power supply or battery. 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
C142B Scion indicates Motor Power Supply Voltage Circuit.
Common causes
Common causes include Damaged wiring or connectors in the motor power supply circuit, Faulty motor or motor controller, Issues with the power supply or battery.
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 17, 2024
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Code C142B Scion Description

The C142B diagnostic trouble code (DTC) for Scion vehicles refers to an issue with the motor power supply voltage circuit. This code indicates that there is a problem with the voltage supply to the motor, which can affect the performance of various systems in the vehicle. The motor power supply voltage circuit is responsible for providing the necessary power to the motor to ensure proper operation. When this circuit malfunctions, it can lead to a variety of issues that can impact the vehicle's performance and drivability.

OBDII Code C142B Scion - Motor Power Supply Voltage Circuit
C142B Scion Code - Motor Power Supply Voltage Circuit

Common Causes of C142B Scion

  1. Damaged wiring or connectors in the motor power supply circuit
  2. Faulty motor or motor controller
  3. Issues with the power supply or battery
  4. Corrosion or poor connections in the electrical system
  5. Software or programming issues related to the motor control unit

Symptoms of C142B Scion

  1. Loss of power or acceleration
  2. Rough idling or engine misfires
  3. Stalling or difficulty starting the engine
  4. Illumination of the check engine light
  5. Vehicle going into limp mode

How to Fix C142B Scion

  1. Perform a comprehensive diagnostic scan to retrieve the fault codes and pinpoint the exact cause of the issue.
  2. Inspect the wiring, connectors, and components in the motor power supply voltage circuit for any signs of damage or corrosion.
  3. Test the motor and motor controller for proper operation and replace if necessary.
  4. Check the power supply and battery to ensure they are providing the correct voltage to the motor.
  5. Clear the fault codes, reset the system, and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix C142B Scion

The typical repair costs for addressing a motor power supply voltage circuit issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts and labor for this type of repair can range from $200 to $800 or more. It's important to note that diagnostic time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher at dealerships or in metropolitan areas. It's advisable to check with local shops for a more accurate estimate based on your specific circumstances.

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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.

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