AutoCodes – Toyota – C142B 2017 Toyota RAV4

C142B 2017 Toyota RAV4 Code - Motor Power Supply Voltage Circuit

Quick Answer

The Motor Relay and motor fail-safe relay are built into the Brake Actuator Assembly. Common causes include Faulty Skid Control ECU (Brake Actuator Assembly), Skid Control ECU harness is open or shorted, Skid Control ECU circuit poor electrical connection. 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 2017 Toyota RAV4 indicates Motor Power Supply Voltage Circuit.
Common causes: Common causes include Faulty Skid Control ECU (Brake Actuator Assembly), Skid Control ECU harness is open or shorted, Skid Control ECU circuit poor electrical connection.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 284

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 Sep 30, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C142B 2017 Toyota RAV4 Description

The Motor Relay and motor fail-safe relay are built into the Brake Actuator Assembly. During ABS, TRAC, VSC, brake hold, or brake assist operation, the Skid Control ECU (Brake Actuator Assembly) turns on the motor relay to run the pump motor in the Brake Actuator Assembly. When a motor system Diagnostic Trouble Code (DTC) is stored, the motor fail-safe relay cuts the power source supply to the motor relay for fail-safe operation.
This DTC may be stored when the voltage to the motor relay power source is lower than the DTC detection condition due to low output from the battery or alternator.

OBDII Code C142B 2017 Toyota RAV4 - Motor Power Supply Voltage Circuit - AutoCodes.com — C142B 2017 Toyota RAV4 Code - Motor Power Supply Voltage Circuit

What does this mean?

What are the Possible Causes of the DTC C142B 2017 Toyota RAV4?

Faulty Skid Control ECU (Brake Actuator Assembly)
Skid Control ECU harness is open or shorted
Skid Control ECU circuit poor electrical connection

How to Fix the DTC C142B 2017 Toyota RAV4?

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 C142B 2017 Toyota RAV4 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.

Need more information about the C142B 2017 Toyota RAV4 code?

Need more information on how to fix the C142B 2017 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C142B 2017 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

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 C142B 2017 Toyota RAV4 Code

1. What does OBDII code C142B for a 2017 Toyota RAV4 indicate?

- OBDII code C142B in a 2017 Toyota RAV4 specifically relates to the Motor Power Supply Voltage Circuit.

2. What are the common symptoms of OBDII code C142B on a 2017 Toyota RAV4?

- Common symptoms of code C142B may include engine hesitation, rough idling, decreased power, or even stalling.

3. What can cause OBDII code C142B to trigger in a 2017 Toyota RAV4?

- The code C142B in a 2017 Toyota RAV4 can be triggered by issues such as a faulty motor power supply, damaged wiring, or a malfunctioning control module.

4. How can I diagnose the Motor Power Supply Voltage Circuit issue related to OBDII code C142B on a 2017 Toyota RAV4?

- Diagnosis involves checking the power supply to the motor, inspecting the wiring for damage, and testing the control module for proper functionality.

5. Are there any safety precautions to consider when addressing OBDII code C142B in a 2017 Toyota RAV4?

- It's important to disconnect the vehicle's battery before attempting any repairs related to the Motor Power Supply Voltage Circuit to prevent electrical hazards.

6. Can I still drive my 2017 Toyota RAV4 with OBDII code C142B present?

- It is not recommended to continue driving your Toyota RAV4 with code C142B present, as it may lead to further damage or safety risks.

7. How much does it typically cost to repair OBDII code C142B on a 2017 Toyota RAV4?

- The cost of repairing OBDII code C142B on a 2017 Toyota RAV4 can vary depending on the exact cause of the issue, but it may range from $200 to $600 or more.

8. Can OBDII code C142B be reset with a simple scan tool on a 2017 Toyota RAV4?

- While you can clear the code with a scan tool, it is important to address the underlying issue causing code C142B to prevent it from reoccurring.

9. Is it possible to prevent OBDII code C142B from appearing in my 2017 Toyota RAV4?

- Regular maintenance, such as checking the electrical system and ensuring proper wiring connections, can help prevent issues leading to code C142B.

10. Should I seek professional help to repair OBDII code C142B on my 2017 Toyota RAV4?

- Due to the complexity of diagnosing and repairing electrical issues like code C142B, it is advisable to consult a qualified mechanic or technician for assistance.