AutoCodes – Toyota – C142B 2016 Toyota RAV4

C142B 2016 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 2016 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.

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Code Popularity 721

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 30, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C142B 2016 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 2016 Toyota RAV4 - Motor Power Supply Voltage Circuit - AutoCodes.com — C142B 2016 Toyota RAV4 Code - Motor Power Supply Voltage Circuit

What does this mean?

What are the Possible Causes of the DTC C142B 2016 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 2016 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 2016 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 2016 Toyota RAV4 code?

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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 C142B 2016 Toyota RAV4 Code

1. What does the OBDII code C142B for a 2016 Toyota RAV4 indicate?

The code C142B in a 2016 Toyota RAV4 refers to a Motor Power Supply Voltage Circuit issue.

2. What are the common symptoms of OBDII code C142B in a 2016 Toyota RAV4?

Common symptoms of code C142B in a 2016 Toyota RAV4 include issues with acceleration, rough idling, and poor engine performance.

3. What are the possible causes of OBDII code C142B in a 2016 Toyota RAV4?

Potential causes of code C142B in a 2016 Toyota RAV4 include a faulty power supply to the motor, damaged wiring or connectors, or a malfunctioning motor control module.

4. How can I diagnose the OBDII code C142B in my 2016 Toyota RAV4?

Diagnosing code C142B in a 2016 Toyota RAV4 involves using a scan tool to check for the specific error code, inspecting the motor power supply circuit, and testing the components involved in the circuit.

5. Can I drive my 2016 Toyota RAV4 with the OBDII code C142B?

It is not recommended to drive your 2016 Toyota RAV4 with the OBDII code C142B as it can lead to further damage to the motor or other components.

6. How can I repair the Motor Power Supply Voltage Circuit issue indicated by OBDII code C142B in my 2016 Toyota RAV4?

Repairing the Motor Power Supply Voltage Circuit issue involves identifying and fixing the root cause, which may include repairing or replacing damaged wiring, connectors, or the motor control module.

7. Is it safe to reset the OBDII code C142B in my 2016 Toyota RAV4 using a scan tool?

While you can reset the code using a scan tool, it is crucial to address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it cost to repair the Motor Power Supply Voltage Circuit problem related to code C142B in a 2016 Toyota RAV4?

The cost of repairing the Motor Power Supply Voltage Circuit issue can vary depending on the specific cause of the problem and the labor rates in your area.

9. Can a DIY enthusiast fix the OBDII code C142B in a 2016 Toyota RAV4?

While some aspects of diagnosing and repairing the issue related to code C142B may be tackled by a DIY enthusiast, it is recommended to seek professional help for accurate diagnosis and repair.

10. How often does the OBDII code C142B occur in a 2016 Toyota RAV4?

The occurrence of code C142B in a 2016 Toyota RAV4 can vary and depends on factors such as driving conditions, maintenance history, and the overall health of the vehicle's electrical system.