C146C Toyota Code - Open In ABS Motor Relay 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
- C146C Toyota indicates Open In ABS Motor Relay 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.
Code C146C Toyota Description
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.
What are the Possible Causes of the DTC C146C Toyota?
- 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 C146C Toyota?
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 C146C Toyota 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 Toyota Models
- C146C 2013 Toyota RAV4 — Open In ABS Motor Relay Circuit
- C146C 2014 Toyota RAV4 — Open In ABS Motor Relay Circuit
- C146C 2015 Toyota RAV4 — Open In ABS Motor Relay Circuit
- C146C 2016 Toyota RAV4 — Open In ABS Motor Relay Circuit
- C146C 2017 Toyota RAV4 — Open In ABS Motor Relay Circuit
- C146C 2018 Toyota RAV4 — Open In ABS Motor Relay Circuit
Frequently Asked Questions about C146C Toyota Code
1. What are the common symptoms of OBDII code C146C in a Toyota related to an open in the ABS motor relay circuit?
- Common symptoms include the ABS warning light illuminating on the dashboard, loss of ABS functionality, and potential braking performance issues.
2. What are some possible causes of an open in the ABS motor relay circuit triggering code C146C in a Toyota?
- Causes can vary but may include a faulty ABS motor relay, damaged wiring or connectors, or a malfunctioning ABS control module.
3. How can I diagnose an open in the ABS motor relay circuit causing OBDII code C146C in my Toyota?
- Diagnosing this issue typically involves using a multimeter to test the continuity of the wiring, checking the condition of the ABS motor relay, and inspecting connectors for damage or corrosion.
4. What are some recommended repair tips for fixing OBDII code C146C due to an open in the ABS motor relay circuit in a Toyota?
- Repair tips may include replacing the faulty ABS motor relay, repairing damaged wiring or connectors, clearing the code with a diagnostic tool, and testing the system to ensure proper functionality.
5. Can I drive my Toyota safely with OBDII code C146C related to an open in the ABS motor relay circuit?
- It is not recommended to drive the vehicle with this issue as it may affect the ABS system's performance, compromising braking safety in certain situations.
6. Is it possible to reset OBDII code C146C in a Toyota related to an open in the ABS motor relay circuit without repairing the issue?
- While you can clear the code using a diagnostic tool, it is crucial to address the underlying problem to ensure the ABS system functions correctly and the code does not reappear.
7. Are there any safety implications if OBDII code C146C caused by an open in the ABS motor relay circuit is left unattended in a Toyota?
- Ignoring this issue may lead to potential ABS system failure, compromising the vehicle's ability to handle emergency braking situations safely.
8. Could environmental factors contribute to triggering OBDII code C146C due to an open in the ABS motor relay circuit in a Toyota?
- Extreme weather conditions, moisture, or exposure to road debris can potentially damage the ABS motor relay circuit, leading to the triggering of this code.
9. Is it necessary to visit a mechanic to address OBDII code C146C related to an open in the ABS motor relay circuit in a Toyota, or can it be fixed at home?
- Depending on your technical skills and access to tools, you may be able to address this issue at home. However, consulting a professional mechanic is recommended for accurate diagnosis and repair.
10. How can I prevent OBDII code C146C from reoccurring in my Toyota after repairing an open in the ABS motor relay circuit?
- Regularly inspecting and maintaining the ABS system, ensuring proper wiring connections, and addressing any issues promptly can help prevent the recurrence of this code.
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