C146C 2018 Toyota RAV4 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 2018 Toyota RAV4 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 2018 Toyota RAV4 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 2018 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 C146C 2018 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 C146C 2018 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 C146C 2018 Toyota RAV4 code?
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Frequently Asked Questions about C146C 2018 Toyota RAV4 Code
1. What does the OBDII code C146C mean on a 2018 Toyota RAV4?
Code C146C indicates an open circuit in the ABS motor relay, which affects the functionality of the anti-lock braking system (ABS).
2. What are the symptoms of code C146C in a 2018 Toyota RAV4?
Common symptoms include an illuminated ABS warning light, loss of ABS functionality, and potentially reduced braking performance in slippery conditions.
3. What causes the C146C code to appear on a Toyota RAV4?
Causes may include a faulty ABS motor relay, damaged wiring or connectors, corrosion in the circuit, or a malfunctioning ABS control module.
4. Can I still drive my 2018 Toyota RAV4 with a C146C code?
While the vehicle may still be drivable, the ABS system will not function properly, increasing the risk of skidding or losing control during emergency braking.
5. How do I diagnose the C146C code on my Toyota RAV4?
Start by inspecting the ABS motor relay, checking for damaged or corroded wires and connectors, and testing the relay for proper operation using a multimeter.
6. How do I fix the C146C code on a 2018 Toyota RAV4?
Repairs may involve replacing the ABS motor relay, repairing damaged wiring, cleaning corroded connectors, or, in rare cases, replacing the ABS control module.
7. What tools are needed to troubleshoot the C146C code?
You’ll need an OBDII scanner, a multimeter, and possibly basic hand tools to inspect and test the ABS motor relay and wiring.
8. How much does it cost to repair the C146C code on a Toyota RAV4?
Costs vary depending on the issue but typically range between $50 and $250 for parts and labor, with higher costs if the ABS control module needs replacement.
9. Can a failing ABS motor relay cause other issues in my vehicle?
Yes, a failing relay can disable the entire ABS system, potentially leading to longer stopping distances and reduced control during emergency braking.
10. Is the C146C code covered under warranty for a 2018 Toyota RAV4?
It may be covered if the vehicle is still under the factory warranty or if the issue is related to a recall. Check with your dealer for confirmation.
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