C146C 2015 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 2015 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 2015 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 2015 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 2015 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 2015 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.
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Frequently Asked Questions about C146C 2015 Toyota RAV4 Code
1. What does the OBDII code C146C mean on a 2015 Toyota RAV4?
C146C refers to "Open in ABS Motor Relay Circuit," indicating an electrical issue in the anti-lock braking system's motor relay circuit.
2. What are the common symptoms of code C146C in a 2015 Toyota RAV4?
Common symptoms include the ABS warning light illuminating, reduced braking performance, and the ABS system not functioning properly during hard braking.
3. What causes the C146C code to appear?
The code can be triggered by a faulty ABS motor relay, damaged wiring or connectors in the circuit, a blown fuse, or a malfunctioning ABS control module.
4. Is it safe to drive with the C146C code active?
While the vehicle may still be drivable, the ABS system may not function correctly, which can impact braking safety in emergency situations or on slippery surfaces.
5. How can I diagnose the C146C code on my Toyota RAV4?
Start by checking the ABS motor relay, inspecting wiring and connectors for damage, testing for proper voltage, and scanning the ABS system for additional codes.
6. How do I fix the C146C code on a 2015 Toyota RAV4?
Repairs may include replacing the ABS motor relay, repairing damaged wiring or connectors, replacing blown fuses, or, in rare cases, replacing the ABS control module.
7. How much does it cost to repair code C146C on a Toyota RAV4?
Repair costs can vary depending on the issue but typically range from $100 to $500, depending on whether the relay, wiring, or control module needs to be replaced.
8. Can I reset the C146C code without fixing the issue?
Clearing the code without addressing the root cause will only temporarily turn off the ABS warning light, and the code is likely to return once the issue is detected again.
9. What tools do I need to troubleshoot the C146C code?
You’ll need an OBDII scanner capable of reading ABS codes, a multimeter to test voltage and continuity, and basic tools to inspect and repair wiring or replace components.
10. Can a bad ABS motor relay cause other codes in the system?
Yes, a faulty ABS motor relay can sometimes trigger additional ABS-related codes due to improper operation of the braking system.
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