C146C Scion 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 Scion 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 Scion 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 Scion?
- 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 Scion?
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 Scion 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 Scion code?
Need more information on how to fix the C146C Scion code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C146C Scion code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about C146C Scion Code
1. What does the OBDII code C146C mean on a Scion?
C146C indicates an open circuit in the ABS motor relay, which is part of the Anti-Lock Braking System (ABS).
2. What are the symptoms of the C146C code in a Scion?
Common symptoms include the ABS warning light turning on, reduced braking performance, and the ABS system not functioning properly.
3. What causes the C146C code to appear?
The code is typically caused by a faulty ABS motor relay, damaged wiring or connectors in the circuit, or a malfunction in the ABS control module.
4. Can I still drive my Scion with the C146C code?
While the car may still be drivable, the ABS system may not work correctly, increasing the risk of wheel lockup and reduced safety during emergency braking.
5. How do I diagnose the C146C code in my Scion?
Start by inspecting the ABS motor relay, checking for damaged wires or connectors, and testing the relay and circuit for continuity with a multimeter.
6. How can I fix the C146C code on my Scion?
Repairs may include replacing the ABS motor relay, repairing or replacing damaged wiring, 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 basic tools to inspect and test the ABS motor relay and wiring.
8. How much does it cost to fix the C146C code?
Repair costs can range from $50 to $300, depending on whether the issue is with the relay, wiring, or control module.
9. Can a low battery cause the C146C code to appear?
Yes, a weak or failing battery can cause voltage issues that may trigger the C146C code in some cases.
10. Does clearing the code fix the problem?
Clearing the code may temporarily turn off the warning light, but the underlying issue must be repaired to prevent the code from returning.
Discuss the causes and fixes for C146C Scion OBDII Code
Code C146C Scion comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
