AutoCodes – Toyota – C1218 Toyota

C1218 Toyota Code - SMC2 Circuit

Quick Answer

The Anti-Lock Brake System (ABS) solenoid turns on when signals are received from the ABS Electronic Control Unit (ECU) and controls pressure acting on calipers/wheel cylinders, thus controlling braking force. Common causes include Faulty Anti-Lock Brake System (ABS) Electronic Control Unit (ECU) (ABS Actuator), ABS ECU harness is open or shorted, ABS 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: C1218 Toyota indicates SMC2 Circuit.
Common causes: Common causes include Faulty Anti-Lock Brake System (ABS) Electronic Control Unit (ECU) (ABS Actuator), ABS ECU harness is open or shorted, ABS 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 1,885

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 Aug 24, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1218 Toyota Description

The Anti-Lock Brake System (ABS) solenoid turns on when signals are received from the ABS Electronic Control Unit (ECU) and controls pressure acting on calipers/wheel cylinders, thus controlling braking force. The ABS ECU sets the OBDII code when the Solenoid is not to factory specifications. The solenoid and solenoid relay is built into the ABS ECU.

OBDII Code C1218 Toyota - SMC2 Circuit - AutoCodes.com — C1218 Toyota Code - SMC2 Circuit

What does this mean?

What are the Possible Causes of the DTC C1218 Toyota?

Faulty Anti-Lock Brake System (ABS) Electronic Control Unit (ECU) (ABS Actuator)
ABS ECU harness is open or shorted
ABS ECU circuit poor electrical connection

How to Fix the DTC C1218 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 C1218 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.

Need more information about the C1218 Toyota code?

Need more information on how to fix the C1218 Toyota code? Get Access to Factory Service Manuals

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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 C1218 Toyota Code

1. What are the common symptoms of OBDII code C1218 Toyota (SMC2 Circuit)?

- Common symptoms include the ABS warning light being illuminated on the dashboard, potential loss of ABS functionality, and possible traction control issues.

2. What can cause the OBDII code C1218 Toyota to trigger?

- The code C1218 Toyota (SMC2 Circuit) is typically triggered by a malfunction in the Steering Angle Sensor (SAS) or faulty wiring in the SMC2 circuit.

3. How serious is the OBDII code C1218 Toyota (SMC2 Circuit)?

- The code C1218 Toyota (SMC2 Circuit) is considered a moderate issue. While it may not immediately affect the drivability of the vehicle, it can impact the ABS and traction control systems.

4. How can I diagnose the OBDII code C1218 Toyota (SMC2 Circuit)?

- Diagnosing the code C1218 Toyota involves using a diagnostic scanner to read the trouble codes, testing the SAS for proper operation, and checking the wiring in the SMC2 circuit for any faults.

5. What are the possible repair options for OBDII code C1218 Toyota (SMC2 Circuit)?

- Repair options for the code C1218 Toyota may include recalibrating or replacing the Steering Angle Sensor, repairing any damaged wiring in the SMC2 circuit, or resetting the ABS system.

6. Can I drive my vehicle with the OBDII code C1218 Toyota (SMC2 Circuit) present?

- It is not recommended to drive the vehicle with the code C1218 Toyota active, as it may compromise the operation of the ABS and traction control systems, affecting the vehicle's safety.

7. How much does it typically cost to repair the OBDII code C1218 Toyota (SMC2 Circuit)?

- The cost of repairing the code C1218 Toyota can vary depending on the extent of the issue. It may range from a few hundred dollars for sensor recalibration to over a thousand dollars for sensor replacement and wiring repair.

8. Can the OBDII code C1218 Toyota (SMC2 Circuit) be reset without repairs?

- While the code C1218 Toyota can be cleared with a diagnostic scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. How long does it typically take to repair the OBDII code C1218 Toyota (SMC2 Circuit)?

- The repair time for the code C1218 Toyota can vary based on the specific issue. Simple recalibration may take an hour or two, while sensor replacement and wiring repairs could take several hours to complete.

10. Are there any DIY tips for troubleshooting the OBDII code C1218 Toyota (SMC2 Circuit)?

- DIY troubleshooting tips for the code C1218 Toyota include checking the SAS connections, inspecting the wiring harness for any visible damage, and ensuring all fuses related to the ABS system are intact.