AutoCodes – Toyota – C1315 Toyota

C1315 Toyota Code - Changeover Solenoid Malfunction SMC1

Quick Answer

Each solenoid adjusts pressure which affects each wheel cylinder according to signals from the Skid Control Electronic Control Unit (ECU) and controls the vehicle. Common causes include Faulty Brake Actuator Assembly, Faulty Skid Control Electronic Control Unit (ECU), Skid Control ECU harness is open or shorted. 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: C1315 Toyota indicates Changeover Solenoid Malfunction SMC1.
Common causes: Common causes include Faulty Brake Actuator Assembly, Faulty Skid Control Electronic Control Unit (ECU), Skid Control ECU harness is open or shorted.
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 6,105

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1315 Toyota Description

Each solenoid adjusts pressure which affects each wheel cylinder according to signals from the Skid Control Electronic Control Unit (ECU) and controls the vehicle. The Master Cut Solenoid (SMC 1/2) is closed and blocks the master cylinder pressure from the Electronically Controlled Brake (ECB) control pressure when the system is normal. The master cut solenoid is open and sends the master cylinder fluid pressure to the non–assisted brake wheel cylinders during the fail safe due to system malfunction.

OBDII Code C1315 Toyota - Changeover Solenoid Malfunction SMC1 - AutoCodes.com — C1315 Toyota Code - Changeover Solenoid Malfunction SMC1

What does this mean?

What are the Possible Causes of the DTC C1315 Toyota?

Faulty Brake Actuator Assembly
Faulty Skid Control Electronic Control Unit (ECU)
Skid Control ECU harness is open or shorted
Skid Control ECU circuit poor electrical connection

How to Fix the DTC C1315 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 C1315 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 C1315 Toyota code?

Need more information on how to fix the C1315 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 C1315 Toyota Code

1. What are the common symptoms of OBDII code C1315 Toyota (Changeover Solenoid Malfunction SMC1)?

The common symptoms include difficulty shifting gears, harsh shifting, transmission slippage, and an illuminated check engine light.

2. What can cause the OBDII code C1315 Toyota to trigger?

The code C1315 is typically triggered by a faulty changeover solenoid or issues with the transmission control module.

3. How do I diagnose the Changeover Solenoid Malfunction SMC1 in a Toyota vehicle?

Diagnosis involves using an OBDII scanner to read the code, checking the wiring and connectors for any damage, and testing the changeover solenoid's resistance.

4. Can I continue driving my Toyota with OBDII code C1315 present?

It is not recommended to drive with the code active, as it can lead to further damage to the transmission system. It's best to address the issue promptly.

5. What are the repair options for fixing the Changeover Solenoid Malfunction SMC1 in a Toyota?

Repair options include replacing the faulty changeover solenoid, repairing any damaged wiring or connectors, or reprogramming the transmission control module.

6. How much does it cost to repair OBDII code C1315 in a Toyota?

The cost of repair can vary depending on the extent of the damage and the specific repairs needed. It's recommended to consult with a mechanic for an accurate estimate.

7. Can I reset the OBDII code C1315 Toyota on my own?

You can try resetting the code using an OBDII scanner, but it's important to address the underlying issue causing the code to prevent it from reoccurring.

8. Are there any preventive maintenance tips to avoid OBDII code C1315 in a Toyota?

Regularly servicing the transmission system, checking for any signs of wear or damage, and addressing any issues promptly can help prevent the code C1315 from appearing.

9. Is the OBDII code C1315 Toyota a common issue in certain Toyota models?

The code C1315 related to the Changeover Solenoid Malfunction SMC1 is more commonly seen in specific Toyota models with automatic transmissions, such as the Camry and Corolla.

10. How urgent is it to address OBDII code C1315 Toyota once it appears?

It is recommended to address the code as soon as possible to prevent further damage to the transmission system and ensure the vehicle operates safely and efficiently.