AutoCodes – Toyota – C1344 Toyota

C1344 Toyota Code - Malfunction In Hydraulic System Rear Left

Quick Answer

The Skid Control ECU controls braking force according to the hybrid system regenerative braking force and inputs the fluid pressure necessary for operating each wheel cylinder according to the wheel cylinder pressure sensor. Common causes include Fluid leakage, Faulty Brake Actuator Assembly, Brake Actuator Assembly 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: C1344 Toyota indicates Malfunction In Hydraulic System Rear Left.
Common causes: Common causes include Fluid leakage, Faulty Brake Actuator Assembly, Brake Actuator Assembly 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 18,954

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 07, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1344 Toyota Description

The Skid Control ECU controls braking force according to the hybrid system regenerative braking force and inputs the fluid pressure necessary for operating each wheel cylinder according to the wheel cylinder pressure sensor. DTCs may be stored if brake fluid leaks, wheel cylinder vibrates due to uneven wear of the brake disc rotor, or foreign matter enters the solenoid valve. DTCs may be stored if the line pressure drops during air bleeding.

OBDII Code C1344 Toyota - Malfunction In Hydraulic System Rear Left - AutoCodes.com — C1344 Toyota Code - Malfunction In Hydraulic System Rear Left

What does this mean?

What are the Possible Causes of the DTC C1344 Toyota?

Fluid leakage
Faulty Brake Actuator Assembly
Brake Actuator Assembly harness is open or shorted
Brake Actuator Assembly circuit poor electrical connection

How to Fix the DTC C1344 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 does this mean?

Code Tech Notes

When replacing the brake pads on an ECB (Electronically Controlled Brake) system equipped vehicle, retracting the caliper's piston and installing new brake pads may cause Diagnostic Trouble Codes (DTCs) to set the next time the brake pedal is depressed. Using an OBDII scanner clear the code and test drive vehicle. If the DTC does not return, the repair is complete. If the DTC returns, perform diagnosis as described in the Repair Manual.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1344 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.

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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 C1344 Toyota Code

1. What are the common symptoms of OBDII code C1344 in a Toyota, indicating a malfunction in the hydraulic system rear left?

The common symptoms include the ABS warning light illuminating on the dashboard, potential loss of traction control functionality, and unusual noises from the rear left of the vehicle during braking.

2. What are some possible causes of OBDII code C1344 in a Toyota?

Possible causes of this code include a faulty wheel speed sensor, damaged wiring in the hydraulic system, issues with the ABS module, or a malfunctioning hydraulic control unit.

3. How can I diagnose the cause of OBDII code C1344 in my Toyota?

Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault codes, conducting a visual inspection of the rear left hydraulic system components, and testing the wheel speed sensor for proper functionality.

4. Can I continue driving my Toyota with OBDII code C1344 present?

It is not recommended to continue driving the vehicle with this code present, as it can affect the performance of the ABS system and potentially compromise the safety of the vehicle.

5. How can I repair OBDII code C1344 in my Toyota?

Repairing this code may involve replacing the faulty wheel speed sensor, repairing damaged wiring, or addressing any issues with the ABS module or hydraulic control unit. It is recommended to consult with a professional mechanic for an accurate diagnosis and repair.

6. Is it possible to reset OBDII code C1344 in a Toyota without fixing the underlying issue?

While you can clear the fault code using an OBDII scanner, the code is likely to reappear if the root cause of the malfunction in the hydraulic system rear left is not addressed.

7. How much does it typically cost to repair OBDII code C1344 in a Toyota?

The cost of repairing this code can vary depending on the specific cause of the issue, the extent of the damage, and the labor rates of the repair shop. It is advisable to obtain multiple quotes from different mechanics to compare prices.

8. Can weather conditions affect the occurrence of OBDII code C1344 in a Toyota?

Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate issues with the hydraulic system and trigger the malfunction indicated by code C1344.

9. Are there any preventive maintenance measures to avoid OBDII code C1344 in a Toyota?

Regularly inspecting the ABS system components, ensuring proper maintenance of the hydraulic system, and promptly addressing any warning lights on the dashboard can help prevent issues leading to code C1344.

10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code C1344 in a Toyota?

While some simple tasks like checking wiring connections can be done by a DIY enthusiast, diagnosing and repairing the specific cause of code C1344 may require advanced tools and expertise, so it is advisable to seek professional help.