AutoCodes – Lexus – C1343 Lexus

C1343 Lexus Code - Malfunction In Hydraulic System Rear Right

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: C1343 Lexus indicates Malfunction In Hydraulic System Rear Right.
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 7,582

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 C1343 Lexus 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 C1343 Lexus - Malfunction In Hydraulic System Rear Right - AutoCodes.com — C1343 Lexus Code - Malfunction In Hydraulic System Rear Right

What does this mean?

What are the Possible Causes of the DTC C1343 Lexus?

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 C1343 Lexus?

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 C1343 Lexus 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 C1343 Lexus Code

1. What are the common symptoms of OBDII code C1343 in a Lexus related to the malfunction in the hydraulic system rear right?

- Common symptoms include the illumination of the ABS warning light on the dashboard, potential loss of brake performance, and unusual noises coming from the rear right wheel area.

2. What are some possible causes of OBDII code C1343 in a Lexus indicating a malfunction in the hydraulic system rear right?

- The code C1343 in a Lexus can be triggered by issues such as a faulty hydraulic brake actuator, damaged wheel speed sensor, wiring problems, or low brake fluid levels.

3. How can I diagnose the OBDII code C1343 in a Lexus related to a malfunction in the hydraulic system rear right?

- Diagnosis typically involves using a professional OBDII scanner to read the fault code, inspecting the hydraulic brake system components for any visible damage, and conducting a thorough system check.

4. Is it safe to continue driving a Lexus with OBDII code C1343 indicating a malfunction in the hydraulic system rear right?

- It is not recommended to continue driving the vehicle with this code present, as it may lead to brake failure or compromised braking performance, posing a safety risk.

5. Can I repair OBDII code C1343 in a Lexus indicating a malfunction in the hydraulic system rear right on my own?

- Repairing this code may require advanced automotive knowledge and specialized tools. It is advisable to seek professional assistance to accurately diagnose and fix the underlying issue.

6. How much does it typically cost to repair OBDII code C1343 in a Lexus associated with a malfunction in the hydraulic system rear right?

- The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor charges, and diagnostic fees, which can amount to a few hundred dollars.

7. Is there any preventive maintenance I can undertake to avoid OBDII code C1343 in a Lexus related to the hydraulic system rear right malfunction?

- Regularly inspecting the brake system, ensuring proper brake fluid levels, and addressing any unusual noises or warning lights promptly can help prevent issues leading to this OBDII code.

8. Can weather conditions affect the occurrence of OBDII code C1343 in a Lexus indicating a malfunction in the hydraulic system rear right?

- Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate existing issues in the hydraulic brake system, leading to the triggering of this code.

9. How urgent is it to address OBDII code C1343 in a Lexus signifying a malfunction in the hydraulic system rear right?

- It is crucial to address this code promptly to ensure the safe operation of the vehicle and prevent any further damage to the brake system components.

10. Are there any recalls or technical service bulletins related to OBDII code C1343 in a Lexus linked to a malfunction in the hydraulic system rear right?

- It is advisable to check with the manufacturer or a certified Lexus dealership for any relevant recalls or technical service bulletins that may pertain to this specific OBDII code and issue.