AutoCodes – Hyundai – C1355 Hyundai

C1355 Hyundai Code - Pressure Sensor Electrical Circuit

Quick Answer

The Pressure Sensor is installed in the Hydraulic and Electronic Control Unit (HECU) the purpose of sensing the driver's braking intention. Common causes include Faulty Pressure Sensor in Hydraulic and Electronic Control Unit (HECU), Hydraulic and Electronic Control Unit (HECU) harness is open or shorted, Hydraulic and Electronic Control Unit (HECU) 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
C1355 Hyundai indicates Pressure Sensor Electrical Circuit.
Common causes
Common causes include Faulty Pressure Sensor in Hydraulic and Electronic Control Unit (HECU), Hydraulic and Electronic Control Unit (HECU) harness is open or shorted, Hydraulic and Electronic Control Unit (HECU) 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 5,889
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 10, 2020
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Code C1355 Hyundai Description

The Pressure Sensor is installed in the Hydraulic and Electronic Control Unit (HECU) the purpose of sensing the driver's braking intention. This sensor has two circuits to measure the current pressure and one circuit to measure the brake oil's temperature. The HECU compares two signals of the pressure sensor and if it differs with the normal range, the HECU would judge that the pressure sensor has a fault. The HECU measures the pressure value by the ratio of signal voltage to supply voltage. In a case of Smart Cruise Control (SCC) system applied, the two more pressure sensors are added to measure the brake oil's pressure of wheel.
OBDII Code C1355 Hyundai - Pressure Sensor Electrical Circuit - AutoCodes.com
C1355 Hyundai Code - Pressure Sensor Electrical Circuit

What are the Possible Causes of the DTC C1355 Hyundai?

  • Faulty Pressure Sensor in Hydraulic and Electronic Control Unit (HECU)
  • Hydraulic and Electronic Control Unit (HECU) harness is open or shorted
  • Hydraulic and Electronic Control Unit (HECU) circuit poor electrical connection

How to Fix the DTC C1355 Hyundai?

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 C1355 Hyundai 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 C1355 Hyundai code?

Need more information on how to fix the C1355 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1355 Hyundai code diagnosed by a professional: Find a repair shop in your area

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 C1355 Hyundai Code

1. What are the common symptoms of OBDII code C1355 in a Hyundai related to the Pressure Sensor Electrical Circuit?

The common symptoms include issues with the vehicle's brake system, such as the ABS warning light coming on, poor brake performance, or unusual brake pedal behavior.

2. What are the possible causes of OBDII code C1355 in a Hyundai?

Possible causes of this code include a faulty pressure sensor, damaged wiring or connectors in the electrical circuit, or issues with the ABS control module.

3. How can I diagnose the Pressure Sensor Electrical Circuit issue causing OBDII code C1355 in my Hyundai?

Diagnosing this issue typically involves inspecting the pressure sensor, checking the wiring and connectors for any damage, and using a diagnostic scanner to gather data from the ABS system.

4. Can I still drive my Hyundai with OBDII code C1355 present?

It is not recommended to drive your Hyundai with this code present, as it may affect the vehicle's brake system performance and safety. It is best to have the issue diagnosed and repaired promptly.

5. Is it possible to reset OBDII code C1355 in a Hyundai without fixing the underlying issue?

While you can clear the code using an OBDII scanner, it will likely reappear until the underlying issue with the Pressure Sensor Electrical Circuit is addressed.

6. How much does it typically cost to repair OBDII code C1355 in a Hyundai?

The cost of repairing this code can vary depending on the exact cause of the issue. It is recommended to consult with a professional mechanic for an accurate estimate.

7. Are there any DIY repair tips for addressing OBDII code C1355 in a Hyundai?

DIY repair for this code may involve checking and cleaning the wiring and connectors, as well as inspecting the pressure sensor for any visible damage. However, complex repairs may require professional assistance.

8. Will OBDII code C1355 in a Hyundai cause the vehicle to fail an emissions test?

This code is related to the brake system and may not directly affect emissions. However, it is still important to address the issue to ensure the overall safety and performance of the vehicle.

9. How urgent is it to repair OBDII code C1355 in a Hyundai?

It is recommended to address this code promptly to prevent any potential safety hazards related to brake system malfunctions. Ignoring the issue may lead to further damage and compromise the vehicle's safety.

10. Can a Hyundai dealership service department help with diagnosing and repairing OBDII code C1355?

Yes, Hyundai dealerships have trained technicians and specialized equipment to diagnose and repair OBDII codes like C1355 related to the Pressure Sensor Electrical Circuit. It is advisable to seek professional assistance for accurate diagnosis and repair.

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