AutoCodes – Generic – C1775

C1775 Code - DC-DC Converter Failure

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the DC-DC Converter. Common causes include Faulty DC-DC Converter, DC-DC Converter harness is open or shorted, DC-DC Converter 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: C1775 indicates DC-DC Converter Failure.
Common causes: Common causes include Faulty DC-DC Converter, DC-DC Converter harness is open or shorted, DC-DC Converter 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 5,028

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 Nov 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1775 Description

The Anti-Lock Brake System (ABS) Module monitors the DC-DC Converter. The ABS Module sets the OBDII code when the DC-DC Converter is not to factory specifications.

OBDII Code C1775 - DC-DC Converter Failure - AutoCodes.com — C1775 Code - DC-DC Converter Failure

What does this mean?

What are the Possible Causes of the DTC C1775?

Faulty DC-DC Converter
DC-DC Converter harness is open or shorted
DC-DC Converter circuit poor electrical connection

How to Fix the DTC C1775?

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 C1775 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 C1775 code?

Need more information on how to fix the C1775 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1775 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 C1775 Code

1. What are common symptoms of OBDII code C1775 (DC-DC Converter Failure)?

- Common symptoms include the hybrid system warning light illuminating on the dashboard, loss of power, and potential issues with hybrid battery charging.

2. What can cause OBDII code C1775 (DC-DC Converter Failure) to trigger?

- The code may be triggered by issues with the DC-DC converter itself, such as internal component failure, overheating, or electrical malfunctions.

3. How serious is a DC-DC Converter Failure indicated by OBDII code C1775?

- A DC-DC Converter Failure can be a serious issue as it affects the charging system of the hybrid vehicle, potentially leading to further problems with the hybrid battery and overall vehicle performance.

4. Can I continue driving my vehicle with OBDII code C1775 (DC-DC Converter Failure)?

- It is not recommended to continue driving the vehicle with this code active, as it can lead to further damage to the hybrid system and potentially result in a breakdown.

5. What are some repair tips for addressing OBDII code C1775 (DC-DC Converter Failure)?

- Repair tips may include checking and replacing the DC-DC converter, inspecting the wiring and connections for any faults, and ensuring proper cooling and ventilation for the converter.

6. How can I diagnose OBDII code C1775 (DC-DC Converter Failure) in my hybrid vehicle?

- Diagnosis typically involves using a scan tool to retrieve the code, conducting a visual inspection of the DC-DC converter, and performing electrical tests to identify the root cause of the issue.

7. Are there any DIY fixes for OBDII code C1775 (DC-DC Converter Failure)?

- Due to the complexity of the hybrid system and the importance of the DC-DC converter, DIY fixes are not recommended. It is best to seek professional help for proper diagnosis and repair.

8. How much does it cost to repair OBDII code C1775 (DC-DC Converter Failure)?

- The cost of repair can vary depending on the extent of the issue, the model of the vehicle, and labor rates. It is advisable to get a diagnosis from a qualified technician for an accurate estimate.

9. Can a faulty DC-DC converter cause other OBDII codes to trigger?

- Yes, a faulty DC-DC converter can impact other components in the hybrid system, leading to the triggering of additional OBDII codes related to charging system malfunctions.

10. How can I prevent OBDII code C1775 (DC-DC Converter Failure) in the future?

- Regular maintenance, including checking the hybrid system components, keeping the cooling system in good condition, and addressing any warning lights promptly, can help prevent DC-DC Converter Failure.