OBD Guide

C1775

DC-DC Converter Failure

C1775 is an OBD-II diagnostic trouble code meaning: DC-DC Converter Failure. Common causes: dc-dc converter malfunction, wiring harness problems. Estimated repair cost: $167–333.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–333 (est.)

Symptoms

  • Unstable operation of electronic systems
  • Battery charging problems
  • Warning messages on the dashboard

Causes

  • DC-DC converter malfunction
  • Wiring Harness Problems
  • Short circuit in the circuit
  • Control unit malfunction

How to Fix

  1. Check the condition of the DC-DC converter
  2. Check wiring harness for damage
  3. Check the voltage at the output of the converter
  4. Replace the DC-DC converter if necessary

Related codes

FAQ

What does the C1775 code mean?

C1775 is an OBD-II diagnostic trouble code that indicates: DC-DC Converter Failure

What causes a C1775 error code?

The most common causes of C1775 include: DC-DC converter malfunction; Wiring Harness Problems; Short circuit in the circuit; Control unit malfunction.

How do I fix a C1775 diagnostic trouble code?

To fix C1775: Check the condition of the DC-DC converter. Check wiring harness for damage. Check the voltage at the output of the converter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1775?

Limited driving only, diagnose soon

How much does it cost to fix C1775?

The estimated repair cost for C1775 is $167–333. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat