OBD Guide

P3054

DC/DC Converter Actuator Voltage Sensor Circuit 2 High Voltage

P3054 is an OBD-II diagnostic trouble code meaning: DC/DC Converter Actuator Voltage Sensor Circuit 2 High Voltage. Common causes: malfunction of voltage sensor circuit 2 dc/dc converter, damaged wiring harness or poor connections. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Problems charging a 12-volt battery
  • Engine power limitation
  • Incorrect operation of the vehicle's electronic systems

Causes

  • Malfunction of voltage sensor circuit 2 DC/DC converter
  • Damaged wiring harness or poor connections
  • Malfunction of the DC/DC converter itself
  • Problems with the converter control unit
  • Short circuit in the electrical system

How to Fix

  1. Check the integrity of the wiring harness and contacts
  2. Test Circuit 2 Voltage Sensor
  3. Check the functionality of the DC/DC converter
  4. Scan the control unit for additional errors
  5. If necessary, replace faulty components

Related codes

FAQ

What does the P3054 code mean?

P3054 is an OBD-II diagnostic trouble code that indicates: DC/DC Converter Actuator Voltage Sensor Circuit 2 High Voltage

What causes a P3054 error code?

The most common causes of P3054 include: Malfunction of voltage sensor circuit 2 DC/DC converter; Damaged wiring harness or poor connections; Malfunction of the DC/DC converter itself; Problems with the converter control unit.

How do I fix a P3054 diagnostic trouble code?

To fix P3054: Check the integrity of the wiring harness and contacts. Test Circuit 2 Voltage Sensor. Check the functionality of the DC/DC converter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3054?

Limited driving only, diagnose soon

How much does it cost to fix P3054?

The estimated repair cost for P3054 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat