OBD Guide
ENFRDEESPT

P305E

DC/DC Converter Crank Control Circuit Low Voltage

P305E is an OBD-II diagnostic trouble code meaning: DC/DC Converter Crank Control Circuit Low Voltage. Common causes: damage to the control circuit wiring harness, dc/dc converter malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Difficulty starting the engine
  • Flashing indicators on the dashboard
  • Reduced power of electrical systems
  • Check Engine Light Is On

Causes

  • Damage to the control circuit wiring harness
  • DC/DC converter malfunction
  • Problems with the control module
  • Corrosion of contacts or connectors
  • Circuit Grounding Problems

How to Fix

  1. Check the integrity of the control circuit wiring harness
  2. Check connections and contacts for corrosion
  3. Check the voltage on the DC/DC converter
  4. Test the control module
  5. Replace DC/DC converter if necessary

Related codes

P305FP3060

FAQ

What does the P305E code mean?

P305E is an OBD-II diagnostic trouble code that indicates: DC/DC Converter Crank Control Circuit Low Voltage

What causes a P305E error code?

The most common causes of P305E include: Damage to the control circuit wiring harness; DC/DC converter malfunction; Problems with the control module; Corrosion of contacts or connectors.

How do I fix a P305E diagnostic trouble code?

To fix P305E: Check the integrity of the control circuit wiring harness. Check connections and contacts for corrosion. Check the voltage on the DC/DC converter. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P305E?

Limited driving only, diagnose soon

How much does it cost to fix P305E?

The estimated repair cost for P305E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat