P305D
DC/DC Converter Crank Control Circuit High Voltage
P305D is an OBD-II diagnostic trouble code meaning: DC/DC Converter Crank Control Circuit High Voltage. Common causes: dc/dc converter malfunction, problems with wiring or contacts in the control circuit. Estimated repair cost: $56–278.
Symptoms
- Difficulty starting the engine
- Warning messages on the dashboard
- Reduced performance of the hybrid system
- Disconnection or unstable operation of auxiliary systems
- Increased engine starting time
Causes
- DC/DC converter malfunction
- Problems with wiring or contacts in the control circuit
- Malfunctions in the energy control unit
- Short circuit in high voltage circuit
- Damaged or corroded connectors
How to Fix
- Check the condition of the wiring and connectors in the control circuit
- Test the DC/DC converter for faults
- Check the functionality of the energy control unit
- Measure the actual voltage in the control circuit
- Replace faulty components if necessary
Related codes
FAQ
What does the P305D code mean?
P305D is an OBD-II diagnostic trouble code that indicates: DC/DC Converter Crank Control Circuit High Voltage
What causes a P305D error code?
The most common causes of P305D include: DC/DC converter malfunction; Problems with wiring or contacts in the control circuit; Malfunctions in the energy control unit; Short circuit in high voltage circuit.
How do I fix a P305D diagnostic trouble code?
To fix P305D: Check the condition of the wiring and connectors in the control circuit. Test the DC/DC converter for faults. Check the functionality of the energy control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P305D?
Do not drive — repair immediately
How much does it cost to fix P305D?
The estimated repair cost for P305D is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat