OBD Guide

P0C05

Drive Motor A Phase U-V-W Circuit/Open

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Power Loss
  • Uneven engine operation
  • Check Engine light comes on
  • The engine may not start

Causes

  • Open circuit in phase motor
  • Damage to connectors or wiring
  • Inverter fault
  • Problems with the engine itself

How to Fix

  1. Check the continuity of the phase motor circuit
  2. Inspect connectors and wiring for damage
  3. Check the operation of the inverter
  4. Diagnose engine condition

Related codes

Error P0C05 by Vehicle Brand