OBD Guide

P0A75

Generator Phase W Current

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced hybrid system efficiency
  • Problems with charging a high-voltage battery
  • Deterioration of vehicle dynamics
  • Possible noise from the generator

Causes

  • Phase W generator fault
  • Generator circuit damage
  • Problems with connectors or wiring
  • Malfunction of the hybrid system control module
  • Short circuit or open circuit

How to Fix

  1. Check the condition of the generator and its components
  2. Diagnose the generator phase W circuit
  3. Check connectors and wiring harness for damage
  4. Test the hybrid system control module
  5. If necessary, replace the generator or repair the wiring

Related codes

Error P0A75 by Vehicle Brand