OBD Guide

P0A45

Drive Motor B Position Sensor Circuit

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

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • Unstable operation of the electric motor
  • The car goes into emergency mode
  • Increased fuel consumption

Causes

  • Open or short circuit in the sensor circuit
  • Motor position sensor B fault
  • Poor contact in wiring connectors
  • Mechanical damage to the sensor
  • Malfunction of the hybrid system control module

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors and contacts for corrosion
  3. Check the resistance of the position sensor
  4. Replace the faulty sensor if necessary
  5. Test the operation of the hybrid system after repair

Related codes

Error P0A45 by Vehicle Brand