OBD Guide

P0AF2

Drive Motor Inverter Temperature Sensor B Circuit

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced motor power
  • Limitation of hybrid system operation
  • Inverter overheating
  • Inability to switch to electric mode

Causes

  • Inverter B temperature sensor fault
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Inverter module failure

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check sensor connections and connectors
  3. Test sensor resistance
  4. Replace faulty temperature sensor
  5. Check and, if necessary, replace the inverter module

Related codes

Error P0AF2 by Vehicle Brand