OBD Guide

P0BD3

Drive Motor Inverter Temperature Sensor C Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$50–133 (est.)

Symptoms

  • Check Engine light comes on
  • Hybrid system power reduction
  • Deterioration in acceleration dynamics
  • Possible problems with regenerative braking
  • Incorrect temperature readings in diagnostic software

Causes

  • Inverter temperature sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor circuit connectors
  • Wiring harness damage
  • Hybrid ECU malfunction

How to Fix

  1. Conduct a visual inspection of the sensor circuit and connectors
  2. Check the resistance of the temperature sensor
  3. Measure the voltage and resistance in the sensor circuit
  4. Check for ECU firmware updates
  5. Replace the temperature sensor or repair the circuit if necessary

Related codes

Error P0BD3 by Vehicle Brand