OBD Guide

P0E9D

DC/DC Converter Current Sensor B Circuit Low

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

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Problems charging a 12-volt battery
  • Engine power limitation
  • Possible malfunctions in the electronic systems of the car

Causes

  • Faulty current sensor B DC/DC converter
  • Open or short circuit in the sensor circuit
  • Poor contact in sensor connectors
  • DC/DC converter malfunction
  • Problems with the control unit

How to Fix

  1. Check continuity of current sensor B circuit
  2. Inspect the sensor connectors for corrosion or damage.
  3. Check the functionality of current sensor B
  4. Test the DC/DC converter
  5. If necessary, replace faulty components

Related codes

Error P0E9D by Vehicle Brand