OBD Guide

P0E43

Hybrid/EV Powertrain Control Module B

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

Symptoms

  • Check Engine light comes on
  • Reduced vehicle power
  • Increased fuel consumption
  • Unstable operation of the hybrid system
  • The car goes into emergency mode

Causes

  • Malfunction of the hybrid control module
  • Module power problems
  • Wiring harness damage
  • Problems with data exchange via CAN bus
  • Module software error

How to Fix

  1. Check fault codes in other modules
  2. Check power supply and grounding of the module
  3. Inspect the wiring harness for damage
  4. Check CAN bus connections
  5. Update or reflash module software
  6. Replacing the control module if necessary

Related codes

Error P0E43 by Vehicle Brand