OBD Guide

P0E1E

Hybrid/EV Battery Pack Coolant Pump B Control Circuit Driver Current/Temperature Too High

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

Symptoms

  • Battery overheating
  • Hybrid system power reduction
  • Malfunction warning on the dashboard
  • Noisy cooling pump
  • Reduced cooling efficiency

Causes

  • Battery cooling pump malfunction
  • Damage to the pump wiring harness
  • Problems with the control unit
  • Short circuit in the circuit
  • Cooling system overload

How to Fix

  1. Check the operation of the cooling pump
  2. Inspect the wiring harness for damage
  3. Check fuses and relays
  4. Diagnose the control unit
  5. Replace the pump if necessary

Related codes

Error P0E1E by Vehicle Brand