OBD Guide

P0E1F

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

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

Symptoms

  • Hybrid system power reduction
  • Overheat warning on dashboard
  • Noisy cooling pump
  • Reduced performance of the hybrid system
  • Activation of emergency operation

Causes

  • Battery cooling pump malfunction
  • Problems with the pump wiring harness
  • Control circuit driver malfunction
  • Short circuit in the pump circuit
  • Problems with the hybrid system control unit

How to Fix

  1. Check the operation of the cooling pump
  2. Inspect the wiring harness and pump connectors
  3. Check pump circuit resistance
  4. Diagnose the hybrid system control unit
  5. Replace the cooling pump if necessary

Related codes

Error P0E1F by Vehicle Brand