OBD Guide

P0BC8

Hybrid/EV Battery Pack Cooling Fan 1 Sense Range/Performance

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Check Engine Light Illuminated
  • Hybrid system power reduction
  • Noise or lack of operation of the battery cooling fan
  • Error message on display
  • Battery compartment overheating

Causes

  • Battery cooling fan malfunction
  • Open or short circuit in control circuit
  • Relay or fuse problems
  • Malfunction of the hybrid system control unit
  • Wiring harness damage

How to Fix

  1. Check fuses and fan relays
  2. Diagnose the control circuit for opens and short circuits
  3. Check the operation of the fan
  4. Scan the control unit for additional errors
  5. If necessary, replace the fan or wiring harness

Related codes

Error P0BC8 by Vehicle Brand