OBD Guide

P0D63

Hybrid/EV Battery Pack Cooling Fan 2 Sense Circuit Intermittent/Erratic

Severity
🔴 High
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Check Engine light comes on
  • Reduced performance of the hybrid system
  • Noisy or irregular fan operation
  • Possible error message on the dashboard
  • Reduced vehicle power in hot weather

Causes

  • Damaged wiring or poor contact in the fan circuit
  • Malfunction of the second battery cooling fan
  • Problems with the relay or circuit fuse
  • Corrosion of contacts or connectors
  • Error in the hybrid system control module

How to Fix

  1. Check the integrity of the wiring and contacts in the fan circuit
  2. Test the operation of the second battery cooling fan
  3. Check the condition of the relays and fuses
  4. Clean contacts from corrosion if necessary
  5. Read and analyze additional error codes

Related codes

Error P0D63 by Vehicle Brand