OBD Guide

P0BCA

Hybrid/EV Battery Pack Cooling Fan 1 Sense Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced performance of the hybrid system
  • Noisy cooling fan
  • Reduced vehicle power
  • Error message on display

Causes

  • Open circuit in the fan sensor circuit
  • Short circuit in wiring
  • Fan speed sensor malfunction
  • Problems with the control unit
  • Contact corrosion

How to Fix

  1. Check the integrity of wiring and connectors
  2. Check the resistance of the fan speed sensor
  3. Check the voltage in the circuit
  4. Replace faulty sensor or wiring
  5. Reset the error code and check the system

Related codes

Error P0BCA by Vehicle Brand