OBD Guide

P0B8C

Hybrid/EV Battery Voltage Sense Q Circuit Range/Performance

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Hybrid system power reduction
  • Check Engine Light Illuminated
  • Limitation of operation in electric mode
  • Error message on display
  • Reduced performance of the hybrid system

Causes

  • Battery voltage sensor fault
  • Damage to control circuit wiring harness
  • Poor contact in connectors
  • Problems with the battery management module
  • Corrosion of contacts in the circuit

How to Fix

  1. Check the integrity of the control circuit wiring harness
  2. Check connections and contacts of voltage sensors
  3. Test battery voltage sensors
  4. Check the operation of the battery management module
  5. Replace faulty circuit components

Related codes

Error P0B8C by Vehicle Brand