P0B65

Symptoms

• The Check Engine Light or Hybrid System Warning comes on
• Reduced performance of the hybrid system
• The car goes into emergency mode
• Unusual battery level readings
• Charging problems (for plug-in hybrids/electric vehicles)

Causes

• Open or short circuit in the voltage sensor circuit
• Battery voltage sensor fault
• Poor connection or corrosion in sensor circuit connectors
• Problems with high voltage battery
• Malfunction of the hybrid control module (HCU)

How to Fix

1. Check the continuity of the voltage sensor circuit
2. Check connections and connectors for corrosion or damage
3. Check the functionality of the voltage sensor
4. Check the condition of the high-voltage battery
5. If necessary, replace faulty components

Related codes

Error P0B65 by Vehicle Brand