P0D18

Symptoms

• Warning light on dashboard
• Problems with charging a high-voltage battery
• Reduced performance of the hybrid system
• The car may go into emergency mode
• Possible problems starting the engine

Causes

• High voltage relay malfunction
• Damage to the wiring in the interlock circuit
• Problems with the charging system control unit
• High voltage battery fault
• Short circuit in high voltage circuit

How to Fix

1. Check the condition of the high voltage relay
2. Inspect the wiring for damage
3. Check connections in the interlock circuit
4. Test the charging system control unit
5. Check the condition of the high-voltage battery
6. Repair only from an authorized dealer

Related codes

Error P0D18 by Vehicle Brand