OBD Codes List

Diagnostic reference · P2D39

P2D39

Forced Hybrid/EV Battery Disconnect

System
Powertrain control (P code)
Lamp
Check Engine Light
Category
Powertrain - Hybrid Propulsion

What it means

P2D39 means Forced Hybrid/EV Battery Disconnect.

Check these first

  • A high voltage interlock loop that opened
  • A service disconnect plug that is not seated
  • A failed battery pack contactor
  • A crash signal that forced the disconnect
  • A damaged high voltage cable

What to do next

  1. Check the service disconnect plug is fully seated
  2. Inspect the high voltage interlock loop
  3. Scan for crash and interlock codes
  4. Test the battery pack contactors
  5. Repair the open high voltage circuit
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.