P2C96 — Hybrid/EV Battery Disable Circuit/Open

P2C96: Hybrid/EV Battery Disable Circuit/Open — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Hybrid/EV Battery Disable Circuit/Open. Basic catalogue definition; diagnostic details have not yet been reviewed.

Affected system: Powertrain

Symptoms

  • Warning light may illuminate
  • Related system function may be impaired
  • Vehicle-specific symptoms vary

Possible causes

  • Low or unstable supply voltage, fuse or relay fault, poor ground, or wiring damage
  • Related wiring, connector, power or ground fault
  • Vehicle-specific mechanical or control issue

What to check

  • Record stored and pending codes and freeze-frame data
  • Measure battery and charging voltage under load and compare with scan data; test the named circuit, fuse, relay, grounds and connectors.
  • Confirm measured values against the vehicle service information
  • Retest under the conditions that set the code
  • Measure battery and charging voltage under load and compare with scan data; test the named circuit, fuse, relay, grounds and connectors.
  • Repair the verified cause and confirm the code does not return

Also written as: P2C96-00, P2C9600 (some scan tools add the fault-type byte, e.g. -00).