OBD Guide

P1FC6

Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit

P1FC6 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit. Common causes: battery management module malfunction, open or short circuit in control circuit. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$167–556 (est.)

Symptoms

  • The Check Engine or Hybrid light comes on
  • Reduced performance of the hybrid system
  • The vehicle goes into emergency mode
  • Reducing electric range
  • Problems with charging a high-voltage battery

Causes

  • Battery management module malfunction
  • Open or short circuit in control circuit
  • Problems with module power or grounding
  • Damage to wiring or connectors
  • Corrosion of contacts in the control circuit

How to Fix

  1. Check the integrity of wiring and connectors
  2. Check power supply and grounding of the module
  3. Scan for additional trouble codes
  4. Check Battery Management Module
  5. Repair only from an authorized dealer

Related codes

FAQ

What does the P1FC6 code mean?

P1FC6 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 8 5 V Reference Circuit

What causes a P1FC6 error code?

The most common causes of P1FC6 include: Battery management module malfunction; Open or short circuit in control circuit; Problems with module power or grounding; Damage to wiring or connectors.

How do I fix a P1FC6 diagnostic trouble code?

To fix P1FC6: Check the integrity of wiring and connectors. Check power supply and grounding of the module. Scan for additional trouble codes. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FC6?

Do not drive — repair immediately

How much does it cost to fix P1FC6?

The estimated repair cost for P1FC6 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat