OBD Guide

P1FC1

Hybrid/EV Battery Interface Control Module 9 Performance

P1FC1 is an OBD-II diagnostic trouble code meaning: Hybrid/EV Battery Interface Control Module 9 Performance. Common causes: battery management module malfunction, problems with module power or grounding. Estimated repair cost: $167–556.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Reduced vehicle power
  • Switching to emergency mode
  • Check Engine Light Illuminates
  • Reduced performance of the hybrid system
  • Problems with charging a high-voltage battery

Causes

  • Battery management module malfunction
  • Problems with module power or grounding
  • Wiring harness damage
  • Module software failures
  • Corrosion of contacts or connectors

How to Fix

  1. Check module connections and connectors
  2. Check the integrity of the wiring harness
  3. Check power supply and grounding of the module
  4. Perform module diagnostics using a scanner
  5. If necessary, replace the control module
  6. Repair only from an authorized dealer

Related codes

FAQ

What does the P1FC1 code mean?

P1FC1 is an OBD-II diagnostic trouble code that indicates: Hybrid/EV Battery Interface Control Module 9 Performance

What causes a P1FC1 error code?

The most common causes of P1FC1 include: Battery management module malfunction; Problems with module power or grounding; Wiring harness damage; Module software failures.

How do I fix a P1FC1 diagnostic trouble code?

To fix P1FC1: Check module connections and connectors. Check the integrity of the wiring harness. Check power supply and grounding of the module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1FC1?

Limited driving only, diagnose soon

How much does it cost to fix P1FC1?

The estimated repair cost for P1FC1 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat