AutoFixDB - Free OBD-II diagnostic trouble code lookup. Find causes, symptoms, diagnostic steps and repair solutions.

Overview

DTC B00FA diagnostic trouble code indicates a Battery Energy Control Module (BECM) fault, commonly seen in Ford/Lincoln hybrid and PHEV vehicles due to battery management or module issues

Common Symptoms

Battery warning light
Reduced performance or loss of electric drive mode
Check engine light or hybrid system fault
Vehicle enters reduced power mode or displays 'Stop Safely Now'

Most Common Causes

High voltage battery degradation or voltage irregularities medium

Issues with high-voltage battery pack can trigger BECM faults

Corroded or poor electrical connections to BECM medium

Battery terminals/cables corrosion can disrupt module communication

BECM software glitches medium

Outdated or corrupted BECM software may falsely trigger fault

Damaged BECM due to overvoltage/current flow high

Documented recall issues with Ford Fusion Energi where BECM damage occurred

Diagnostic Steps

Connect professional-level diagnostic scanner and retrieve freeze frame data and DTC list

Expected: Code B00FA alongside any related high-voltage battery codes

Interpretation: Confirms BECM fault and checks for concurrent battery system issues
Visually inspect battery pack high-voltage and 12V connections for corrosion or damage

Expected: No corrosion or loose connections

Interpretation: Poor connections can mimic module faults
Check high-voltage battery health with battery diagnostic tools

Expected: Battery cell voltages within manufacturer specifications

Interpretation: Degraded cells can lead to false BECM errors
Verify and update BECM software and related module firmware using dealer-level tools

Expected: Latest available calibration applied

Interpretation: Software issues may be resolved with update; persistent fault suggests hardware

Repair Solutions

Clean or repair corroded connections easy

Estimated Cost: $50 - $200

Correcting poor connections may resolve the issue without module replacement

Update BECM and related module software medium

Estimated Cost: $100 - $300

Dealer-level software update often recommended as first step

Replace high-voltage battery pack if degraded hard

Estimated Cost: $2000 - $6000

Expensive repair typically seen in hybrid/PHEV models

Replace BECM module hard

Estimated Cost: $500 - $1500

Module replacement if diagnostics confirm BECM hardware failure

Common Misdiagnoses

Avoid these common diagnostic mistakes:

Erroneous interpretation as general battery drained or 12V battery fault

Frequently Asked Questions

Technical definition of B00FA OBD-II Code

Technically, the B00FA code represents Battery Energy Control Module (BECM) Fault. It usually points to a fault within the Sensors.

Can B00FA cause engine damage?

The B00FA code is considered medium severity. May cause reduced electrical system performance, hybrid system fallback, loss of EV mode or reduced power mode in hybrid vehicles

How do I know if I have code B00FA?

You may experience the following: Battery warning light, Reduced performance or loss of electric drive mode, Check engine light or hybrid system fault.

Why is my car throwing a B00FA code?

This code is frequently triggered by: High voltage battery degradation or voltage irregularities, Corroded or poor electrical connections to BECM, BECM software glitches.

Estimated repair costs for different causes of B00FA

Expect to pay around $200 if the issue is a Clean or repair corroded connections, but up to $6000 if the Replace high-voltage battery pack if degraded needs replacement.

What cars are affected by the B00FA code?

The B00FA code is a generic powertrain code, meaning it applies to almost all makes and models, such as Honda, Toyota, VW, Ford, and Chevy.

B00FA: Battery Energy Control Module (BECM) Fault