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Home >> Ford >> 2014 >> Fiesta S, 4D Hatchback, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Charging System - General Information) >> Description And Operation >> Charging System - 1.0L EcoBoost (90kW 120PS) 1.6L EcoBoost (132kW 180PS) - Sigma - System Operation and Component Description >> Engine Running Load Shed
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Engine Running Load Shed

WARNING: This page is about a different car, the 2015 Ford Fiesta. However, it is still accessible from the selected car via links, so may be relevant.

When the BCM and/or PCM voltage is low, with the engine running, the BCM sends a message to either minimize or shut down the climate controlled seats, rear defrost, heated mirrors and climate control blower motor to improve system voltage. Under this condition, the FCDIM (without touchscreen controls) or FDIM (with touchscreen controls) displays LOW BATTERY FEATURES TEMPORARILY TURNED OFF to notify the driver that battery protection actions are active during a Load Shed 2 continuous event.

There are 3 states of engine running load shed: 

Load Shed State Entry Conditions Impact to Features Clear Conditions
Load shed 1 Alternator at full load and battery discharging while driving. System voltage less than 11.5 volts Incrementally reduce loads. If equipped: Climate controlled seats, Heated Mirrors and Heated Backglass are turned Off System operating at normal power level.
Load shed 2 transient EPAS indicating reduced voltage and increased current. System voltage less than 11 volts Turn Off Loads without customer indication. If equipped, Climate controlled seats, Heated Mirrors and Heated Backglass System operating at normal power level.
Load shed 2 continuous Load Shed 2 Transient condition in excess of 20 seconds In addition to Load Shed 2 Transient turn off Climate Control Blower (reduced speed less FMVSS required operation). During Load Shed 2 Continuous feature on indication will turn off for Heated Steering Wheel, Climate Controlled Seats, Heated Mirrors and Heated Backglass. System operating at normal power level.
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