System Operation
Battery and Cables
The battery and cable system consists of the following components:
Vehicles are equipped with a 12-volt, maintenance-free battery. The battery is a 12-volt DC source connected in a negative ground system and is a voltage stabilizer for the 12-volt electrical system.
A battery monitoring sensor is attached to the negative side of the battery cable,
Refer
to: Charging System - 3.5L EcoBoost (272kW/370PS) - System Operation
and Component Description (414-00 Charging System - General Information,
Description and Operation).
Ford Motor Company strongly recommends that all faulty lead-acid batteries be returned to an authorized recycling facility for disposal.
This document provides critical diagnostic knowledge required for successful repair outcomes. It identifies technical competencies expected by users of this manual.
Ford Diagnostic Assumptions
Ford diagnostics assume the vehicle concern described by the test title is currently present. Exceptions to this rule are noted in each test. Do not replace modules or other components as directed by a diagnostic if the concern is not present at the time of testing.