Ford Fusion: Battery, Mounting and Cables / Battery. Diagnosis and Testing
General Equipment
Diagnostic Battery Charger |
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Use Ford approved battery test equipment.
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Midtronics MDX-650 or P-300/P-600/490/1050
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Midtronics GRX-3590 or 3000
Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

PINPOINT TEST A : BATTERY CONDITION TEST
Normal Operation and Fault Conditions
Battery condition is determined by measuring battery
terminal voltage after a specific discharge current is applied for a
specified time period.
Possible Sources
- Battery
- Wiring, terminals or connectors
Visual Inspection and Pre-checks
- Inspect wiring, terminals and connectors.
- Inspect the battery.
- Inspect battery mounting
- Inspect high current BJB connections.
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A1 TEST THE BATTERY CONDITION |
NOTE:
Failure to fully charge the battery before retesting may cause false readings.
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Using the Diagnostic Battery Charger and the battery
cables removed from the battery, verify the battery condition.
Is the battery OK?
Yes |
RETURN the battery to service.
|
No |
If the analyzer reads REPLACE BATTERY or REPLACE-BAD CELL, INSTALL a new battery. REFER to: Battery (414-01 Battery, Mounting and Cables, Removal and Installation).
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System Operation
The battery is a 12V DC source connected in a negative ground system and is a voltage stabilizer for the 12V electrical system.
Component Description
Battery
Vehicles are equipped with a 12-volt, maintenance-free battery...
Charging
WARNING:
Before beginning any service procedure in this section,
refer to Safety Warnings in section 100-00 General Information. Failure
to follow this instruction may result in serious personal injury...
Other information:
Use oil and fluid that meets the defined
specification and viscosity grade.
If you do not use oil and fluid that meets
the defined specification and viscosity
grade, it could result in:
Component damage that your vehicle
warranty does not cover...
Removal
NOTE:
Removal steps in this procedure may include installation details.
WARNING:
Before beginning any service procedure in this
section, REFER to Safety Warnings in section 100-00 General Information.
Failure to follow this instruction may result in serious personal
injury...