Ford Fiesta: Battery, Mounting and Cables / Battery. Diagnosis and Testing

Ford Fiesta 2014 - 2019 Service Manual / Battery and Charging System / Battery, Mounting and Cables / Battery. Diagnosis and Testing

General Equipment

Diagnostic Battery Charger

Battery Condition Test

Battery condition is determined by measuring battery terminal voltage after a specific discharge current is applied for a specified time period.

Visual Inspection and Diagnostic Pre-checks

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).

Inspect wiring, terminals and connectors.
Inspect the battery.
Inspect battery mounting.
Inspect high current BJB connections.

Use Ford approved battery test equipment.
- Midtronics MDX-650 or P-300/P-600/490/1050
- Midtronics GRX-3590 or 3000

PINPOINT TEST A: BATTERY CONDITION TEST

A1 TEST THE BATTERY CONDITION

NOTE: A red test-eye indicates the battery is discharged, not necessarily damaged.

NOTE: Failure to fully charge the battery before retesting may cause false readings.

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).

Battery and Cables - System Operation and Component Description. Description and Operation

System Operation Battery and Cables The battery is a 12V DC source connected in a negative ground system and is a voltage stabilizer for the 12V electrical system...

Battery Disconnect and Connect. General Procedures

Disconnect WARNING: Before beginning any service procedure in this section, refer to Safety Warnings in section 100-00 General Information...

Other information:

Ford Fiesta 2014 - 2019 Service Manual: Clockspring Adjustment. General Procedures

WARNING: If the clockspring is not correctly centralized, it may fail prematurely. If in doubt, repeat the centralizing procedure. Failure to follow these instructions may increase the risk of serious personal injury or death in a crash...

Ford Fiesta 2014 - 2019 Service Manual: Wheel Bearing and Wheel Hub. Removal and Installation

Removal NOTICE: Suspension fasteners are critical parts that affect performance of vital components and systems. Failure of these fasteners may result in major service expense. Use the same or equivalent parts if replacement is necessary...

Brake Drum. Removal and Installation

Removal

NOTE: Removal steps in this procedure may contain installation details.

WARNING: Before beginning any service procedure in this manual, refer to health and safety warnings in section 100-00 General Information. Failure to follow this instruction may result in serious personal injury.

Refer to: Health and Safety Precautions (100-00 General Information, Description and Operation).
Remove the wheel and tire.
Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).