Ford Fiesta (2011 year). Manual — part 31

4. Connect one lead of an ohmmeter to terminal

3 of the relay. Connect second lead to terminal
5 of the relay. Observe the resistance.

5. Momentarily tap the unconnected end of the

second jumper wire to the battery power. An
audible click should be heard and the resistance
on the ohmmeter should drop to zero.

6. If the relay does not click and the resistance

does not drop to zero, INSTALL a new relay.

Heated Rear Window Grid Wire Test

1. Using a bright lamp inside the vehicle, visually

inspect the wire grid from the outside. A broken
grid conductor will appear as a brown spot.

2. Start the engine and set the heated rear window

switch to ON, the indicator light should
illuminate.

3. Work inside the vehicle with a 12 volt DC

voltmeter. Contact the broad red-brown strips
on the rear window, positive lead to the battery
side and the negative lead to ground side. The
meter reading should be 10-12 volts. A lower
voltage reading indicates a loose heated rear
window ground wire connection at the heated
rear window ground wire screws.

4. Contact a ground point with the negative lead

of the meter. The voltage reading should not
change.

5. With the negative lead of the meter grounded,

touch each grid line of the heated rear window
at its midpoint with the positive meter lead. A
reading of approximately six volts indicates that
the line is good. A reading of zero volts indicates
that the line is broken between the midpoint and
the B+ side of the grid line. A reading of 12 volts
indicates that the circuit is broken between the
midpoint of the grid line and ground.

6. Install a new heated rear window using the

procedures as described under the general
procedures if necessary.

G1055889en

501-11-

6

Glass, Frames and Mechanisms

501-11-

6

DIAGNOSIS AND TESTING

201

Glass, Frames and Mechanisms — Vehicles With: Double Locking

schematic and connector information.

General Equipment

The Ford diagnostic equipment

Inspection and Verification

1. Verify the customer concern.

2. Visually inspect for obvious signs of mechanical

or electrical damage.

Visual Inspection Chart

Electrical

Mechanical

• Fuse(s)

• Electrical

connector(s)

• Switch(es)

• Window regulator

motor

• Circuit(s)

• Door window seal

• Door window frame

3. If an obvious cause for an observed or reported

concern is found, correct the cause (if possible)
before proceeding to the next step.

4. If the cause is not visually evident, verify the

symptom and refer to the diagnostic tab within

Component Tests

Liftgate Window Glass Heated Grid Wire
Test

1. Using a bright lamp inside the vehicle, visually

inspect the liftgate window glass heated grid
wire from the outside of the vehicle. A broken
liftgate window glass heated grid wire will
appear as a brown spot at the break point.

2. Run the engine at idle.

3. Set the heated liftgate window glass control

switch and the headlamp switch to ON. The
heated liftgate window glass control switch
should be illuminated.

4. Working inside the vehicle with a multimeter,

contact the multimeter positive lead to the
liftgate window glass heated grid supply side
and contact the multimeter negative lead to the
liftgate window glass heated grid ground side.

A multimeter voltage reading of between 10-13
volts is expected. A lower voltage reading
indicates a loose liftgate window glass heated
grid ground wire connection at the liftgate
window glass heated grid ground screw.

5. With the negative lead of the multimeter

grounded, touch each liftgate window glass
heated grid wire at its midpoint with the positive
lead. The multimeter should show a voltage
reading of approximately six volts indicating that
the liftgate window glass heated grid wire is OK.
A multimeter voltage reading of zero volts
indicates that the liftgate window glass heated
grid wire is broken between the midpoint and
the battery side of the liftgate window glass
heated grid wire. A multimeter voltage reading
of 12 volts indicates that the liftgate window
glass heated grid wire is broken between the
midpoint of the liftgate window glass heated grid
wire and ground.

6. INSTALL a new liftgate window glass (as

required).

REFER to: Liftgate Window Glass

(501-11

Glass, Frames and Mechanisms, Removal
and Installation).

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Glass, Frames and Mechanisms

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7

DIAGNOSIS AND TESTING

Refer to Wiring Diagrams

Section 501-11, for

the

Ford diagnostic equipment.

201

Front Door Window Glass

General Equipment

Flat-bladed screwdriver

Removal

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

Trim and Ornamentation, Removal and
Installation).

2.

E106266

3-door

3.

E106771

x3

4.

E106772

5. General Equipment: Flat-bladed screwdriver

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Glass, Frames and Mechanisms

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8

REMOVAL AND INSTALLATION

1.

Refer to: Front Door Trim Panel

(501-05 Interior

201

E106770

1

1

2

x2

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Glass, Frames and Mechanisms

501-11-

9

REMOVAL AND INSTALLATION

201