Page 1
Factory Workshop Manual
Ford
Expedition 4wd
V8-4.6L SOHC VIN W (1999)
Anonymous
1st January 2018
Make
Model
Engine and year
This manual was submitted by
Date
Page 2
Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0500-P05ZZ > P0500 - P0504,
( P0501 P0502 P0503 0500 0501 0502 0503 0504 ) > System Information > System Diagnosis > P0500 ( P 0500 )
Page 3
P0500 - P0504: Testing and Inspection P0500 ( P 0500 )
For diagnosis of P0500 refer to the system experiencing the problem.
Computers and Control Systems or Transmission Control System
Refer to pinpoint test DP1. See: Powertrain Management/Computers and Control Systems/Testing
and Inspection/Pinpoint Tests/DP - Vehicle Speed/Transfer Case Speed Sensors
For complete Engine Control diagnostic information, See: Powertrain Management/Computers and
Control Systems/Testing and Inspection
Transfer Case
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0500-P05ZZ > P0500 - P0504,
( P0501 P0502 P0503 0500 0501 0502 0503 0504 ) > System Information > System Diagnosis > P0500 ( P 0500 ) > Page 9
Page 5
4 Of 5
For complete Transfer Case diagnostic information, See: Transmission and Drivetrain/Transfer
Case/Testing and Inspection
Windshield Wiper
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0500-P05ZZ > P0500 - P0504,
( P0501 P0502 P0503 0500 0501 0502 0503 0504 ) > System Information > System Diagnosis > P0500 ( P 0500 ) > Page
10
Page 7
Part 4 Of 5
For complete Windshield Wiper diagnostic information, See: Wiper and Washer Systems/Testing
and Inspection
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724,
( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 )
Page 9
P0720 - P0724: Testing and Inspection P0720 ( P 0720 )
Manual Transmission (M.T.)
For diagnosis of P0720 refer to chart
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724,
( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 ) > Page
16
Page 11
For complete Engine Control diagnostic information, See: Powertrain Management/Computers and
Control Systems/Testing and Inspection
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Automatic Transmission (A.T.)
For diagnosis of P0720 refer to chart
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724,
( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 ) > Page
17
5 Of 7
Page 14
For complete Transmission Control diagnostic information, See: Powertrain
Management/Transmission Control Systems/Testing and Inspection
For complete Engine Control diagnostic information, See: Powertrain Management/Computers and
Control Systems/Testing and Inspection
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724,
( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 ) > Page
18
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P0720 - P0724: Testing and Inspection P0721 ( P 0721 )
Page 17
Manual Transmission (M.T.)
For diagnosis of P0721 refer to chart
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724,
( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 ) > Page
19
Page 19
For complete Engine Control diagnostic information, See: Powertrain Management/Computers and
Control Systems/Testing and Inspection
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Automatic Transmission (A.T.)
For diagnosis of P0721 refer to chart
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P0700-P07ZZ > P0720 - P0724,
( P0721 P0722 P0723 0720 0721 0722 0723 0724 ) > System Information > System Diagnosis > P0720 ( P 0720 ) > Page
20
7 Of 7
Page 22
For complete Transmission Control diagnostic information, See: Powertrain
Management/Transmission Control Systems/Testing and Inspection
For complete Engine Control diagnostic information, See: Powertrain Management/Computers and
Control Systems/Testing and Inspection
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1830 - P1834,
( P1831 P1832 P1833 1830 1831 1832 1833 1834 ) > System Information > System Diagnosis > P1834
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P1830 - P1834: Testing and Inspection P1834
P1834 is an information code (there is no testing for this code).
Code Description: Transmission Transfer Case Differential Lock-Up Solenoid Short Circuit to
Battery.
Refer to wiring diagrams to diagnose this circuit, See: Transmission and Drivetrain/Transfer
Case/Diagrams
For complete Transfer Case diagnostic information, See: Transmission and Drivetrain/Transfer
Case/Testing and Inspection
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory
Delay Module > Accessory Delay Relay > Component Information > Locations
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Accessory Delay Relay: Locations
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory
Delay Module > Accessory Delay Relay > Component Information > Locations > Page 32
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory
Delay Module > Accessory Delay Relay > Component Information > Locations > Page 33
Page 30
Accessory Delay Relay: Testing and Inspection
Component Testing Procedure
Terminals
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Accessory
Delay Module > Accessory Delay Relay > Component Information > Locations > Page 34
Schematic
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Locations
Page 33
Alarm Module: Locations
Body Views
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Locations > Page 38
The Remote Anti-Theft Personality Module is located behind left side of instrument panel.
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Diagrams > Anti-Theft Transceiver Module
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Diagrams > Anti-Theft Transceiver Module > Page 41
Page 37
Alarm Module: Diagrams Remote Anti-Theft Personality Module
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Diagrams > Page 42
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Alarm Module: Service and Repair
REMOVAL
1. Disconnect the battery ground cable.
CAUTION: Electronic modules are sensitive to electrical charges. If exposed to these charges,
damage may result.
2. Remove the ignition switch lock cylinder.
1 Insert the ignition key into the ignition switch lock cylinder and turn to the RUN position.
2 Insert a punch in the access hole of the steering column and press the release tab while pushing
out the ignition switch lock cylinder.
3. Unscrew and remove the tilt wheel handle and shank. 4. Remove the instrument panel steering
column cover.
5. Remove the upper and lower steering column shrouds.
1 Remove the screws.
2 Remove the lower steering column shroud.
3 Remove the upper steering column shroud.
NOTE: The steering wheel has been removed for clarity.
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm
Module, (Vehicle Antitheft) > Component Information > Diagrams > Page 43
6. Remove the anti-theft transceiver module.
1 Remove the screw from the bottom of the transceiver module.
2 Disconnect the electrical connector and remove the module.
NOTE: Only apply pressure or leverage below the key cylinder lower rib.
INSTALLATION
1. To install, reverse the removal procedure.
NOTE: When the battery is disconnected and reconnected, some abnormal drive symptoms may
occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10
mi) or more to relearn the strategy.
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Multifunction Electronic Control Module <--> [General Module] > Component Information > Locations
Page 42
Multifunction Electronic Control Module: Locations
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Multifunction Electronic Control Module <--> [General Module] > Component Information > Locations > Page 47
Page 44
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Diagram Information
and Instructions
Multifunction Electronic Control Module: Diagram Information and Instructions
How to Find and Use These Diagrams
Diagrams are presented in three main categories:
- Power Distribution Diagrams
- System Diagrams
- Grounds Diagrams
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Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Diagram Information
and Instructions > Page 50
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Diagram 13-7 (Sample Power Distribution Diagram Page)
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Power Distribution Diagrams Provide the circuit details of how the system diagrams are powered.
The power distribution source is shown at the top of a diagram page. All wires, connectors, and
splices are shown in the same manner that the current flows, ending at the component/system
being powered near the bottom of a diagram page. Circuits that go from one diagram page to
another will be marked with large arrow heads indicating which diagram page the circuit went
to/came from.
The power distribution diagrams can be found at Starting and Charging/Power and Ground
Distribution, or by following the hyperlinks at the top of the
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Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Diagram Information
and Instructions > Page 51
Page 50
diagram pages within the system diagrams.
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Diagram 85-1 (Sample System Diagram Page)
System Diagrams Components that work together are shown together in a system/subsystem
diagram or set of diagrams. The system feed (circuit breaker, fuse, etc.) is shown at the top of a
diagram page. All wires, connectors, components, and splices are shown in the same manner that
the current flows, ending at the ground at the bottom of a diagram page. Circuits that go from one
diagram page to another will be marked with large arrow heads indicating which diagram page the
circuit went to/came from.
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Diagram Information
and Instructions > Page 52
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Diagram 10-1 (Sample Grounds Diagram Page)
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Grounds Diagrams Provide the circuit details of how the system diagrams are grounded. This
information is useful for checking interconnections of the grounding circuits of different systems.
The components/systems being grounded are shown at the top of a diagram page. All wires,
connectors, and splices are shown in the same manner that the current flows, ending at the ground
at the bottom of a diagram page. Circuits that go from one diagram page to another will be marked
with large arrow heads indicating which diagram page the circuit went to/came from.
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Diagram Information
and Instructions > Page 53
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The grounds diagrams can be found at Starting and Charging/Power and Ground Distribution, or by
following the hyperlinks at the bottom of the diagram pages within the system diagrams.
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Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Diagram Information
and Instructions > Page 54
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Electrical Symbols
Page 59
Wire Color Code Identification
Wire and connector colors are listed as follows (standard Ford color abbreviations are used):
COLOR ABBREVIATIONS BU
Blue NA Natural
BK Black OG Orange
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Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Diagram Information
and Instructions > Page 55
Page 61
BN Brown PK Pink
Page 62
DB Dark Blue VT Purple
DG Dark Green RD Red
GN Green SR Silver
GY Gray TN Tan
LB Light Blue WH White
LG Light Green YE Yellow
Note: Whenever a wire is labeled with two colors, the first color listed is the basic color of the wire,
and the second color listed is the stripe marking of the wire.
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Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Diagram Information
and Instructions > Page 56
Multifunction Electronic Control Module: Diagnostic Aids
HOW TO FIND ELECTRICAL CONCERNS
TROUBLESHOOTING STEPS
These six steps present an orderly method of troubleshooting.
Step 1. Verify the concern.
- Operate the complete system to check the accuracy and completeness of the customer's
complaint.
Step 2. Narrow the concern.
- Using the wiring diagrams, narrow down the possible causes and locations of the concern to
pinpoint the exact cause.
- Read the description notes at the components and study the wiring schematic. You should then
know enough about the circuit operation to determine where to check for the trouble.
Step 3. Test the suspected cause.
- Use electrical test procedures to find the specific cause of the symptoms.
- The component location reference bars and the pictures will help you find components.
Component location information for connectors, diodes, resistors, splices and grounds can be
found at Vehicle Locations.
Step 4. Verify the cause.
- Confirm that you have found the correct cause by connecting jumper wires and/or temporarily
installing a known good component and operating the circuit.
Step 5. Make the repair.
- Repair or replace the inoperative component.
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Step 6. Verify the repair.
- Operate the system as in Step 1 and check that your repair has removed all symptoms without
creating any new symptoms.
Some engine circuits may need special test equipment and special procedures. See Testing and
Inspection for the specific component, system, or sub-system in question.
NOTE: Most Ford testing and inspection procedures will be found at the system/sub-system level;
only a few component tests are provided by OE.
TROUBLESHOOTING TOOLS
JUMPER WIRE
This is a test lead used to connect two points of a circuit. A Jumper Wire can bypass an open to
complete a circuit.
WARNING: Never use a jumper wire across loads (motors,etc.) connected between hot and
ground. This direct battery short may cause injury or fire.
VOLTMETER
A DC Voltmeter measures circuit voltage. Connect negative (- or black) lead to ground, and
positive (+ or red) lead to voltage measuring point.
OHMMETER
An Ohmmeter shows the resistance between two connected points.
TEST LAMP
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and Instructions > Page 57
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A Test Light is a 12-volt bulb with two test leads. Uses: Voltage Check, Short Check.
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SELF-POWERED TEST LAMP
The Self-Powered Test Lamp is a bulb, battery and set of test leads wired in series. When
connected to two points of a continuous circuit, the bulb glows. Uses: Continuity Check, Ground
Check.
CAUTION: When using a self -powered test lamp or ohmmeter; be sure power is off in circuit
during testing. Hot circuits can cause equipment damage and false readings.
In an inoperative circuit with a switch in series with the load, jumper the terminals of the switch to
power the load. If jumpering the terminals powers the circuit, the switch is inoperative.
CONTINUITY CHECK (Locating open circuits)
Connect one lead of Self-Powered Test Lamp or Ohmmeter to each end of circuit. Lamp will glow if
circuit is closed. Switches and fuses can be checked in the same way.
VOLTAGE CHECK
Connect one lead of test lamp to a known good ground or the negative (-) battery terminal. Test for
voltage by touching the other lead to the test
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and Instructions > Page 58
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point. Bulb goes on when the test point has voltage.
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SHORT CHECK
A fuse that repeatedly blows is usually caused by a short to ground. It's important to be able to
locate such a short quickly. 1. Turn off everything powered through the fuse. 2. Disconnect other
loads powered through the fuse:
- Motors: disconnect motor connector (Connector C4).
- Lights: remove bulbs.
3. Turn Ignition Switch to RUN (if necessary) to power fuse. 4. Connect one Test Lamp lead to hot
end of blown fuse. Connect other lead to ground. Bulb should glow, showing power to fuse. This
step is
just a check to be sure you have power to the circuit)
5. Disconnect the test lamp lead that is connected to ground, and reconnect it to the load side of
the fuse at the connector of the disconnected
component. (Connect the test lamp lead to connector C4). If the Test Lamp is off, the short is in the disconnected component.
- If the Test Lamp goes on, the short is in the wiring. You must find the short by disconnecting the
circuit connectors, one at a time, until the Test Lamp goes out. For example, with a ground at X,
the bulb goes out when C1 or C2 is disconnected, but not after disconnecting C3. This means the
short is between C2 and C3.
GROUND CHECK
Turn on power to the circuit. Perform a Voltage Check between the suspected inoperative ground
and the frame. Any indicated voltage means that the ground is inoperative.
Turn off power to the circuit. Connect one lead of a Self-Powered Test Lamp or Ohmmeter to the
wire in question and the other lead to a known ground. If the bulb glows, the circuit ground is OK.
DIAGRAMS These diagrams make it easy to identify common points in circuits. This knowledge
can help narrow the concern to a specific area. For example, if several circuits fail at the same
time, check for a common power or ground connection (see Power and Ground Distribution
Diagrams). If part of a
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and Instructions > Page 59
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circuit fails, check the connections between the part that works and the part that doesn't work.
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For example, if the lo beam headlamps work, but the high beams and the indicator lamp don't
work, then power and ground paths must be good. Since the dimmer switch is the component that
switches this power to the high beam lights and indicator, it is most likely the cause of failure.
TROUBLESHOOTING WIRING HARNESS AND CONNECTOR HIDDEN CONCERNS
The following illustrations are known examples of wiring harness, splices and connectors that will
create intermittent electrical concerns. The concerns are hidden and can only be discovered by a
physical evaluation as shown in each illustration.
NOTE: Several components, such as the PCM, utilize gold plated terminals in their connections to
the wiring harness. If those terminals need to be replaced, they must be replaced with a gold plated
terminal.
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and Instructions > Page 60
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Multifunction Electronic Control Module: Connector Views
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Multifunction Electronic Control Module: Electrical Diagrams
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Diagram 59-1
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Diagram 59-2
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Diagram 59-3
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Diagram 59-4
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and Instructions > Page 70
Diagram 59-5
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Multifunction Electronic Control Module: Description and Operation
The multi function modules consist of the following:
^ Generic Electronic Module (GEM)
The Generic Electronic Module (GEM) constantly monitors its subsystems for concerns. If a
concern is found in one of the subsystems, the GEM will record the concern in the form of a
Diagnostic Trouble Code (DTC).
The ignition switch position is very important to the GEM function. Often times, erratic or
unexpected GEM function can be traced to problems with these GEM inputs.
The GEM controls the following features:
^ Wipers/washers (front/rear).
^ Warning chimes.
^ Battery saver.
^ Illuminated entry and courtesy lamps.
^ Driver power window.
^ Accessory delay.
^ 4-wheel drive.
^ Heated backlite/mirror.
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Multifunction Electronic Control Module: Testing and Inspection
For further information regarding the Generic Electronic Module (GEM), please refer to the system
controlled by it:
The GEM controls the following features:
^ Wiper Control Module.
^ Audible Warning Device Control Module.
^ Interior Lighting Module.
^ Power Window Control Module.
^ Transfer Case Control Module.
^ Heated Glass Control Module.
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Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Page 73
Page 99
Multifunction Electronic Control Module: Service and Repair
GENERIC ELECTRONIC MODULE (GEM)
REMOVAL
1. Disconnect the battery ground cable.
CAUTION ^
Prior to removal of the module, it is necessary to upload module configuration information to New
Generation STAR (NGS) Tester. This information needs to be downloaded into the new module
once installed.
^ Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may
result.
2. Remove the steering column cover.
3. Remove the (A) bulkhead electrical connectors from the (B) instrument panel fuse junction
panel.
4. Remove the (A) instrument panel fuse junction panel bolts and remove the (B) interior fuse
junction panel nuts.
5. Disconnect the (A) Generic Electronic Module (GEM) electrical connectors from the (B) GEM.
Page 100
Ford Expedition 4wd Workshop Manual (V8-4.6L SOHC VIN W (1999))
Ford Workshop Manuals > Relays and Modules > Relays and Modules - Accessories and Optional Equipment >
Multifunction Electronic Control Module <--> [General Module] > Component Information > Diagrams > Page 74
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