Ford F-150 1998 Workshop Manual

ford :: Ford Truck F 150 4WD Pickup V8-5.4L
Prop SOHC VIN Z (1998)

> 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 )

P0500 - P0504: Testing and InspectionP0500 ( P 0500 )

For diagnosis of refer to the system experiencing the problem.P0500

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 SpeedSensor (VSS)

For complete Engine Control diagnostic information, See: Powertrain Management/Computers and Control Systems/Testing and Inspection

Transfer Case

ESOF - Electronic Shift on the Fly

> 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

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

> 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

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1432 - P1820 Electronic Shift on the Fly (ESOF)

MSOF - Mechanical Shift on the Fly

B1450 - P1828 Mechanical Shift on the Fly (MSOF)

For complete Transfer Case diagnostic information, See: Transmission and Drivetrain/Transfer Case/Testing and Inspection

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1800 - P1804, ( P1801 P1802 P1803 1800 1801 1802 1803 1804 ) > System Information > System Diagnosis

P1800 - P1804: Testing and Inspection

For diagnosis of refer to the system experiencing the problem.P1804

Transfer Case

ESOF - Electronic Shift on the Fly

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1800 - P1804, ( P1801 P1802 P1803 1800 1801 1802 1803 1804 ) > System Information

> System Diagnosis > Page 15

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1432 - P1820 Electronic Shift on the Fly (ESOF)

MSOF - Mechanical Shift on the Fly

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1800 - P1804, ( P1801 P1802 P1803 1800 1801 1802 1803 1804 ) > System Information

> System Diagnosis > Page 16

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1450 - P1828 Mechanical Shift on the Fly (MSOF)

For complete Transfer Case diagnostic information, See: Transmission and Drivetrain/Transfer Case/Testing and Inspection

Instrument Panel

For complete Instrument Panel diagnostic information, See: Instrument Panel, Gauges and Warning Indicators/Instrument Cluster/Testing andInspection

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1805 - P1809, ( P1806 P1807 P1808 1805 1806 1807 1808 1809 ) > System Information > System Diagnosis > P1806

P1805 - P1809: Testing and InspectionP1806

For diagnosis of refer to the system experiencing the problem.P1806

Transfer Case

ESOF - Electronic Shift on the Fly

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1805 - P1809, ( P1806 P1807 P1808 1805 1806 1807 1808 1809 ) > System Information

> System Diagnosis > P1806 > Page 21

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1432 - P1820 Electronic Shift on the Fly (ESOF)

MSOF - Mechanical Shift on the Fly

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1805 - P1809, ( P1806 P1807 P1808 1805 1806 1807 1808 1809 ) > System Information

> System Diagnosis > P1806 > Page 22

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1450 - P1828 Mechanical Shift on the Fly (MSOF)

For complete Transfer Case diagnostic information, See: Transmission and Drivetrain/Transfer Case/Testing and Inspection

Instrument Panel

For complete Instrument Panel diagnostic information, See: Instrument Panel, Gauges and Warning Indicators/Instrument Cluster/Testing andInspection

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1805 - P1809, ( P1806 P1807 P1808 1805 1806 1807 1808 1809 ) > System Information > System Diagnosis > P1806 > Page 23

P1805 - P1809: Testing and InspectionP1808

For diagnosis of refer to the system experiencing the problem.P1808

Transfer Case

ESOF - Electronic Shift on the Fly

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1805 - P1809, ( P1806 P1807 P1808 1805 1806 1807 1808 1809 ) > System Information

> System Diagnosis > P1806 > Page 24

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1432 - P1820 Electronic Shift on the Fly (ESOF)

MSOF - Mechanical Shift on the Fly

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1805 - P1809, ( P1806 P1807 P1808 1805 1806 1807 1808 1809 ) > System Information

> System Diagnosis > P1806 > Page 25

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1450 - P1828 Mechanical Shift on the Fly (MSOF)

For complete Transfer Case diagnostic information, See: Transmission and Drivetrain/Transfer Case/Testing and Inspection

Instrument Panel

For complete Instrument Panel diagnostic information, See: Instrument Panel, Gauges and Warning Indicators/Instrument Cluster/Testing andInspection

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1810 - P1814, ( P1811 P1812 P1813 1810 1811 1812 1813 1814 ) > System Information > System Diagnosis > P1810

P1810 - P1814: Testing and InspectionP1810

For diagnosis of refer to the system experiencing the problem.P1810

Transfer Case

ESOF - Electronic Shift on the Fly

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1810 - P1814, ( P1811 P1812 P1813 1810 1811 1812 1813 1814 ) > System Information

> System Diagnosis > P1810 > Page 30

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1432 - P1820 Electronic Shift on the Fly (ESOF)

MSOF - Mechanical Shift on the Fly

> A L L Diagnostic Trouble Codes ( DTC ) > Codes by Number > P1800-P18ZZ > P1810 - P1814, ( P1811 P1812 P1813 1810 1811 1812 1813 1814 ) > System Information

> System Diagnosis > P1810 > Page 31

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

B1450 - P1828 Mechanical Shift on the Fly (MSOF)

For complete Transfer Case diagnostic information, See: Transmission and Drivetrain/Transfer Case/Testing and Inspection

Instrument Panel

For complete Instrument Panel diagnostic information, See: Instrument Panel, Gauges and Warning Indicators/Instrument Cluster/Testing andInspection

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Specifications

Alarm Module: Specifications

Remote Anti-Theft Personality Module Nuts ..................................................................................................................................... 7-8.1 Nm (62-72 in lb)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Specifications > Page 37

Alarm Module: Description and Operation

The RAP module controls the anti-theft system and the keyless entry system. The RAP module communicates with the GEM to request that the interiorlights be turned ON/OFF with use of the keyless entry remote transmitter, and the GEM communicates with the RAP module to inform when the door isopened. REFER to Module Communications Network for inter-module communication.

(RAP)

The ignition lock anti-theft switch detects if the ignition key cylinder is broken or "slam pulled" during a theft. The ignition lock anti-theft switch isalways monitored by the Remote Anti-theft Personality module. This allows the alarm system to be triggered if the ignition lock anti-theft switchdetects tampering of the ignition key cylinder (even in the event that the alarm is not active at the time).

(GEM)

The door open warning lamp switch communicates with the RAP module through the Generic Electronic Module . This input to the RAP modulewill cause the anti-theft alarm to be sounded if the anti-theft alarm was armed.

The door disarm switches are attached to both the LH and RH lock cylinder. The door disarm switch must be triggered before the mechanical lockunlocks. This prevents the anti-theft alarm from activating when it should have been disarmed.

In addition to the perimeter alarm that uses the door open warning lamp switch, the RAP module also uses the ignition lock anti-theft switch and theautolock/relock feature to prevent theft of the vehicle. For a full description of the autolock/relock system, REFER to the Keyless Entry system.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Specifications > Page 38

Alarm Module: Service and Repair
REMOVAL

1. Disconnect the battery ground cable.

Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.CAUTION:

2. Remove the LH front door scuff plate.

3. Remove the LH cowl side trim panel.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Specifications > Page

39

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

4. Disconnect the two Remote Anti-theft Personality module electrical connectors.(RAP)

1 Disconnect C257.
2 Disconnect C256.

If C256 is disconnected first, an inadvertent IGNTAM alarm event (AL_EVT) will be stored and the alarm will sound. The alarm must beNOTE:

disarmed by the remote unlock button or a key in the door lock cylinder to UNLOCK. To avoid this condition, disconnect (1) C257 before (2)C256 and reconnect (2) C256 before (1) C257.

5. Remove the RAP module nuts and the RAP module.

INSTALLATION

1. To install, reverse the removal procedure.

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 or more to relearn the strategy.16 km (10 mi)

^ To avoid inadvertent alarm activation, reconnect C256 first.

^NOTE:

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Multifunction Electronic Control Module <--> [General Module] > Component Information > Specifications

Multifunction Electronic Control Module: Specifications

GEM/CTM Screws ........................................................................................................................................................................... 0.9-1.3 Nm (8-12 in lb)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Multifunction Electronic Control Module <--> [General Module] > Component Information > Specifications > Page 43

Multifunction Electronic Control Module: Description and Operation

(CTMs)

Central Timer Modules are equipped on two-wheel drive vehicles without power windows. All other vehicles have a Generic Electronic Module.(GEM)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Multifunction Electronic Control Module <--> [General Module] > Component

Information > Specifications > Page 44

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

NOTE: (NGS)

CTM diagnostics are not compatible with the New Generation STAR Tester; instead, the diagnostics are internal to the module. Thediagnostic mode is entered by shorting two pins of the diagnostic connector together.
The GEM inputs and outputs are designed to withstand continuous exposure to a short circuit to ground or battery voltage without being damaged.

GEM Diagnostics

(SBDS)

The GEM diagnostics are accessible with the New Generation Star Tester and the Service Bay Diagnostic System . The GEM constantlymonitors 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 DiagnosticTrouble Code .(DTC)

There are three areas of diagnostic information useful when diagnosing the GEM.

^ DTCs A record of past or present system problems.

^ PIDs - The present state of an input or output.
^ Active Commands Gives the ability to turn on GEM outputs without activating the inputs normally associated with the function.

Ignition Switch Positions

The position of the ignition switch is very important to proper GEM operation. Often times, erratic or unexpected operation can be traced to problems onthese GEM inputs. The following is a brief description of five ignition switch positions.

When the ignition switch is in the RUN position, battery voltage should be present at the GEM/CTM RUN and RUN/ACC input terminals When theignition switch is in the ACC position, battery voltage should be present at the GEM/CTM RUN/ACC input terminal only.
When the ignition switch is in the START position, battery voltage should be present at the GEM/CTM start/clutch depressed input.

The GEM module does not have an OFF or LOCK Switch State input. The GEM will assume the OFF or LOCK position when there are no RUN, ACC,or START signals present.

GEM Features and Functions

GEM Feature Matrix

The GEM controls the following features:

^ Wipers/washers.
^ Warning chimes.
^ Battery saver.
^ Illuminated entry and courtesy lamps.
^ Driver power window
^ Accessory delay.
^ 4-wheel drive

Wiper/Washer Control and Interval Timer

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Multifunction Electronic Control Module <--> [General Module] > Component

Information > Specifications > Page 45

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

There are four modes of operation for the wipers: interval (standard CTM and speed-dependent GEM), LOW, HI, and wash. These modes are onlyactive with the ignition switch in the RUN or ACC position. Speed dependent wipers compensate for the extra moisture that accumulates on thewindshield at higher speeds. At higher speeds, the speed dependent feature shortens the delay between wipers when using the variable interval wiperfeature. Delays will automatically adjust at speeds between .16 and 105 km/h (10 and 65 mph)

Chime Warning

There are four warning chimes and lamps that are controlled by the GEM and CTM: headlamps operating without the ignition on (chime only), door ajar(chime and lamp), key in the ignition (chime only), and driver seat belt warning (chime and lamp).

Battery Saver

40 minutes

The battery saver feature removes extended interior lamp power drains from the battery. The GEM and CTM will keep power available for all interiorlights and hood lamp circuits for after the ignition switch is turned OFF. The battery saver timer is reset by lifting a door handle (GEM only),activating a door ajar switch, unlocking door with the keyless entry remote transmitter, or changing the ignition to RUN or ACC position. If asleep, theGEM and CTM will wake up when one of the following occurs:

^ Any door becomes ajar or is closed.
^ The key is inserted or removed.
^ The ignition switch is turned to ACC or RUN.
^ The doors are unlocked with the keyless entry remote transmitter.

Courtesy Lamps/Illuminated Entry

The GEM/CTM illuminates the interior courtesy lamps when any door is ajar. The GEM also receives a signal from the Remote Anti-theft Personality module for keyless entry illumination. All interior courtesy lamps are turned off when any of the following occur:(RAP)

^

have elapsed since the illuminated entry feature was activated.Twenty-five seconds

^ The ignition switch is turned to RUN.
^

25 km/h (15 mph) 16 km/h (10 mph)

Vehicle speed is over (a new ajar signal will turn on courtesy lamps only if the vehicle speed is less than - GEM only).

Delayed Accessory (GEM only)

ten minutes

The delayed accessory feature provides power to the power windows for after the ignition switch is moved from the RUN to the OFFposition. If during this period either door is opened, the delayed accessory relay will be de-energized.ten-minute

One-Touch Down Window (GEM only)

The power switch for the driver window control has two detents for the down window control. With the ignition switch in RUN or ACC, pressing thefirst detent (normal mode) allows manual down window control; pressing the switch farther to the second detent (auto) will cause the driver window toautomatically move to the full down position. Pressing either the up or down window switch will cancel an auto mode operation in progress.

Transfer Case (4-Wheel Drive - GEM Only)

Two types of 4-wheel drive systems are offered: the Mechanical Shift-On-the-Fly and the Electronic Shift-On-the-Fly .(MSOF) (ESOF)

RAP-Controlled Functions

The RAP module controls the door locks through three external relays located under the instrument panel relay cover:

^ Driver unlock relay.
^ All unlock relay.
^ All lock relay.

The RAP module receives input from the following components for electronic door lock system operation:

^ Keyless entry remote transmitters.
^ Door ajar output from the GEM.
^ Door unlock switches (LH/RH).
^

Brake Pedal Position switch.(BPP)

^

Digital Transmission Range sensor.(DTR)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Multifunction Electronic Control Module <--> [General Module] > Component Information > Specifications > Page 46

Multifunction Electronic Control Module: Service and Repair

GENERIC ELECTRONIC MODULE

REMOVAL

1. Disconnect the battery ground cable.

Electronic modules are sensitive to electrical charges. If exposed to these charges, damage may result.CAUTION:

2. Remove the cover from the instrument panel fuse junction panel.

3. Remove the lower instrument panel steering column cover.
1 Remove the lower instrument panel steering column cover bolts.
2 Remove the lower instrument panel steering column cover.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Multifunction Electronic Control Module <--> [General Module] > Component

Information > Specifications > Page 47

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

4. Remove the (A) bulkhead electrical connectors from the (B) instrument panel fuse junction panel.

5 Remove the (A) instrument panel fuse junction panel bolts and remove the (B) interior fuse junction panel nuts.

6. Disconnect the (A) Generic Electronic Module/Central Timer Module electrical connectors from the (B) GEM/CTM.(GEM/CTM)

7. Remove the GEM/CTM screws and the GEM/CTM.

INSTALLATION

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Multifunction Electronic Control Module <--> [General Module] > Component

Information > Specifications > Page 48

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

1. To install, reverse the removal procedure.
^ Check for proper operation.

NOTE:

When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptivestrategy. The vehicle may need to be driven or more to relearn the strategy.16 km (10 mi)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins > Customer Interest for Electronic Brake Control Module:

> 98-9-15 > May > 98 > ABS - Lamp ON/DTC B1342 Stored

Electronic Brake Control Module: Customer InterestABS - Lamp ON/DTC B1342 Stored

Article No.98-9-15
05/11/98
^

BRAKES - 4WABS - ABS LAMP ILLUMINATED WITHDIAGNOSTIC TROUBLE CODE (DTC) B1342STORED IN MEMORY AND/OR CODES NOT LISTEDIN WORKSHOP MANUAL - VEHICLES BUILTTHROUGH 2/12/98

^

LAMP - ABS LAMP ILLUMINATED WITHDIAGNOSTIC TROUBLE CODE (DTC) B1342STORED IN MEMORY AND/OR CODES NOT LISTEDIN WORKSHOP MANUAL - VEHICLES BUILTTHROUGH 2/12/98

LIGHT TRUCK:1997-98 EXPEDITION, F-150, F-250 LD 1998 NAVIGATOR

ISSUEThe Anti-lock Brake System (ABS) lamp may illuminate and Diagnostic Trouble Code (DTC) B1342 may be stored in memory and/or New GenerationStar (NGS) Tester may read "Invalid Code." This may be caused by the Nonvolatile Random Access Memory (NVRAM) chip inside the anti-lock brakecontrol module not resetting at low residual voltages. ABS brake function may become inoperative, however, normal braking operation will bemaintained.

ACTIONReplace the anti-lock brake control module. Modules with a build date of 2/19/98 or later have been revised to incorporate a new NVRAM chip. Refer tothe appropriate Workshop Manual, Section 206-09, for replacement procedures.
PART NUMBER PART NAME

F75Z-2C065-AA

Anti-lock Brake Control Module(F-150)

F75Z-20065-BA Anti-lock Brake Control Module (F-250 LD)
F7SZ-2C065-CA

Anti-lock Brake Control Module(Expedition, Navigator)
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
980915A Diagnose And Replace 0.6 Hr.

ABS Module - F-Series,Expedition, And Navigator

DEALER CODING

CONDITION
BASIC PART NO. CODE
2C065 42

OASIS CODES: 206000, 301000

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Electronic Brake

Control Module: > 98-9-15 > May > 98> ABS - Lamp ON/DTC B1342 Stored

Electronic Brake Control Module: All Technical Service BulletinsABS - Lamp ON/DTC B1342 Stored

Article No.98-9-15
05/11/98
^

BRAKES - 4WABS - ABS LAMP ILLUMINATED WITHDIAGNOSTIC TROUBLE CODE (DTC) B1342STORED IN MEMORY AND/OR CODES NOT LISTEDIN WORKSHOP MANUAL - VEHICLES BUILTTHROUGH 2/12/98

^

LAMP - ABS LAMP ILLUMINATED WITHDIAGNOSTIC TROUBLE CODE (DTC) B1342STORED IN MEMORY AND/OR CODES NOT LISTEDIN WORKSHOP MANUAL - VEHICLES BUILTTHROUGH 2/12/98

LIGHT TRUCK:1997-98 EXPEDITION, F-150, F-250 LD 1998 NAVIGATOR

ISSUEThe Anti-lock Brake System (ABS) lamp may illuminate and Diagnostic Trouble Code (DTC) B1342 may be stored in memory and/or New GenerationStar (NGS) Tester may read "Invalid Code." This may be caused by the Nonvolatile Random Access Memory (NVRAM) chip inside the anti-lock brakecontrol module not resetting at low residual voltages. ABS brake function may become inoperative, however, normal braking operation will bemaintained.

ACTIONReplace the anti-lock brake control module. Modules with a build date of 2/19/98 or later have been revised to incorporate a new NVRAM chip. Refer tothe appropriate Workshop Manual, Section 206-09, for replacement procedures.
PART NUMBER PART NAME

F75Z-2C065-AA

Anti-lock Brake Control Module(F-150)

F75Z-20065-BA Anti-lock Brake Control Module (F-250 LD)
F7SZ-2C065-CA

Anti-lock Brake Control Module(Expedition, Navigator)
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
980915A Diagnose And Replace 0.6 Hr.

ABS Module - F-Series,Expedition, And Navigator

DEALER CODING

CONDITION
BASIC PART NO. CODE
2C065 42

OASIS CODES: 206000, 301000

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins > Page 63

Electronic Brake Control Module: Specifications
TORQUE SPECIFICATIONS

Rear Wheel Anti-Lock Control Module Screws ......................................................................................................................... 2-3 Nm (17-26 inch lbs.)4-Wheel Anti-Lock Control Module Screws .............................................................................................................................. 4-5 Nm (36-44 inch lbs.)

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Technical Service Bulletins > Page 64

Electronic Brake Control Module: Locations

Instrument Panel View

The Rear Anti-Lock Brake System Module is located behind right side of the instrument panel.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Service and Repair > Four Wheel Anti-Lock Brake System (4WABS)

Electronic Brake Control Module: Service and RepairFour Wheel Anti-Lock Brake System (4WABS)

Removal

1. Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.CAUTION:

Disconnect the battery ground cable.

2. Disconnect the anti-lock brake control module electrical connectors.

3. Disconnect the pump motor electrical connector from the anti-lock brake control module.

4. Remove the anti-lock brake control module.
1 Remove the screws.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Service and Repair > Four Wheel

Anti-Lock Brake System (4WABS) > Page 67

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

2 Remove the anti-lock brake control module.

Installation

1. When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptiveNOTE:

strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.
To install, reverse the removal procedure.

> Relays and Modules > Relays and Modules - Brakes and Traction Control > Electronic Brake Control Module > Component Information > Service and Repair > Four Wheel Anti-Lock Brake System (4WABS) > Page 68

Electronic Brake Control Module: Service and RepairRear Antilock Brake System (RABS)

Removal

1. Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.CAUTION:

Disconnect the battery ground cable.

2. Remove the instrument panel cluster panel. See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel/Service and Repair

3. Remove the anti-lock brake control module,
1 Disconnect the anti-lock brake control module electrical connector.
2 Remove the bolts.
3 Remove the anti-lock brake control module.

Installation

1. When the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptiveNOTE:

strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn, the strategy.
To install, reverse the removal procedure.

> Relays and Modules > Relays and Modules - Instrument Panel > Audible Warning Device Control Module > Component Information > Description and Operation

Audible Warning Device Control Module: Description and Operation

The Generic Electronic Module and Central Timer Module control the following warnings and chimes:(GEM) (CTM)

^ Driver safety belt not fastened (warning lamp and repetitive chime).
^ Key-in-ignition (repetitive chime).
^ Headlamp-on warning (repetitive chime).

> Relays and Modules > Relays and Modules - Instrument Panel > Audible Warning Device Control Module > Component Information > Description and Operation > Page 73

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

^ Door ajar (warning lamp and single tone).

The following four distinct chime rates are used to indicate warning:

^ Safety belt warning chime is one chime per second.
^ Key-in-ignition warning is two chimes per second.
^ Headlamp-on warning is four chimes per second.
^ Door ajar warning is a single chime.

Safety Belt Warning Chime

The safety belt warning chime warns that the safety belt is not fastened. The safety belt warning chime will sound when the driver safety belt is notfastened when the ignition switch is turned from the OFF/LOCK or ACC to the RUN or START position.

The safety belt warning chime will stop sounding when:

^ The safety belt is fastened.
^ The ignition switch is switched from the RUN or START to the OFF/LOCK or ACC position.
^

The chime has sounded for six seconds.

The safety belt warning chime inputs are:

^ Ignition switch START position (battery potential on the START [clutch depressed] input).
^ Ignition switch RUN position (battery potential on RUN and RUN/ACC inputs).
^ Driver safety belt switch (grounded when not fastened, open circuit when fastened).

Door Ajar Warning Chime

one second

The door ajar warning chime warns that a door has become ajar. The door ajar warning chime is a single tone with the duration of . Thechime will sound when:

^ GEM: Driver or passenger door initially becomes ajar while the ignition switch is in the RUN position.
^ CTM: Passenger door initially becomes ajar while the ignition switch is in the RUN position.

The door ajar warning chime inputs are:

^ Ignition switch RUN position (battery potential on both RUN and RUN/ACC inputs).
^ Door ajar switches (open circuit with door closed, grounded with door ajar).

Key-In-Ignition Warning Chime

The key-in-ignition chime warns that the key is still in the ignition when the driver door is ajar. The key-in-ignition warning chime will sound when:

^ GEM: Driver door is ajar, the ignition switch is in the OFF/LOCK or ACC position and the key is in the ignition.
^ CTM: Driver door is ajar, the ignition switch is in the OFF/LOCK, ACC or RUN position and the key is in the ignition.

The key-in-ignition warning chime will stop sounding when:

^ The driver door is closed.
^ The key is removed from the ignition.
^ GEM: Ignition switch is switched to the RUN position.

The key-in-ignition warning chime inputs are:

^ Ignition switch RUN position (battery potential on both RUN and RUN/ACC inputs).
^ Ignition switch ACC position (battery potential on RUN/ACC input only).
^ Key-in-ignition switch (grounded with key-in-ignition, open circuit with key-out).
^ LH door ajar switch (open circuit with door closed, grounded with door ajar).

Headlamps Warning Chime

The headlamps warning chime warns that the headlamps are on while the driver door is ajar. The headlamps warning chime will sound when all thefollowing conditions are met:

^ The driver door is ajar.
^ The headlamp switch is in the PARK or HEAD position.
^ The ignition switch state is in the OFF/LOCK position.
^ Key-out.

The headlamps warning chime will stop sounding when any one of the conditions above are removed. The headlamps warning chime inputs are:

^ Ignition switch OFF/LOCK (open circuit on all ignition inputs).
^ Headlamp switch (battery potential when in PARK or HEAD position, open circuit when in OFF position).
^ Driver door ajar switch (open circuit with door closed, grounded with door ajar).
^ Key-in-ignition switch (grounded with key-in-ignition, open circuit with key-out).

> Relays and Modules > Relays and Modules - Instrument Panel > Audible Warning Device Control Module > Component Information > Description and Operation > Page 74

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

Safety Belt Warning Lamp

The safety belt warning lamp warns that the safety belt is not fastened. The safety belt warning lamp illuminates when it is grounded and turns off whenthe circuit is open. The safety belt warning lamp will illuminate when the safety belt is not fastened and the ignition switch is turned from the OFF/LOCKor ACC to the RUN or START position.
The safety belt warning lamp will turn off when:

^ The safety belt is fastened.
^ The ignition switch is switched from the RUN or START to the OFF/LOCK or ACC position.
^

After the lamp is illuminated for 61 seconds.

The safety belt warning lamp inputs are:

^ Ignition switch START position (battery potential when in START).
^ Ignition switch RUN position (battery potential on both RUN and RUN/ACC inputs).
^ Driver safety belt switch (grounded when not fastened, open circuit when fastened).

Door Ajar Warning Lamp

The door ajar warning lamp warns that a door is ajar. The door ajar warning lamp illuminates when it is grounded. The door ajar warning lamp will beilluminated when any door initially becomes ajar while the ignition switch is in the RUN or START position.

The door ajar warning lamp will turn off when all doors are closed or the ignition switch is turned to the OFF/LOCK or ACC position. The door ajarwarning lamp inputs are:

^ Ignition switch START position (battery potential when in START).
^ Ignition switch RUN position (battery potential on both RUN and RUN/ACC inputs).
^ Door open warning lamp switches (grounded with door ajar, open circuit with door closed).

> Relays and Modules > Relays and Modules - Instrument Panel > Speedometer Module > Component Information > Testing and Inspection

Speedometer Module: Testing and Inspection

Refer to Instrument Panel/Testing and Inspection/Procedures.

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram Information and Instructions

Battery Discharge Protection Relay: 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

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram

Information and Instructions > Page 83

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram

Information and Instructions > Page 84

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

Sample Power Distribution Diagram

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 adiagram page. Circuits that go from one diagram page to another will be marked with large arrow heads.
The power distribution diagrams can be found at Starting and Charging/Power and Ground Distribution.

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram

Information and Instructions > Page 85

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

Sample System Diagram

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.) isshown 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 theground at the bottom of a diagram page. Circuits that go from one diagram page to another will be marked with large arrow heads.

Management, Radio/Stereo, etc.

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram

Information and Instructions > Page 86

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

Sample Grounds Diagram

Grounds Diagrams

Provide the circuit details of how the system diagrams are grounded. This information is useful for checking interconnections of the grounding circuitsof different systems. The components/systems being grounded are shown at the top of a diagram page. All wires, connectors, and splices are shown in thesame 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 bemarked with large arrow heads.
The grounds diagrams can be found at Starting and Charging/Power and Ground Distribution.

Symbol Identification

ELECTRICAL SYMBOLS

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram

Information and Instructions > Page 87

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

Electrical Symbols

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram

Information and Instructions > Page 88

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

Electrical Symbols

VACUUM SYMBOLS

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram

Information and Instructions > Page 89

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

Vacuum Symbols

Wire Color Code Identification

BK

BL

BR
: Black: Blue: Brown: Dark BlueDB

DG
GY
GN

LB

LG
PK

O

P

R

T

V

W

: Dark Green: Gray: Green: Light Blue: Light Green: Pink: Orange: Purple: Red: Tan: Violet: White: YellowY

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 ofthe wire.

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram Information and Instructions > Page 90

Battery Discharge Protection Relay: Electrical Diagrams

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Diagram

Information and Instructions > Page 91

F 150 4WD Pickup V8-5.4L Prop SOHC VIN Z (1998)

Courtesy Lamps

Generic Electronic Module

> Relays and Modules > Relays and Modules - Lighting and Horns > Battery Discharge Protection Relay, Lighting > Component Information > Diagrams > Page 92

Battery Discharge Protection Relay: Description and Operation
Battery Saver Relay

The following components are under the control of the battery saver relay:

Delayed accessory relay.
Overhead interior lamp with map lamps.
Underhood lamp switch.
Glove box lamp switch.
Overhead interior lamp switch.
Interior lamp relay coil.

The battery saver relay becomes active (relay coil is energized) when the GEM is in awake mode and is deactivated (relay coil is de-energized) insleep mode.

The battery saver will remain active until the ignition state is not ACC or RUN and 45 minutes have passed since last active input. At that time, the relay will be deactivated and power to the above circuits will terminate.

Five minutes after the battery saver relay has become deactivated, the GEM will go into a lower power state known as sleep mode. In the sleep mode,the GEM will deactivate all outputs and will monitor select inputs.
Logical characteristics of the GEM battery saver mode are as follows:

Feature Inputs:

Sleep/Awake mode status.

Feature Outputs:

Battery saver relay control (Open circuit in sleep mode, grounded when awake).

> Relays and Modules > Relays and Modules - Lighting and Horns > Daytime Running Lamp Control Unit > Component Information > Specifications

Daytime Running Lamp Control Unit: Specifications

Daytime Running Lamps Control Module Bolt ............................................................................................................................. 2.5-3.1 N.m (22-28 Lb/In)

> Relays and Modules > Relays and Modules - Lighting and Horns > Daytime Running Lamp Control Unit > Component Information > Specifications > Page 96

Daytime Running Lamp Control Unit: Service and Repair
REMOVAL

1. Remove the daytime running lamps control from the radiator support.
1 Remove the bolt.
2 Disconnect the electrical connector.
3 Remove the daytime running lamps control module.

INSTALLATION

1. To install, reverse the removal procedure.